various fixes, a few new features
authorIan Kelling <ian@iankelling.org>
Mon, 8 May 2023 22:29:58 +0000 (18:29 -0400)
committerIan Kelling <ian@iankelling.org>
Mon, 8 May 2023 22:29:58 +0000 (18:29 -0400)
12 files changed:
brc
brc2
btrbk-run
btrfsmaint
conflink
distro-end
filesystem/usr/share/gitweb/gitweb.cgi [deleted file]
laptop-btrbk
machine_specific/kd/filesystem/etc/systemd/system/btrbk-spread.service [new file with mode: 0644]
machine_specific/kd/filesystem/etc/systemd/system/btrbk-spread.timer [new file with mode: 0644]
mail-setup
system-status

diff --git a/brc b/brc
index 7d58392d65fe59e5870d862232690bb74a527291..1539a767e0aaec91969f25b49234eb1dbc40b503 100644 (file)
--- a/brc
+++ b/brc
@@ -1013,7 +1013,7 @@ ccomp tail etail etail2
 
 showkeys() {
   ssh "$@" cat .ssh/authorized_keys{,2}
-  }
+}
 
 
 # print exim old pids
@@ -2573,6 +2573,10 @@ if [[ $- == *i* ]]; then
     if [[ $MAIL_HOST && $MAIL_HOST != "$HOSTNAME" ]]; then
       ps_char="@ $ps_char"
     fi
+    jobs_char=
+    if [[ $(jobs -p) ]]; then
+      jobs_char='\j '
+    fi
     # We could test if sudo is active with sudo -nv
     # but then we get an email and log of lots of failed sudo commands.
     # We could turn those off, but seems better not to.
@@ -2582,7 +2586,7 @@ if [[ $- == *i* ]]; then
     if [[ ! $HISTFILE ]]; then
       ps_char="NOHIST $ps_char"
     fi
-    PS1="${PS1%"${PS1#*[wW]}"} $psudo\[$ps_color\]$ps_char\[$term_nocolor\] "
+    PS1="${PS1%"${PS1#*[wW]}"} $jobs_char$psudo\[$ps_color\]$ps_char\[$term_nocolor\] "
 
     # set titlebar. instead, using more advanced
     # titelbar below
diff --git a/brc2 b/brc2
index 676c5973a760a2c7936cd24c901336a8f09b2727..c747109446d861432fdac44edf5fa2dfed694c6c 100644 (file)
--- a/brc2
+++ b/brc2
@@ -3159,6 +3159,17 @@ fixu() {
   fi
 }
 
+# unmute
+um() {
+  pactl set-sink-mute @DEFAULT_SINK@ false
+  rm -f /tmp/ianknap
+}
+nap() {
+  pactl set-sink-mute @DEFAULT_SINK@ true
+  touch /tmp/ianknap
+}
+
+
 # systemctl is-enabled / status / cat says nothing, instead theres
 # some obscure symlink. paths copied from man systemd.unit.
 # possibly also usefull, but incomplete, doesnt show units not loaded in memory:
index cf7cf836f4ec96f966dc477d7fee631dbdcd68d2..cec50f1cff60278ce628d7db4dc6189ed8132397 100644 (file)
--- a/btrbk-run
+++ b/btrbk-run
@@ -89,8 +89,9 @@ targets=()
 early=false
 cron=false
 fast=false
+kd_spread_maybe=false
 orig_args=("$@")
-temp=$(getopt -l cron,fast,pull-reexec,help 23ceil:m:npqrs:t:vh "$@") || usage 1
+temp=$(getopt -l cron,fast,pull-reexec,help 23ceikl:m:npqrs:t:vh "$@") || usage 1
 eval set -- "$temp"
 while true; do
   case $1 in
@@ -113,6 +114,8 @@ while true; do
     # switch mail-host, no need to repeat the same checks again.
     --fast) fast=true ;;
     -i) incremental_strict=true ;;
+    # note this implies resume
+    -k) kd_spread_maybe=true ;;
     # bytes per second, suffix k m g
     -l) rate_limit=$2; shift ;;
     # Comma separated mountpoints to backup. This has defaults set below.
@@ -145,6 +148,14 @@ while true; do
   shift
 done
 
+if $kd_spread_maybe; then
+  if [[ $1 && $1 != resume ]]; then
+    die "dont pass -k without resume or empty run arg"
+  fi
+  cmd_arg=resume
+fi
+
+
 cmd_arg=${1:-run}
 
 
@@ -180,9 +191,6 @@ if [[ -v targets && $source ]]; then
   die "error: -t and -s are mutually exclusive"
 fi
 
-if $verbose; then
-  printf "$pre options: conf_only=%s\ndry_run=%s\nrate_limit=%s\nverbose=%s\ncmd_arg=%s" "$conf_only" "$dry_run" "$rate_limit" "$verbose" "$cmd_arg"
-fi
 ### end options parsing
 
 # remove path from earlier version of btrbk
@@ -207,7 +215,7 @@ kd_spread=false
 if [[ ! -v targets && ! $source ]]; then
   if $cron; then
     if [[ $HOSTNAME != "$MAIL_HOST" ]]; then
-      if [[ $HOSTNAME == kd && $MAIL_HOST == x3 ]]; then
+      if $kd_spread_maybe && [[ $HOSTNAME == kd && $MAIL_HOST == x3 ]]; then
         if ping -q -c1 -w1 x3.office.fsf.org &>/dev/null; then
           work_host=x3.office.fsf.org
         elif ping -q -c1 -w1 x3wg.b8.nz &>/dev/null; then
@@ -311,6 +319,11 @@ if [[ ! -v targets && ! $source ]]; then
   esac
 fi
 
+if $verbose; then
+  printf "$pre options: conf_only=%s\ndry_run=%s\nrate_limit=%s\nverbose=%s\ncmd_arg=%s" "$conf_only" "$dry_run" "$rate_limit" "$verbose" "$cmd_arg"
+fi
+
+
 if [[ -v targets ]]; then
   echo "targets: ${targets[*]}"
 fi
@@ -447,7 +460,6 @@ else
 
   sshable=()
   sshfail=()
-  min_idle_ms=$((1000 * 60 * 15))
   for h in ${targets[@]}; do
     if $fast || $conf_only; then
       # Use some typical values in this case
@@ -484,15 +496,26 @@ else
       die "error: filesystem on target $h is $percent_used % full"
     fi
 
-    # This is a separate ssh because xprintidle can fail and thats ok.
-    if $cron && idle_ms=$(timeout -s 9 6 ssh $h DISPLAY=:0 xprintidle); then
-      if (( idle_ms < min_idle_ms )); then
-
+    # on sy, xprintidle is resetting every 12 seconds even when not
+    # idle, i dunno why, instead we are checking if the screen is locked,
+    # which is good enough.
+    #
+    # This is a separate ssh because the command can fail and thatis ok.
+    if $cron; then
+      locked=false
+      if lock_info=$(timeout -s 9 6 ssh $h DISPLAY=:0 xscreensaver-command -timer); then
+        if [[ $lock_info != *non-blanked* ]]; then
+          locked=true
+        fi
+      else
+        locked=true
+      fi
+      if $locked; then
         # Ignore this host. i sometimes use a non-main machine for
         # testing or web browsing, knowing that everything will be wiped
         # by the next backup, but I dont want it to happen as Im using
         # it from cronjob.
-        e "warning: $h: active X session in the last 15 minutes, skipping for now"
+        e "warning: $h: seems to be actively in use, skipping for now"
         continue
       fi
     fi
index 0204ed5aa78a4e9043e0aae3a624066252a77955..7b2dabe78f1b3915fff3310820b0bb96b7f1609f 100755 (executable)
@@ -32,21 +32,15 @@ e() {
 }
 
 check-idle() {
-  type -p xprintidle &>/dev/null || return 0
+  type -p xscreensaver-command &>/dev/null || return 0
   export DISPLAY=:0
-  # a hours, a movie could run that long.
-  idle_limit=$((1000 * 60 * 60 * 2))
-  idle_time=$idle_limit
-  while read -r user; do
-    new_idle_time=$(sudo -u $user xprintidle 2>/dev/null) ||:
-    if [[ $new_idle_time && $new_idle_time -lt $idle_time ]]; then
-      idle_time=$new_idle_time
+  locked=false
+  if lock_info=$(xscreensaver-command -timer); then
+    if [[ $lock_info != *non-blanked* ]]; then
+      locked=true
     fi
-  done < <(users | tr " " "\n" | sort -u)
-  if (( idle_time < idle_limit )); then
-    idle=false
   else
-    idle=true
+    locked=true
   fi
 }
 
@@ -107,7 +101,6 @@ readonly check dryrun force stats
 
 
 main() {
-  idle=true
   if ! $force; then
     check-idle
     if ! $check; then
@@ -115,7 +108,7 @@ main() {
       max_min=300
       # When the cron kicks in, we may not be idle (physically sleeping) yet, so
       # wait.
-      while ! $idle && (( min < max_min )); do
+      while ! $locked && (( min < max_min )); do
         min=$(( min + 1 ))
         sleep 60
         check-idle
@@ -161,7 +154,7 @@ EOF
     #### end look for diff in stats, eg: increasing error count ####
 
     if $check; then
-      if ! $idle; then
+      if ! $locked; then
         if $dryrun; then
           echo "$0: not idle. if this wasnt a dry run, btrfs scrub cancel $mnt"
         else
index 56a251fb9be01e1e1cd1524d0a173cc7751040db..5c135c437f43443a5dc59297296128fb24617fbc 100755 (executable)
--- a/conflink
+++ b/conflink
@@ -104,7 +104,6 @@ subdir-link-r() {
 
 common-file-setup() {
   local dir fs x f reload_systemd
-  local -a reload_services
   local -a restart_services
   reload_systemd=false
   # note, i ran chmod -R g-s on the filesystem dirs
@@ -234,27 +233,14 @@ case $user in
     if [[ -e /var/lib/znc ]] && getent group znc; then
       s chown -R znc:znc /var/lib/znc
     fi
-    for f in /etc/prometheus-{,export-}htpasswd; do
-      if [[ -e $f ]]; then
-        # note: this is duplicative of the file's own permissions
-        s chmod 640 $f
-        if getent passwd www-data &>/dev/null; then
-          s chown root:www-data $f
-        fi
-      fi
-    done
-    f=/etc/prometheus-pass
-    if [[ -e $f ]]; then
-      # note: this is duplicative of the file's own permissions
-      s chmod 640 $f
-      if getent passwd prometheus &>/dev/null; then
-        s chown root:prometheus $f
-      fi
+    if getent passwd prometheus &>/dev/null; then
+      s rsync -clpgoDiSAX --chmod=Dg-s --chown=root:prometheus /p/c/user-specific/prometheus/prometheus-pass /etc
+    fi
+    if getent passwd www-data &>/dev/null; then
+      s rsync -clpgoDiSAX --chmod=Dg-s --chown=root:www-data /p/c/user-specific/prometheus-web/prometheus-htpasswd /etc
     fi
     f=/etc/nagios4/htdigest.users
     if [[ -e $f ]]; then
-      # note: this is duplicative of the file's own permissions
-      s chmod 640 $f /etc/prometheus-pass
       if getent passwd nagios &>/dev/null; then
         s chown nagios:www-data $f
       fi
index a9ab55a1e2ce3fd602960cdf9f543598ee9bcf3f..6b86c122a734fc0fb6cc4c25a424c07e9f9443b5 100755 (executable)
@@ -886,10 +886,12 @@ esac
 
 case $HOSTNAME in
   bk)
+    pi icecast2
+    # todo, save the config
     /etc/cron.daily/stream-cert
     web-conf -c /etc/cert-live.fsf.org -p 443 -f 8000 apache2 live.fsf.org
     ;;
-  esac
+esac
 
 ###### end website setup
 
@@ -1957,6 +1959,10 @@ sgo dynamicipupdate
 if grep -xFq $HOSTNAME /a/bin/ds/machine_specific/btrbk.hosts; then
   sgo btrbk.timer
 fi
+if [[ $HOSTNAME == kd ]]; then
+  sgo btrbk-spread.timer
+fi
+
 # note: to see when it was last run,
 # ser list-timers
 
diff --git a/filesystem/usr/share/gitweb/gitweb.cgi b/filesystem/usr/share/gitweb/gitweb.cgi
deleted file mode 100755 (executable)
index ea4250f..0000000
+++ /dev/null
@@ -1,8418 +0,0 @@
-#!/usr/bin/perl
-
-# gitweb - simple web interface to track changes in git repositories
-#
-# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
-# (C) 2005, Christian Gierke
-#
-# This program is licensed under the GPLv2
-
-use 5.008;
-use strict;
-use warnings;
-use CGI qw(:standard :escapeHTML -nosticky);
-use CGI::Util qw(unescape);
-use CGI::Carp qw(fatalsToBrowser set_message);
-use Encode;
-use Fcntl ':mode';
-use File::Find qw();
-use File::Basename qw(basename);
-use Time::HiRes qw(gettimeofday tv_interval);
-binmode STDOUT, ':utf8';
-
-if (!defined($CGI::VERSION) || $CGI::VERSION < 4.08) {
-       eval 'sub CGI::multi_param { CGI::param(@_) }'
-}
-
-our $t0 = [ gettimeofday() ];
-our $number_of_git_cmds = 0;
-
-BEGIN {
-       CGI->compile() if $ENV{'MOD_PERL'};
-}
-
-our $version = "2.8.1";
-
-our ($my_url, $my_uri, $base_url, $path_info, $home_link);
-sub evaluate_uri {
-       our $cgi;
-
-       our $my_url = $cgi->url();
-       our $my_uri = $cgi->url(-absolute => 1);
-
-       # Base URL for relative URLs in gitweb ($logo, $favicon, ...),
-       # needed and used only for URLs with nonempty PATH_INFO
-       our $base_url = $my_url;
-
-       # When the script is used as DirectoryIndex, the URL does not contain the name
-       # of the script file itself, and $cgi->url() fails to strip PATH_INFO, so we
-       # have to do it ourselves. We make $path_info global because it's also used
-       # later on.
-       #
-       # Another issue with the script being the DirectoryIndex is that the resulting
-       # $my_url data is not the full script URL: this is good, because we want
-       # generated links to keep implying the script name if it wasn't explicitly
-       # indicated in the URL we're handling, but it means that $my_url cannot be used
-       # as base URL.
-       # Therefore, if we needed to strip PATH_INFO, then we know that we have
-       # to build the base URL ourselves:
-       our $path_info = decode_utf8($ENV{"PATH_INFO"});
-       if ($path_info) {
-               # $path_info has already been URL-decoded by the web server, but
-               # $my_url and $my_uri have not. URL-decode them so we can properly
-               # strip $path_info.
-               $my_url = unescape($my_url);
-               $my_uri = unescape($my_uri);
-               if ($my_url =~ s,\Q$path_info\E$,, &&
-                   $my_uri =~ s,\Q$path_info\E$,, &&
-                   defined $ENV{'SCRIPT_NAME'}) {
-                       $base_url = $cgi->url(-base => 1) . $ENV{'SCRIPT_NAME'};
-               }
-       }
-
-       # target of the home link on top of all pages
-       our $home_link = $my_uri || "/";
-}
-
-# core git executable to use
-# this can just be "git" if your webserver has a sensible PATH
-our $GIT = "/usr/bin/git";
-
-# absolute fs-path which will be prepended to the project path
-#our $projectroot = "/pub/scm";
-our $projectroot = "/pub/git";
-
-# fs traversing limit for getting project list
-# the number is relative to the projectroot
-our $project_maxdepth = 2007;
-
-# string of the home link on top of all pages
-our $home_link_str = "projects";
-
-# extra breadcrumbs preceding the home link
-our @extra_breadcrumbs = ();
-
-# name of your site or organization to appear in page titles
-# replace this with something more descriptive for clearer bookmarks
-our $site_name = ""
-                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
-
-# html snippet to include in the <head> section of each page
-our $site_html_head_string = "";
-# filename of html text to include at top of each page
-our $site_header = "";
-# html text to include at home page
-our $home_text = "indextext.html";
-# filename of html text to include at bottom of each page
-our $site_footer = "";
-
-# URI of stylesheets
-our @stylesheets = ("static/gitweb.css");
-# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
-our $stylesheet = undef;
-# URI of GIT logo (72x27 size)
-our $logo = "static/git-logo.png";
-# URI of GIT favicon, assumed to be image/png type
-our $favicon = "static/git-favicon.png";
-# URI of gitweb.js (JavaScript code for gitweb)
-our $javascript = "static/gitweb.js";
-
-# URI and label (title) of GIT logo link
-#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
-#our $logo_label = "git documentation";
-our $logo_url = "http://git-scm.com/";
-our $logo_label = "git homepage";
-
-# source of projects list
-our $projects_list = "";
-
-# the width (in characters) of the projects list "Description" column
-our $projects_list_description_width = 25;
-
-# group projects by category on the projects list
-# (enabled if this variable evaluates to true)
-our $projects_list_group_categories = 0;
-
-# default category if none specified
-# (leave the empty string for no category)
-our $project_list_default_category = "";
-
-# default order of projects list
-# valid values are none, project, descr, owner, and age
-our $default_projects_order = "project";
-
-# show repository only if this file exists
-# (only effective if this variable evaluates to true)
-our $export_ok = "";
-
-# don't generate age column on the projects list page
-our $omit_age_column = 0;
-
-# don't generate information about owners of repositories
-our $omit_owner=0;
-
-# show repository only if this subroutine returns true
-# when given the path to the project, for example:
-#    sub { return -e "$_[0]/git-daemon-export-ok"; }
-our $export_auth_hook = undef;
-
-# only allow viewing of repositories also shown on the overview page
-our $strict_export = "";
-
-# list of git base URLs used for URL to where fetch project from,
-# i.e. full URL is "$git_base_url/$project"
-our @git_base_url_list = grep { $_ ne '' } ("");
-
-# default blob_plain mimetype and default charset for text/plain blob
-our $default_blob_plain_mimetype = 'text/plain';
-our $default_text_plain_charset  = undef;
-
-# file to use for guessing MIME types before trying /etc/mime.types
-# (relative to the current git repository)
-our $mimetypes_file = undef;
-
-# assume this charset if line contains non-UTF-8 characters;
-# it should be valid encoding (see Encoding::Supported(3pm) for list),
-# for which encoding all byte sequences are valid, for example
-# 'iso-8859-1' aka 'latin1' (it is decoded without checking, so it
-# could be even 'utf-8' for the old behavior)
-our $fallback_encoding = 'latin1';
-
-# rename detection options for git-diff and git-diff-tree
-# - default is '-M', with the cost proportional to
-#   (number of removed files) * (number of new files).
-# - more costly is '-C' (which implies '-M'), with the cost proportional to
-#   (number of changed files + number of removed files) * (number of new files)
-# - even more costly is '-C', '--find-copies-harder' with cost
-#   (number of files in the original tree) * (number of new files)
-# - one might want to include '-B' option, e.g. '-B', '-M'
-our @diff_opts = ('-M'); # taken from git_commit
-
-# Disables features that would allow repository owners to inject script into
-# the gitweb domain.
-our $prevent_xss = 0;
-
-# Path to the highlight executable to use (must be the one from
-# http://www.andre-simon.de due to assumptions about parameters and output).
-# Useful if highlight is not installed on your webserver's PATH.
-# [Default: highlight]
-our $highlight_bin = "highlight";
-
-# information about snapshot formats that gitweb is capable of serving
-our %known_snapshot_formats = (
-       # name => {
-       #       'display' => display name,
-       #       'type' => mime type,
-       #       'suffix' => filename suffix,
-       #       'format' => --format for git-archive,
-       #       'compressor' => [compressor command and arguments]
-       #                       (array reference, optional)
-       #       'disabled' => boolean (optional)}
-       #
-       'tgz' => {
-               'display' => 'tar.gz',
-               'type' => 'application/x-gzip',
-               'suffix' => '.tar.gz',
-               'format' => 'tar',
-               'compressor' => ['gzip', '-n']},
-
-       'tbz2' => {
-               'display' => 'tar.bz2',
-               'type' => 'application/x-bzip2',
-               'suffix' => '.tar.bz2',
-               'format' => 'tar',
-               'compressor' => ['bzip2']},
-
-       'txz' => {
-               'display' => 'tar.xz',
-               'type' => 'application/x-xz',
-               'suffix' => '.tar.xz',
-               'format' => 'tar',
-               'compressor' => ['xz'],
-               'disabled' => 1},
-
-       'zip' => {
-               'display' => 'zip',
-               'type' => 'application/x-zip',
-               'suffix' => '.zip',
-               'format' => 'zip'},
-);
-
-# Aliases so we understand old gitweb.snapshot values in repository
-# configuration.
-our %known_snapshot_format_aliases = (
-       'gzip'  => 'tgz',
-       'bzip2' => 'tbz2',
-       'xz'    => 'txz',
-
-       # backward compatibility: legacy gitweb config support
-       'x-gzip' => undef, 'gz' => undef,
-       'x-bzip2' => undef, 'bz2' => undef,
-       'x-zip' => undef, '' => undef,
-);
-
-# Pixel sizes for icons and avatars. If the default font sizes or lineheights
-# are changed, it may be appropriate to change these values too via
-# $GITWEB_CONFIG.
-our %avatar_size = (
-       'default' => 16,
-       'double'  => 32
-);
-
-# Used to set the maximum load that we will still respond to gitweb queries.
-# If server load exceed this value then return "503 server busy" error.
-# If gitweb cannot determined server load, it is taken to be 0.
-# Leave it undefined (or set to 'undef') to turn off load checking.
-our $maxload = 300;
-
-# configuration for 'highlight' (http://www.andre-simon.de/)
-# match by basename
-our %highlight_basename = (
-       #'Program' => 'py',
-       #'Library' => 'py',
-       'SConstruct' => 'py', # SCons equivalent of Makefile
-       'Makefile' => 'make',
-);
-# match by extension
-our %highlight_ext = (
-       # main extensions, defining name of syntax;
-       # see files in /usr/share/highlight/langDefs/ directory
-       (map { $_ => $_ } qw(py rb java css js tex bib xml awk bat ini spec tcl sql)),
-       # alternate extensions, see /etc/highlight/filetypes.conf
-       (map { $_ => 'c'   } qw(c h)),
-       (map { $_ => 'sh'  } qw(sh bash zsh ksh)),
-       (map { $_ => 'cpp' } qw(cpp cxx c++ cc)),
-       (map { $_ => 'php' } qw(php php3 php4 php5 phps)),
-       (map { $_ => 'pl'  } qw(pl perl pm)), # perhaps also 'cgi'
-       (map { $_ => 'make'} qw(make mak mk)),
-       (map { $_ => 'xml' } qw(xml xhtml html htm)),
-);
-
-# You define site-wide feature defaults here; override them with
-# $GITWEB_CONFIG as necessary.
-our %feature = (
-       # feature => {
-       #       'sub' => feature-sub (subroutine),
-       #       'override' => allow-override (boolean),
-       #       'default' => [ default options...] (array reference)}
-       #
-       # if feature is overridable (it means that allow-override has true value),
-       # then feature-sub will be called with default options as parameters;
-       # return value of feature-sub indicates if to enable specified feature
-       #
-       # if there is no 'sub' key (no feature-sub), then feature cannot be
-       # overridden
-       #
-       # use gitweb_get_feature(<feature>) to retrieve the <feature> value
-       # (an array) or gitweb_check_feature(<feature>) to check if <feature>
-       # is enabled
-
-       # Enable the 'blame' blob view, showing the last commit that modified
-       # each line in the file. This can be very CPU-intensive.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'blame'}{'default'} = [1];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'blame'}{'override'} = 1;
-       # and in project config gitweb.blame = 0|1;
-       'blame' => {
-               'sub' => sub { feature_bool('blame', @_) },
-               'override' => 0,
-               'default' => [0]},
-
-       # Enable the 'snapshot' link, providing a compressed archive of any
-       # tree. This can potentially generate high traffic if you have large
-       # project.
-
-       # Value is a list of formats defined in %known_snapshot_formats that
-       # you wish to offer.
-       # To disable system wide have in $GITWEB_CONFIG
-       # $feature{'snapshot'}{'default'} = [];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'snapshot'}{'override'} = 1;
-       # and in project config, a comma-separated list of formats or "none"
-       # to disable.  Example: gitweb.snapshot = tbz2,zip;
-       'snapshot' => {
-               'sub' => \&feature_snapshot,
-               'override' => 0,
-               'default' => ['tgz']},
-
-       # Enable text search, which will list the commits which match author,
-       # committer or commit text to a given string.  Enabled by default.
-       # Project specific override is not supported.
-       #
-       # Note that this controls all search features, which means that if
-       # it is disabled, then 'grep' and 'pickaxe' search would also be
-       # disabled.
-       'search' => {
-               'override' => 0,
-               'default' => [1]},
-
-       # Enable grep search, which will list the files in currently selected
-       # tree containing the given string. Enabled by default. This can be
-       # potentially CPU-intensive, of course.
-       # Note that you need to have 'search' feature enabled too.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'grep'}{'default'} = [1];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'grep'}{'override'} = 1;
-       # and in project config gitweb.grep = 0|1;
-       'grep' => {
-               'sub' => sub { feature_bool('grep', @_) },
-               'override' => 0,
-               'default' => [1]},
-
-       # Enable the pickaxe search, which will list the commits that modified
-       # a given string in a file. This can be practical and quite faster
-       # alternative to 'blame', but still potentially CPU-intensive.
-       # Note that you need to have 'search' feature enabled too.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'pickaxe'}{'default'} = [1];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'pickaxe'}{'override'} = 1;
-       # and in project config gitweb.pickaxe = 0|1;
-       'pickaxe' => {
-               'sub' => sub { feature_bool('pickaxe', @_) },
-               'override' => 0,
-               'default' => [1]},
-
-       # Enable showing size of blobs in a 'tree' view, in a separate
-       # column, similar to what 'ls -l' does.  This cost a bit of IO.
-
-       # To disable system wide have in $GITWEB_CONFIG
-       # $feature{'show-sizes'}{'default'} = [0];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'show-sizes'}{'override'} = 1;
-       # and in project config gitweb.showsizes = 0|1;
-       'show-sizes' => {
-               'sub' => sub { feature_bool('showsizes', @_) },
-               'override' => 0,
-               'default' => [1]},
-
-       # Make gitweb use an alternative format of the URLs which can be
-       # more readable and natural-looking: project name is embedded
-       # directly in the path and the query string contains other
-       # auxiliary information. All gitweb installations recognize
-       # URL in either format; this configures in which formats gitweb
-       # generates links.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'pathinfo'}{'default'} = [1];
-       # Project specific override is not supported.
-
-       # Note that you will need to change the default location of CSS,
-       # favicon, logo and possibly other files to an absolute URL. Also,
-       # if gitweb.cgi serves as your indexfile, you will need to force
-       # $my_uri to contain the script name in your $GITWEB_CONFIG.
-       'pathinfo' => {
-               'override' => 0,
-               'default' => [0]},
-
-       # Make gitweb consider projects in project root subdirectories
-       # to be forks of existing projects. Given project $projname.git,
-       # projects matching $projname/*.git will not be shown in the main
-       # projects list, instead a '+' mark will be added to $projname
-       # there and a 'forks' view will be enabled for the project, listing
-       # all the forks. If project list is taken from a file, forks have
-       # to be listed after the main project.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'forks'}{'default'} = [1];
-       # Project specific override is not supported.
-       'forks' => {
-               'override' => 0,
-               'default' => [0]},
-
-       # Insert custom links to the action bar of all project pages.
-       # This enables you mainly to link to third-party scripts integrating
-       # into gitweb; e.g. git-browser for graphical history representation
-       # or custom web-based repository administration interface.
-
-       # The 'default' value consists of a list of triplets in the form
-       # (label, link, position) where position is the label after which
-       # to insert the link and link is a format string where %n expands
-       # to the project name, %f to the project path within the filesystem,
-       # %h to the current hash (h gitweb parameter) and %b to the current
-       # hash base (hb gitweb parameter); %% expands to %.
-
-       # To enable system wide have in $GITWEB_CONFIG e.g.
-       # $feature{'actions'}{'default'} = [('graphiclog',
-       #       '/git-browser/by-commit.html?r=%n', 'summary')];
-       # Project specific override is not supported.
-       'actions' => {
-               'override' => 0,
-               'default' => []},
-
-       # Allow gitweb scan project content tags of project repository,
-       # and display the popular Web 2.0-ish "tag cloud" near the projects
-       # list.  Note that this is something COMPLETELY different from the
-       # normal Git tags.
-
-       # gitweb by itself can show existing tags, but it does not handle
-       # tagging itself; you need to do it externally, outside gitweb.
-       # The format is described in git_get_project_ctags() subroutine.
-       # You may want to install the HTML::TagCloud Perl module to get
-       # a pretty tag cloud instead of just a list of tags.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'ctags'}{'default'} = [1];
-       # Project specific override is not supported.
-
-       # In the future whether ctags editing is enabled might depend
-       # on the value, but using 1 should always mean no editing of ctags.
-       'ctags' => {
-               'override' => 0,
-               'default' => [0]},
-
-       # The maximum number of patches in a patchset generated in patch
-       # view. Set this to 0 or undef to disable patch view, or to a
-       # negative number to remove any limit.
-
-       # To disable system wide have in $GITWEB_CONFIG
-       # $feature{'patches'}{'default'} = [0];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'patches'}{'override'} = 1;
-       # and in project config gitweb.patches = 0|n;
-       # where n is the maximum number of patches allowed in a patchset.
-       'patches' => {
-               'sub' => \&feature_patches,
-               'override' => 0,
-               'default' => [16]},
-
-       # Avatar support. When this feature is enabled, views such as
-       # shortlog or commit will display an avatar associated with
-       # the email of the committer(s) and/or author(s).
-
-       # Currently available providers are gravatar and picon.
-       # If an unknown provider is specified, the feature is disabled.
-
-       # Gravatar depends on Digest::MD5.
-       # Picon currently relies on the indiana.edu database.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'avatar'}{'default'} = ['<provider>'];
-       # where <provider> is either gravatar or picon.
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'avatar'}{'override'} = 1;
-       # and in project config gitweb.avatar = <provider>;
-       'avatar' => {
-               'sub' => \&feature_avatar,
-               'override' => 0,
-               'default' => ['']},
-
-       # Enable displaying how much time and how many git commands
-       # it took to generate and display page.  Disabled by default.
-       # Project specific override is not supported.
-       'timed' => {
-               'override' => 0,
-               'default' => [0]},
-
-       # Enable turning some links into links to actions which require
-       # JavaScript to run (like 'blame_incremental').  Not enabled by
-       # default.  Project specific override is currently not supported.
-       'javascript-actions' => {
-               'override' => 0,
-               'default' => [0]},
-
-       # Enable and configure ability to change common timezone for dates
-       # in gitweb output via JavaScript.  Enabled by default.
-       # Project specific override is not supported.
-       'javascript-timezone' => {
-               'override' => 0,
-               'default' => [
-                       'local',     # default timezone: 'utc', 'local', or '(-|+)HHMM' format,
-                                    # or undef to turn off this feature
-                       'gitweb_tz', # name of cookie where to store selected timezone
-                       'datetime',  # CSS class used to mark up dates for manipulation
-               ]},
-
-       # Syntax highlighting support. This is based on Daniel Svensson's
-       # and Sham Chukoury's work in gitweb-xmms2.git.
-       # It requires the 'highlight' program present in $PATH,
-       # and therefore is disabled by default.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'highlight'}{'default'} = [1];
-
-       'highlight' => {
-               'sub' => sub { feature_bool('highlight', @_) },
-               'override' => 0,
-               'default' => [0]},
-
-       # Enable displaying of remote heads in the heads list
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'remote_heads'}{'default'} = [1];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'remote_heads'}{'override'} = 1;
-       # and in project config gitweb.remoteheads = 0|1;
-       'remote_heads' => {
-               'sub' => sub { feature_bool('remote_heads', @_) },
-               'override' => 0,
-               'default' => [0]},
-
-       # Enable showing branches under other refs in addition to heads
-
-       # To set system wide extra branch refs have in $GITWEB_CONFIG
-       # $feature{'extra-branch-refs'}{'default'} = ['dirs', 'of', 'choice'];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'extra-branch-refs'}{'override'} = 1;
-       # and in project config gitweb.extrabranchrefs = dirs of choice
-       # Every directory is separated with whitespace.
-
-       'extra-branch-refs' => {
-               'sub' => \&feature_extra_branch_refs,
-               'override' => 0,
-               'default' => []},
-);
-
-sub gitweb_get_feature {
-       my ($name) = @_;
-       return unless exists $feature{$name};
-       my ($sub, $override, @defaults) = (
-               $feature{$name}{'sub'},
-               $feature{$name}{'override'},
-               @{$feature{$name}{'default'}});
-       # project specific override is possible only if we have project
-       our $git_dir; # global variable, declared later
-       if (!$override || !defined $git_dir) {
-               return @defaults;
-       }
-       if (!defined $sub) {
-               warn "feature $name is not overridable";
-               return @defaults;
-       }
-       return $sub->(@defaults);
-}
-
-# A wrapper to check if a given feature is enabled.
-# With this, you can say
-#
-#   my $bool_feat = gitweb_check_feature('bool_feat');
-#   gitweb_check_feature('bool_feat') or somecode;
-#
-# instead of
-#
-#   my ($bool_feat) = gitweb_get_feature('bool_feat');
-#   (gitweb_get_feature('bool_feat'))[0] or somecode;
-#
-sub gitweb_check_feature {
-       return (gitweb_get_feature(@_))[0];
-}
-
-
-sub feature_bool {
-       my $key = shift;
-       my ($val) = git_get_project_config($key, '--bool');
-
-       if (!defined $val) {
-               return ($_[0]);
-       } elsif ($val eq 'true') {
-               return (1);
-       } elsif ($val eq 'false') {
-               return (0);
-       }
-}
-
-sub feature_snapshot {
-       my (@fmts) = @_;
-
-       my ($val) = git_get_project_config('snapshot');
-
-       if ($val) {
-               @fmts = ($val eq 'none' ? () : split /\s*[,\s]\s*/, $val);
-       }
-
-       return @fmts;
-}
-
-sub feature_patches {
-       my @val = (git_get_project_config('patches', '--int'));
-
-       if (@val) {
-               return @val;
-       }
-
-       return ($_[0]);
-}
-
-sub feature_avatar {
-       my @val = (git_get_project_config('avatar'));
-
-       return @val ? @val : @_;
-}
-
-sub feature_extra_branch_refs {
-       my (@branch_refs) = @_;
-       my $values = git_get_project_config('extrabranchrefs');
-
-       if ($values) {
-               $values = config_to_multi ($values);
-               @branch_refs = ();
-               foreach my $value (@{$values}) {
-                       push @branch_refs, split /\s+/, $value;
-               }
-       }
-
-       return @branch_refs;
-}
-
-# checking HEAD file with -e is fragile if the repository was
-# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
-# and then pruned.
-sub check_head_link {
-       my ($dir) = @_;
-       my $headfile = "$dir/HEAD";
-       return ((-e $headfile) ||
-               (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
-}
-
-sub check_export_ok {
-       my ($dir) = @_;
-       return (check_head_link($dir) &&
-               (!$export_ok || -e "$dir/$export_ok") &&
-               (!$export_auth_hook || $export_auth_hook->($dir)));
-}
-
-# process alternate names for backward compatibility
-# filter out unsupported (unknown) snapshot formats
-sub filter_snapshot_fmts {
-       my @fmts = @_;
-
-       @fmts = map {
-               exists $known_snapshot_format_aliases{$_} ?
-                      $known_snapshot_format_aliases{$_} : $_} @fmts;
-       @fmts = grep {
-               exists $known_snapshot_formats{$_} &&
-               !$known_snapshot_formats{$_}{'disabled'}} @fmts;
-}
-
-sub filter_and_validate_refs {
-       my @refs = @_;
-       my %unique_refs = ();
-
-       foreach my $ref (@refs) {
-               die_error(500, "Invalid ref '$ref' in 'extra-branch-refs' feature") unless (is_valid_ref_format($ref));
-               # 'heads' are added implicitly in get_branch_refs().
-               $unique_refs{$ref} = 1 if ($ref ne 'heads');
-       }
-       return sort keys %unique_refs;
-}
-
-# If it is set to code reference, it is code that it is to be run once per
-# request, allowing updating configurations that change with each request,
-# while running other code in config file only once.
-#
-# Otherwise, if it is false then gitweb would process config file only once;
-# if it is true then gitweb config would be run for each request.
-our $per_request_config = 1;
-
-# read and parse gitweb config file given by its parameter.
-# returns true on success, false on recoverable error, allowing
-# to chain this subroutine, using first file that exists.
-# dies on errors during parsing config file, as it is unrecoverable.
-sub read_config_file {
-       my $filename = shift;
-       return unless defined $filename;
-       # die if there are errors parsing config file
-       if (-e $filename) {
-               do $filename;
-               die $@ if $@;
-               return 1;
-       }
-       return;
-}
-
-our ($GITWEB_CONFIG, $GITWEB_CONFIG_SYSTEM, $GITWEB_CONFIG_COMMON);
-sub evaluate_gitweb_config {
-       our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "gitweb_config.perl";
-       our $GITWEB_CONFIG_SYSTEM = $ENV{'GITWEB_CONFIG_SYSTEM'} || "/etc/gitweb.conf";
-       our $GITWEB_CONFIG_COMMON = $ENV{'GITWEB_CONFIG_COMMON'} || "/etc/gitweb-common.conf";
-
-       # Protect against duplications of file names, to not read config twice.
-       # Only one of $GITWEB_CONFIG and $GITWEB_CONFIG_SYSTEM is used, so
-       # there possibility of duplication of filename there doesn't matter.
-       $GITWEB_CONFIG = ""        if ($GITWEB_CONFIG eq $GITWEB_CONFIG_COMMON);
-       $GITWEB_CONFIG_SYSTEM = "" if ($GITWEB_CONFIG_SYSTEM eq $GITWEB_CONFIG_COMMON);
-
-       # Common system-wide settings for convenience.
-       # Those settings can be ovverriden by GITWEB_CONFIG or GITWEB_CONFIG_SYSTEM.
-       read_config_file($GITWEB_CONFIG_COMMON);
-
-       # Use first config file that exists.  This means use the per-instance
-       # GITWEB_CONFIG if exists, otherwise use GITWEB_SYSTEM_CONFIG.
-       read_config_file($GITWEB_CONFIG) and return;
-       read_config_file($GITWEB_CONFIG_SYSTEM);
-}
-
-# Get loadavg of system, to compare against $maxload.
-# Currently it requires '/proc/loadavg' present to get loadavg;
-# if it is not present it returns 0, which means no load checking.
-sub get_loadavg {
-       if( -e '/proc/loadavg' ){
-               open my $fd, '<', '/proc/loadavg'
-                       or return 0;
-               my @load = split(/\s+/, scalar <$fd>);
-               close $fd;
-
-               # The first three columns measure CPU and IO utilization of the last one,
-               # five, and 10 minute periods.  The fourth column shows the number of
-               # currently running processes and the total number of processes in the m/n
-               # format.  The last column displays the last process ID used.
-               return $load[0] || 0;
-       }
-       # additional checks for load average should go here for things that don't export
-       # /proc/loadavg
-
-       return 0;
-}
-
-# version of the core git binary
-our $git_version;
-sub evaluate_git_version {
-       our $git_version = qx("$GIT" --version) =~ m/git version (.*)$/ ? $1 : "unknown";
-       $number_of_git_cmds++;
-}
-
-sub check_loadavg {
-       if (defined $maxload && get_loadavg() > $maxload) {
-               die_error(503, "The load average on the server is too high");
-       }
-}
-
-# ======================================================================
-# input validation and dispatch
-
-# input parameters can be collected from a variety of sources (presently, CGI
-# and PATH_INFO), so we define an %input_params hash that collects them all
-# together during validation: this allows subsequent uses (e.g. href()) to be
-# agnostic of the parameter origin
-
-our %input_params = ();
-
-# input parameters are stored with the long parameter name as key. This will
-# also be used in the href subroutine to convert parameters to their CGI
-# equivalent, and since the href() usage is the most frequent one, we store
-# the name -> CGI key mapping here, instead of the reverse.
-#
-# XXX: Warning: If you touch this, check the search form for updating,
-# too.
-
-our @cgi_param_mapping = (
-       project => "p",
-       action => "a",
-       file_name => "f",
-       file_parent => "fp",
-       hash => "h",
-       hash_parent => "hp",
-       hash_base => "hb",
-       hash_parent_base => "hpb",
-       page => "pg",
-       order => "o",
-       searchtext => "s",
-       searchtype => "st",
-       snapshot_format => "sf",
-       extra_options => "opt",
-       search_use_regexp => "sr",
-       ctag => "by_tag",
-       diff_style => "ds",
-       project_filter => "pf",
-       # this must be last entry (for manipulation from JavaScript)
-       javascript => "js"
-);
-our %cgi_param_mapping = @cgi_param_mapping;
-
-# we will also need to know the possible actions, for validation
-our %actions = (
-       "blame" => \&git_blame,
-       "blame_incremental" => \&git_blame_incremental,
-       "blame_data" => \&git_blame_data,
-       "blobdiff" => \&git_blobdiff,
-       "blobdiff_plain" => \&git_blobdiff_plain,
-       "blob" => \&git_blob,
-       "blob_plain" => \&git_blob_plain,
-       "commitdiff" => \&git_commitdiff,
-       "commitdiff_plain" => \&git_commitdiff_plain,
-       "commit" => \&git_commit,
-       "forks" => \&git_forks,
-       "heads" => \&git_heads,
-       "history" => \&git_history,
-       "log" => \&git_log,
-       "patch" => \&git_patch,
-       "patches" => \&git_patches,
-       "remotes" => \&git_remotes,
-       "rss" => \&git_rss,
-       "atom" => \&git_atom,
-       "search" => \&git_search,
-       "search_help" => \&git_search_help,
-       "shortlog" => \&git_shortlog,
-       "summary" => \&git_summary,
-       "tag" => \&git_tag,
-       "tags" => \&git_tags,
-       "tree" => \&git_tree,
-       "snapshot" => \&git_snapshot,
-       "object" => \&git_object,
-       # those below don't need $project
-       "opml" => \&git_opml,
-       "project_list" => \&git_project_list,
-       "project_index" => \&git_project_index,
-);
-
-# finally, we have the hash of allowed extra_options for the commands that
-# allow them
-our %allowed_options = (
-       "--no-merges" => [ qw(rss atom log shortlog history) ],
-);
-
-# fill %input_params with the CGI parameters. All values except for 'opt'
-# should be single values, but opt can be an array. We should probably
-# build an array of parameters that can be multi-valued, but since for the time
-# being it's only this one, we just single it out
-sub evaluate_query_params {
-       our $cgi;
-
-       while (my ($name, $symbol) = each %cgi_param_mapping) {
-               if ($symbol eq 'opt') {
-                       $input_params{$name} = [ map { decode_utf8($_) } $cgi->multi_param($symbol) ];
-               } else {
-                       $input_params{$name} = decode_utf8($cgi->param($symbol));
-               }
-       }
-}
-
-# now read PATH_INFO and update the parameter list for missing parameters
-sub evaluate_path_info {
-       return if defined $input_params{'project'};
-       return if !$path_info;
-       $path_info =~ s,^/+,,;
-       return if !$path_info;
-
-       # find which part of PATH_INFO is project
-       my $project = $path_info;
-       $project =~ s,/+$,,;
-       while ($project && !check_head_link("$projectroot/$project")) {
-               $project =~ s,/*[^/]*$,,;
-       }
-       return unless $project;
-       $input_params{'project'} = $project;
-
-       # do not change any parameters if an action is given using the query string
-       return if $input_params{'action'};
-       $path_info =~ s,^\Q$project\E/*,,;
-
-       # next, check if we have an action
-       my $action = $path_info;
-       $action =~ s,/.*$,,;
-       if (exists $actions{$action}) {
-               $path_info =~ s,^$action/*,,;
-               $input_params{'action'} = $action;
-       }
-
-       # list of actions that want hash_base instead of hash, but can have no
-       # pathname (f) parameter
-       my @wants_base = (
-               'tree',
-               'history',
-       );
-
-       # we want to catch, among others
-       # [$hash_parent_base[:$file_parent]..]$hash_parent[:$file_name]
-       my ($parentrefname, $parentpathname, $refname, $pathname) =
-               ($path_info =~ /^(?:(.+?)(?::(.+))?\.\.)?([^:]+?)?(?::(.+))?$/);
-
-       # first, analyze the 'current' part
-       if (defined $pathname) {
-               # we got "branch:filename" or "branch:dir/"
-               # we could use git_get_type(branch:pathname), but:
-               # - it needs $git_dir
-               # - it does a git() call
-               # - the convention of terminating directories with a slash
-               #   makes it superfluous
-               # - embedding the action in the PATH_INFO would make it even
-               #   more superfluous
-               $pathname =~ s,^/+,,;
-               if (!$pathname || substr($pathname, -1) eq "/") {
-                       $input_params{'action'} ||= "tree";
-                       $pathname =~ s,/$,,;
-               } else {
-                       # the default action depends on whether we had parent info
-                       # or not
-                       if ($parentrefname) {
-                               $input_params{'action'} ||= "blobdiff_plain";
-                       } else {
-                               $input_params{'action'} ||= "blob_plain";
-                       }
-               }
-               $input_params{'hash_base'} ||= $refname;
-               $input_params{'file_name'} ||= $pathname;
-       } elsif (defined $refname) {
-               # we got "branch". In this case we have to choose if we have to
-               # set hash or hash_base.
-               #
-               # Most of the actions without a pathname only want hash to be
-               # set, except for the ones specified in @wants_base that want
-               # hash_base instead. It should also be noted that hand-crafted
-               # links having 'history' as an action and no pathname or hash
-               # set will fail, but that happens regardless of PATH_INFO.
-               if (defined $parentrefname) {
-                       # if there is parent let the default be 'shortlog' action
-                       # (for http://git.example.com/repo.git/A..B links); if there
-                       # is no parent, dispatch will detect type of object and set
-                       # action appropriately if required (if action is not set)
-                       $input_params{'action'} ||= "shortlog";
-               }
-               if ($input_params{'action'} &&
-                   grep { $_ eq $input_params{'action'} } @wants_base) {
-                       $input_params{'hash_base'} ||= $refname;
-               } else {
-                       $input_params{'hash'} ||= $refname;
-               }
-       }
-
-       # next, handle the 'parent' part, if present
-       if (defined $parentrefname) {
-               # a missing pathspec defaults to the 'current' filename, allowing e.g.
-               # someproject/blobdiff/oldrev..newrev:/filename
-               if ($parentpathname) {
-                       $parentpathname =~ s,^/+,,;
-                       $parentpathname =~ s,/$,,;
-                       $input_params{'file_parent'} ||= $parentpathname;
-               } else {
-                       $input_params{'file_parent'} ||= $input_params{'file_name'};
-               }
-               # we assume that hash_parent_base is wanted if a path was specified,
-               # or if the action wants hash_base instead of hash
-               if (defined $input_params{'file_parent'} ||
-                       grep { $_ eq $input_params{'action'} } @wants_base) {
-                       $input_params{'hash_parent_base'} ||= $parentrefname;
-               } else {
-                       $input_params{'hash_parent'} ||= $parentrefname;
-               }
-       }
-
-       # for the snapshot action, we allow URLs in the form
-       # $project/snapshot/$hash.ext
-       # where .ext determines the snapshot and gets removed from the
-       # passed $refname to provide the $hash.
-       #
-       # To be able to tell that $refname includes the format extension, we
-       # require the following two conditions to be satisfied:
-       # - the hash input parameter MUST have been set from the $refname part
-       #   of the URL (i.e. they must be equal)
-       # - the snapshot format MUST NOT have been defined already (e.g. from
-       #   CGI parameter sf)
-       # It's also useless to try any matching unless $refname has a dot,
-       # so we check for that too
-       if (defined $input_params{'action'} &&
-               $input_params{'action'} eq 'snapshot' &&
-               defined $refname && index($refname, '.') != -1 &&
-               $refname eq $input_params{'hash'} &&
-               !defined $input_params{'snapshot_format'}) {
-               # We loop over the known snapshot formats, checking for
-               # extensions. Allowed extensions are both the defined suffix
-               # (which includes the initial dot already) and the snapshot
-               # format key itself, with a prepended dot
-               while (my ($fmt, $opt) = each %known_snapshot_formats) {
-                       my $hash = $refname;
-                       unless ($hash =~ s/(\Q$opt->{'suffix'}\E|\Q.$fmt\E)$//) {
-                               next;
-                       }
-                       my $sfx = $1;
-                       # a valid suffix was found, so set the snapshot format
-                       # and reset the hash parameter
-                       $input_params{'snapshot_format'} = $fmt;
-                       $input_params{'hash'} = $hash;
-                       # we also set the format suffix to the one requested
-                       # in the URL: this way a request for e.g. .tgz returns
-                       # a .tgz instead of a .tar.gz
-                       $known_snapshot_formats{$fmt}{'suffix'} = $sfx;
-                       last;
-               }
-       }
-}
-
-our ($action, $project, $file_name, $file_parent, $hash, $hash_parent, $hash_base,
-     $hash_parent_base, @extra_options, $page, $searchtype, $search_use_regexp,
-     $searchtext, $search_regexp, $project_filter);
-sub evaluate_and_validate_params {
-       our $action = $input_params{'action'};
-       if (defined $action) {
-               if (!is_valid_action($action)) {
-                       die_error(400, "Invalid action parameter");
-               }
-       }
-
-       # parameters which are pathnames
-       our $project = $input_params{'project'};
-       if (defined $project) {
-               if (!is_valid_project($project)) {
-                       undef $project;
-                       die_error(404, "No such project");
-               }
-       }
-
-       our $project_filter = $input_params{'project_filter'};
-       if (defined $project_filter) {
-               if (!is_valid_pathname($project_filter)) {
-                       die_error(404, "Invalid project_filter parameter");
-               }
-       }
-
-       our $file_name = $input_params{'file_name'};
-       if (defined $file_name) {
-               if (!is_valid_pathname($file_name)) {
-                       die_error(400, "Invalid file parameter");
-               }
-       }
-
-       our $file_parent = $input_params{'file_parent'};
-       if (defined $file_parent) {
-               if (!is_valid_pathname($file_parent)) {
-                       die_error(400, "Invalid file parent parameter");
-               }
-       }
-
-       # parameters which are refnames
-       our $hash = $input_params{'hash'};
-       if (defined $hash) {
-               if (!is_valid_refname($hash)) {
-                       die_error(400, "Invalid hash parameter");
-               }
-       }
-
-       our $hash_parent = $input_params{'hash_parent'};
-       if (defined $hash_parent) {
-               if (!is_valid_refname($hash_parent)) {
-                       die_error(400, "Invalid hash parent parameter");
-               }
-       }
-
-       our $hash_base = $input_params{'hash_base'};
-       if (defined $hash_base) {
-               if (!is_valid_refname($hash_base)) {
-                       die_error(400, "Invalid hash base parameter");
-               }
-       }
-
-       our @extra_options = @{$input_params{'extra_options'}};
-       # @extra_options is always defined, since it can only be (currently) set from
-       # CGI, and $cgi->param() returns the empty array in array context if the param
-       # is not set
-       foreach my $opt (@extra_options) {
-               if (not exists $allowed_options{$opt}) {
-                       die_error(400, "Invalid option parameter");
-               }
-               if (not grep(/^$action$/, @{$allowed_options{$opt}})) {
-                       die_error(400, "Invalid option parameter for this action");
-               }
-       }
-
-       our $hash_parent_base = $input_params{'hash_parent_base'};
-       if (defined $hash_parent_base) {
-               if (!is_valid_refname($hash_parent_base)) {
-                       die_error(400, "Invalid hash parent base parameter");
-               }
-       }
-
-       # other parameters
-       our $page = $input_params{'page'};
-       if (defined $page) {
-               if ($page =~ m/[^0-9]/) {
-                       die_error(400, "Invalid page parameter");
-               }
-       }
-
-       our $searchtype = $input_params{'searchtype'};
-       if (defined $searchtype) {
-               if ($searchtype =~ m/[^a-z]/) {
-                       die_error(400, "Invalid searchtype parameter");
-               }
-       }
-
-       our $search_use_regexp = $input_params{'search_use_regexp'};
-
-       our $searchtext = $input_params{'searchtext'};
-       our $search_regexp = undef;
-       if (defined $searchtext) {
-               if (length($searchtext) < 2) {
-                       die_error(403, "At least two characters are required for search parameter");
-               }
-               if ($search_use_regexp) {
-                       $search_regexp = $searchtext;
-                       if (!eval { qr/$search_regexp/; 1; }) {
-                               (my $error = $@) =~ s/ at \S+ line \d+.*\n?//;
-                               die_error(400, "Invalid search regexp '$search_regexp'",
-                                         esc_html($error));
-                       }
-               } else {
-                       $search_regexp = quotemeta $searchtext;
-               }
-       }
-}
-
-# path to the current git repository
-our $git_dir;
-sub evaluate_git_dir {
-       our $git_dir = "$projectroot/$project" if $project;
-}
-
-our (@snapshot_fmts, $git_avatar, @extra_branch_refs);
-sub configure_gitweb_features {
-       # list of supported snapshot formats
-       our @snapshot_fmts = gitweb_get_feature('snapshot');
-       @snapshot_fmts = filter_snapshot_fmts(@snapshot_fmts);
-
-       # check that the avatar feature is set to a known provider name,
-       # and for each provider check if the dependencies are satisfied.
-       # if the provider name is invalid or the dependencies are not met,
-       # reset $git_avatar to the empty string.
-       our ($git_avatar) = gitweb_get_feature('avatar');
-       if ($git_avatar eq 'gravatar') {
-               $git_avatar = '' unless (eval { require Digest::MD5; 1; });
-       } elsif ($git_avatar eq 'picon') {
-               # no dependencies
-       } else {
-               $git_avatar = '';
-       }
-
-       our @extra_branch_refs = gitweb_get_feature('extra-branch-refs');
-       @extra_branch_refs = filter_and_validate_refs (@extra_branch_refs);
-}
-
-sub get_branch_refs {
-       return ('heads', @extra_branch_refs);
-}
-
-# custom error handler: 'die <message>' is Internal Server Error
-sub handle_errors_html {
-       my $msg = shift; # it is already HTML escaped
-
-       # to avoid infinite loop where error occurs in die_error,
-       # change handler to default handler, disabling handle_errors_html
-       set_message("Error occurred when inside die_error:\n$msg");
-
-       # you cannot jump out of die_error when called as error handler;
-       # the subroutine set via CGI::Carp::set_message is called _after_
-       # HTTP headers are already written, so it cannot write them itself
-       die_error(undef, undef, $msg, -error_handler => 1, -no_http_header => 1);
-}
-set_message(\&handle_errors_html);
-
-# dispatch
-sub dispatch {
-       if (!defined $action) {
-               if (defined $hash) {
-                       $action = git_get_type($hash);
-                       $action or die_error(404, "Object does not exist");
-               } elsif (defined $hash_base && defined $file_name) {
-                       $action = git_get_type("$hash_base:$file_name");
-                       $action or die_error(404, "File or directory does not exist");
-               } elsif (defined $project) {
-                       $action = 'summary';
-               } else {
-                       $action = 'project_list';
-               }
-       }
-       if (!defined($actions{$action})) {
-               die_error(400, "Unknown action");
-       }
-       if ($action !~ m/^(?:opml|project_list|project_index)$/ &&
-           !$project) {
-               die_error(400, "Project needed");
-       }
-       $actions{$action}->();
-}
-
-sub reset_timer {
-       our $t0 = [ gettimeofday() ]
-               if defined $t0;
-       our $number_of_git_cmds = 0;
-}
-
-our $first_request = 1;
-sub run_request {
-       reset_timer();
-
-       evaluate_uri();
-       if ($first_request) {
-               evaluate_gitweb_config();
-               evaluate_git_version();
-       }
-       if ($per_request_config) {
-               if (ref($per_request_config) eq 'CODE') {
-                       $per_request_config->();
-               } elsif (!$first_request) {
-                       evaluate_gitweb_config();
-               }
-       }
-       check_loadavg();
-
-       # $projectroot and $projects_list might be set in gitweb config file
-       $projects_list ||= $projectroot;
-
-       evaluate_query_params();
-       evaluate_path_info();
-       evaluate_and_validate_params();
-       evaluate_git_dir();
-
-       configure_gitweb_features();
-
-       dispatch();
-}
-
-our $is_last_request = sub { 1 };
-our ($pre_dispatch_hook, $post_dispatch_hook, $pre_listen_hook);
-our $CGI = 'CGI';
-our $cgi;
-sub configure_as_fcgi {
-       require CGI::Fast;
-       our $CGI = 'CGI::Fast';
-
-       my $request_number = 0;
-       # let each child service 100 requests
-       our $is_last_request = sub { ++$request_number > 100 };
-}
-sub evaluate_argv {
-       my $script_name = $ENV{'SCRIPT_NAME'} || $ENV{'SCRIPT_FILENAME'} || __FILE__;
-       configure_as_fcgi()
-               if $script_name =~ /\.fcgi$/;
-
-       return unless (@ARGV);
-
-       require Getopt::Long;
-       Getopt::Long::GetOptions(
-               'fastcgi|fcgi|f' => \&configure_as_fcgi,
-               'nproc|n=i' => sub {
-                       my ($arg, $val) = @_;
-                       return unless eval { require FCGI::ProcManager; 1; };
-                       my $proc_manager = FCGI::ProcManager->new({
-                               n_processes => $val,
-                       });
-                       our $pre_listen_hook    = sub { $proc_manager->pm_manage()        };
-                       our $pre_dispatch_hook  = sub { $proc_manager->pm_pre_dispatch()  };
-                       our $post_dispatch_hook = sub { $proc_manager->pm_post_dispatch() };
-               },
-       );
-}
-
-sub run {
-       evaluate_argv();
-
-       $first_request = 1;
-       $pre_listen_hook->()
-               if $pre_listen_hook;
-
- REQUEST:
-       while ($cgi = $CGI->new()) {
-               $pre_dispatch_hook->()
-                       if $pre_dispatch_hook;
-
-               run_request();
-
-               $post_dispatch_hook->()
-                       if $post_dispatch_hook;
-               $first_request = 0;
-
-               last REQUEST if ($is_last_request->());
-       }
-
- DONE_GITWEB:
-       1;
-}
-
-run();
-
-if (defined caller) {
-       # wrapped in a subroutine processing requests,
-       # e.g. mod_perl with ModPerl::Registry, or PSGI with Plack::App::WrapCGI
-       return;
-} else {
-       # pure CGI script, serving single request
-       exit;
-}
-
-## ======================================================================
-## action links
-
-# possible values of extra options
-# -full => 0|1      - use absolute/full URL ($my_uri/$my_url as base)
-# -replay => 1      - start from a current view (replay with modifications)
-# -path_info => 0|1 - don't use/use path_info URL (if possible)
-# -anchor => ANCHOR - add #ANCHOR to end of URL, implies -replay if used alone
-sub href {
-       my %params = @_;
-       # default is to use -absolute url() i.e. $my_uri
-       my $href = $params{-full} ? $my_url : $my_uri;
-
-       # implicit -replay, must be first of implicit params
-       $params{-replay} = 1 if (keys %params == 1 && $params{-anchor});
-
-       $params{'project'} = $project unless exists $params{'project'};
-
-       if ($params{-replay}) {
-               while (my ($name, $symbol) = each %cgi_param_mapping) {
-                       if (!exists $params{$name}) {
-                               $params{$name} = $input_params{$name};
-                       }
-               }
-       }
-
-       my $use_pathinfo = gitweb_check_feature('pathinfo');
-       if (defined $params{'project'} &&
-           (exists $params{-path_info} ? $params{-path_info} : $use_pathinfo)) {
-               # try to put as many parameters as possible in PATH_INFO:
-               #   - project name
-               #   - action
-               #   - hash_parent or hash_parent_base:/file_parent
-               #   - hash or hash_base:/filename
-               #   - the snapshot_format as an appropriate suffix
-
-               # When the script is the root DirectoryIndex for the domain,
-               # $href here would be something like http://gitweb.example.com/
-               # Thus, we strip any trailing / from $href, to spare us double
-               # slashes in the final URL
-               $href =~ s,/$,,;
-
-               # Then add the project name, if present
-               $href .= "/".esc_path_info($params{'project'});
-               delete $params{'project'};
-
-               # since we destructively absorb parameters, we keep this
-               # boolean that remembers if we're handling a snapshot
-               my $is_snapshot = $params{'action'} eq 'snapshot';
-
-               # Summary just uses the project path URL, any other action is
-               # added to the URL
-               if (defined $params{'action'}) {
-                       $href .= "/".esc_path_info($params{'action'})
-                               unless $params{'action'} eq 'summary';
-                       delete $params{'action'};
-               }
-
-               # Next, we put hash_parent_base:/file_parent..hash_base:/file_name,
-               # stripping nonexistent or useless pieces
-               $href .= "/" if ($params{'hash_base'} || $params{'hash_parent_base'}
-                       || $params{'hash_parent'} || $params{'hash'});
-               if (defined $params{'hash_base'}) {
-                       if (defined $params{'hash_parent_base'}) {
-                               $href .= esc_path_info($params{'hash_parent_base'});
-                               # skip the file_parent if it's the same as the file_name
-                               if (defined $params{'file_parent'}) {
-                                       if (defined $params{'file_name'} && $params{'file_parent'} eq $params{'file_name'}) {
-                                               delete $params{'file_parent'};
-                                       } elsif ($params{'file_parent'} !~ /\.\./) {
-                                               $href .= ":/".esc_path_info($params{'file_parent'});
-                                               delete $params{'file_parent'};
-                                       }
-                               }
-                               $href .= "..";
-                               delete $params{'hash_parent'};
-                               delete $params{'hash_parent_base'};
-                       } elsif (defined $params{'hash_parent'}) {
-                               $href .= esc_path_info($params{'hash_parent'}). "..";
-                               delete $params{'hash_parent'};
-                       }
-
-                       $href .= esc_path_info($params{'hash_base'});
-                       if (defined $params{'file_name'} && $params{'file_name'} !~ /\.\./) {
-                               $href .= ":/".esc_path_info($params{'file_name'});
-                               delete $params{'file_name'};
-                       }
-                       delete $params{'hash'};
-                       delete $params{'hash_base'};
-               } elsif (defined $params{'hash'}) {
-                       $href .= esc_path_info($params{'hash'});
-                       delete $params{'hash'};
-               }
-
-               # If the action was a snapshot, we can absorb the
-               # snapshot_format parameter too
-               if ($is_snapshot) {
-                       my $fmt = $params{'snapshot_format'};
-                       # snapshot_format should always be defined when href()
-                       # is called, but just in case some code forgets, we
-                       # fall back to the default
-                       $fmt ||= $snapshot_fmts[0];
-                       $href .= $known_snapshot_formats{$fmt}{'suffix'};
-                       delete $params{'snapshot_format'};
-               }
-       }
-
-       # now encode the parameters explicitly
-       my @result = ();
-       for (my $i = 0; $i < @cgi_param_mapping; $i += 2) {
-               my ($name, $symbol) = ($cgi_param_mapping[$i], $cgi_param_mapping[$i+1]);
-               if (defined $params{$name}) {
-                       if (ref($params{$name}) eq "ARRAY") {
-                               foreach my $par (@{$params{$name}}) {
-                                       push @result, $symbol . "=" . esc_param($par);
-                               }
-                       } else {
-                               push @result, $symbol . "=" . esc_param($params{$name});
-                       }
-               }
-       }
-       $href .= "?" . join(';', @result) if scalar @result;
-
-       # final transformation: trailing spaces must be escaped (URI-encoded)
-       $href =~ s/(\s+)$/CGI::escape($1)/e;
-
-       if ($params{-anchor}) {
-               $href .= "#".esc_param($params{-anchor});
-       }
-
-       return $href;
-}
-
-
-## ======================================================================
-## validation, quoting/unquoting and escaping
-
-sub is_valid_action {
-       my $input = shift;
-       return undef unless exists $actions{$input};
-       return 1;
-}
-
-sub is_valid_project {
-       my $input = shift;
-
-       return unless defined $input;
-       if (!is_valid_pathname($input) ||
-               !(-d "$projectroot/$input") ||
-               !check_export_ok("$projectroot/$input") ||
-               ($strict_export && !project_in_list($input))) {
-               return undef;
-       } else {
-               return 1;
-       }
-}
-
-sub is_valid_pathname {
-       my $input = shift;
-
-       return undef unless defined $input;
-       # no '.' or '..' as elements of path, i.e. no '.' or '..'
-       # at the beginning, at the end, and between slashes.
-       # also this catches doubled slashes
-       if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
-               return undef;
-       }
-       # no null characters
-       if ($input =~ m!\0!) {
-               return undef;
-       }
-       return 1;
-}
-
-sub is_valid_ref_format {
-       my $input = shift;
-
-       return undef unless defined $input;
-       # restrictions on ref name according to git-check-ref-format
-       if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
-               return undef;
-       }
-       return 1;
-}
-
-sub is_valid_refname {
-       my $input = shift;
-
-       return undef unless defined $input;
-       # textual hashes are O.K.
-       if ($input =~ m/^[0-9a-fA-F]{40}$/) {
-               return 1;
-       }
-       # it must be correct pathname
-       is_valid_pathname($input) or return undef;
-       # check git-check-ref-format restrictions
-       is_valid_ref_format($input) or return undef;
-       return 1;
-}
-
-# decode sequences of octets in utf8 into Perl's internal form,
-# which is utf-8 with utf8 flag set if needed.  gitweb writes out
-# in utf-8 thanks to "binmode STDOUT, ':utf8'" at beginning
-sub to_utf8 {
-       my $str = shift;
-       return undef unless defined $str;
-
-       if (utf8::is_utf8($str) || utf8::decode($str)) {
-               return $str;
-       } else {
-               return decode($fallback_encoding, $str, Encode::FB_DEFAULT);
-       }
-}
-
-# quote unsafe chars, but keep the slash, even when it's not
-# correct, but quoted slashes look too horrible in bookmarks
-sub esc_param {
-       my $str = shift;
-       return undef unless defined $str;
-       $str =~ s/([^A-Za-z0-9\-_.~()\/:@ ]+)/CGI::escape($1)/eg;
-       $str =~ s/ /\+/g;
-       return $str;
-}
-
-# the quoting rules for path_info fragment are slightly different
-sub esc_path_info {
-       my $str = shift;
-       return undef unless defined $str;
-
-       # path_info doesn't treat '+' as space (specially), but '?' must be escaped
-       $str =~ s/([^A-Za-z0-9\-_.~();\/;:@&= +]+)/CGI::escape($1)/eg;
-
-       return $str;
-}
-
-# quote unsafe chars in whole URL, so some characters cannot be quoted
-sub esc_url {
-       my $str = shift;
-       return undef unless defined $str;
-       $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&= ]+)/CGI::escape($1)/eg;
-       $str =~ s/ /\+/g;
-       return $str;
-}
-
-# quote unsafe characters in HTML attributes
-sub esc_attr {
-
-       # for XHTML conformance escaping '"' to '&quot;' is not enough
-       return esc_html(@_);
-}
-
-# replace invalid utf8 character with SUBSTITUTION sequence
-sub esc_html {
-       my $str = shift;
-       my %opts = @_;
-
-       return undef unless defined $str;
-
-       $str = to_utf8($str);
-       $str = $cgi->escapeHTML($str);
-       if ($opts{'-nbsp'}) {
-               $str =~ s/ /&nbsp;/g;
-       }
-       $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
-       return $str;
-}
-
-# quote control characters and escape filename to HTML
-sub esc_path {
-       my $str = shift;
-       my %opts = @_;
-
-       return undef unless defined $str;
-
-       $str = to_utf8($str);
-       $str = $cgi->escapeHTML($str);
-       if ($opts{'-nbsp'}) {
-               $str =~ s/ /&nbsp;/g;
-       }
-       $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
-       return $str;
-}
-
-# Sanitize for use in XHTML + application/xml+xhtm (valid XML 1.0)
-sub sanitize {
-       my $str = shift;
-
-       return undef unless defined $str;
-
-       $str = to_utf8($str);
-       $str =~ s|([[:cntrl:]])|(index("\t\n\r", $1) != -1 ? $1 : quot_cec($1))|eg;
-       return $str;
-}
-
-# Make control characters "printable", using character escape codes (CEC)
-sub quot_cec {
-       my $cntrl = shift;
-       my %opts = @_;
-       my %es = ( # character escape codes, aka escape sequences
-               "\t" => '\t',   # tab            (HT)
-               "\n" => '\n',   # line feed      (LF)
-               "\r" => '\r',   # carrige return (CR)
-               "\f" => '\f',   # form feed      (FF)
-               "\b" => '\b',   # backspace      (BS)
-               "\a" => '\a',   # alarm (bell)   (BEL)
-               "\e" => '\e',   # escape         (ESC)
-               "\013" => '\v', # vertical tab   (VT)
-               "\000" => '\0', # nul character  (NUL)
-       );
-       my $chr = ( (exists $es{$cntrl})
-                   ? $es{$cntrl}
-                   : sprintf('\%2x', ord($cntrl)) );
-       if ($opts{-nohtml}) {
-               return $chr;
-       } else {
-               return "<span class=\"cntrl\">$chr</span>";
-       }
-}
-
-# Alternatively use unicode control pictures codepoints,
-# Unicode "printable representation" (PR)
-sub quot_upr {
-       my $cntrl = shift;
-       my %opts = @_;
-
-       my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
-       if ($opts{-nohtml}) {
-               return $chr;
-       } else {
-               return "<span class=\"cntrl\">$chr</span>";
-       }
-}
-
-# git may return quoted and escaped filenames
-sub unquote {
-       my $str = shift;
-
-       sub unq {
-               my $seq = shift;
-               my %es = ( # character escape codes, aka escape sequences
-                       't' => "\t",   # tab            (HT, TAB)
-                       'n' => "\n",   # newline        (NL)
-                       'r' => "\r",   # return         (CR)
-                       'f' => "\f",   # form feed      (FF)
-                       'b' => "\b",   # backspace      (BS)
-                       'a' => "\a",   # alarm (bell)   (BEL)
-                       'e' => "\e",   # escape         (ESC)
-                       'v' => "\013", # vertical tab   (VT)
-               );
-
-               if ($seq =~ m/^[0-7]{1,3}$/) {
-                       # octal char sequence
-                       return chr(oct($seq));
-               } elsif (exists $es{$seq}) {
-                       # C escape sequence, aka character escape code
-                       return $es{$seq};
-               }
-               # quoted ordinary character
-               return $seq;
-       }
-
-       if ($str =~ m/^"(.*)"$/) {
-               # needs unquoting
-               $str = $1;
-               $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
-       }
-       return $str;
-}
-
-# escape tabs (convert tabs to spaces)
-sub untabify {
-       my $line = shift;
-
-       while ((my $pos = index($line, "\t")) != -1) {
-               if (my $count = (8 - ($pos % 8))) {
-                       my $spaces = ' ' x $count;
-                       $line =~ s/\t/$spaces/;
-               }
-       }
-
-       return $line;
-}
-
-sub project_in_list {
-       my $project = shift;
-       my @list = git_get_projects_list();
-       return @list && scalar(grep { $_->{'path'} eq $project } @list);
-}
-
-## ----------------------------------------------------------------------
-## HTML aware string manipulation
-
-# Try to chop given string on a word boundary between position
-# $len and $len+$add_len. If there is no word boundary there,
-# chop at $len+$add_len. Do not chop if chopped part plus ellipsis
-# (marking chopped part) would be longer than given string.
-sub chop_str {
-       my $str = shift;
-       my $len = shift;
-       my $add_len = shift || 10;
-       my $where = shift || 'right'; # 'left' | 'center' | 'right'
-
-       # Make sure perl knows it is utf8 encoded so we don't
-       # cut in the middle of a utf8 multibyte char.
-       $str = to_utf8($str);
-
-       # allow only $len chars, but don't cut a word if it would fit in $add_len
-       # if it doesn't fit, cut it if it's still longer than the dots we would add
-       # remove chopped character entities entirely
-
-       # when chopping in the middle, distribute $len into left and right part
-       # return early if chopping wouldn't make string shorter
-       if ($where eq 'center') {
-               return $str if ($len + 5 >= length($str)); # filler is length 5
-               $len = int($len/2);
-       } else {
-               return $str if ($len + 4 >= length($str)); # filler is length 4
-       }
-
-       # regexps: ending and beginning with word part up to $add_len
-       my $endre = qr/.{$len}\w{0,$add_len}/;
-       my $begre = qr/\w{0,$add_len}.{$len}/;
-
-       if ($where eq 'left') {
-               $str =~ m/^(.*?)($begre)$/;
-               my ($lead, $body) = ($1, $2);
-               if (length($lead) > 4) {
-                       $lead = " ...";
-               }
-               return "$lead$body";
-
-       } elsif ($where eq 'center') {
-               $str =~ m/^($endre)(.*)$/;
-               my ($left, $str)  = ($1, $2);
-               $str =~ m/^(.*?)($begre)$/;
-               my ($mid, $right) = ($1, $2);
-               if (length($mid) > 5) {
-                       $mid = " ... ";
-               }
-               return "$left$mid$right";
-
-       } else {
-               $str =~ m/^($endre)(.*)$/;
-               my $body = $1;
-               my $tail = $2;
-               if (length($tail) > 4) {
-                       $tail = "... ";
-               }
-               return "$body$tail";
-       }
-}
-
-# takes the same arguments as chop_str, but also wraps a <span> around the
-# result with a title attribute if it does get chopped. Additionally, the
-# string is HTML-escaped.
-sub chop_and_escape_str {
-       my ($str) = @_;
-
-       my $chopped = chop_str(@_);
-       $str = to_utf8($str);
-       if ($chopped eq $str) {
-               return esc_html($chopped);
-       } else {
-               $str =~ s/[[:cntrl:]]/?/g;
-               return $cgi->span({-title=>$str}, esc_html($chopped));
-       }
-}
-
-# Highlight selected fragments of string, using given CSS class,
-# and escape HTML.  It is assumed that fragments do not overlap.
-# Regions are passed as list of pairs (array references).
-#
-# Example: esc_html_hl_regions("foobar", "mark", [ 0, 3 ]) returns
-# '<span class="mark">foo</span>bar'
-sub esc_html_hl_regions {
-       my ($str, $css_class, @sel) = @_;
-       my %opts = grep { ref($_) ne 'ARRAY' } @sel;
-       @sel     = grep { ref($_) eq 'ARRAY' } @sel;
-       return esc_html($str, %opts) unless @sel;
-
-       my $out = '';
-       my $pos = 0;
-
-       for my $s (@sel) {
-               my ($begin, $end) = @$s;
-
-               # Don't create empty <span> elements.
-               next if $end <= $begin;
-
-               my $escaped = esc_html(substr($str, $begin, $end - $begin),
-                                      %opts);
-
-               $out .= esc_html(substr($str, $pos, $begin - $pos), %opts)
-                       if ($begin - $pos > 0);
-               $out .= $cgi->span({-class => $css_class}, $escaped);
-
-               $pos = $end;
-       }
-       $out .= esc_html(substr($str, $pos), %opts)
-               if ($pos < length($str));
-
-       return $out;
-}
-
-# return positions of beginning and end of each match
-sub matchpos_list {
-       my ($str, $regexp) = @_;
-       return unless (defined $str && defined $regexp);
-
-       my @matches;
-       while ($str =~ /$regexp/g) {
-               push @matches, [$-[0], $+[0]];
-       }
-       return @matches;
-}
-
-# highlight match (if any), and escape HTML
-sub esc_html_match_hl {
-       my ($str, $regexp) = @_;
-       return esc_html($str) unless defined $regexp;
-
-       my @matches = matchpos_list($str, $regexp);
-       return esc_html($str) unless @matches;
-
-       return esc_html_hl_regions($str, 'match', @matches);
-}
-
-
-# highlight match (if any) of shortened string, and escape HTML
-sub esc_html_match_hl_chopped {
-       my ($str, $chopped, $regexp) = @_;
-       return esc_html_match_hl($str, $regexp) unless defined $chopped;
-
-       my @matches = matchpos_list($str, $regexp);
-       return esc_html($chopped) unless @matches;
-
-       # filter matches so that we mark chopped string
-       my $tail = "... "; # see chop_str
-       unless ($chopped =~ s/\Q$tail\E$//) {
-               $tail = '';
-       }
-       my $chop_len = length($chopped);
-       my $tail_len = length($tail);
-       my @filtered;
-
-       for my $m (@matches) {
-               if ($m->[0] > $chop_len) {
-                       push @filtered, [ $chop_len, $chop_len + $tail_len ] if ($tail_len > 0);
-                       last;
-               } elsif ($m->[1] > $chop_len) {
-                       push @filtered, [ $m->[0], $chop_len + $tail_len ];
-                       last;
-               }
-               push @filtered, $m;
-       }
-
-       return esc_html_hl_regions($chopped . $tail, 'match', @filtered);
-}
-
-## ----------------------------------------------------------------------
-## functions returning short strings
-
-# CSS class for given age value (in seconds)
-sub age_class {
-       my $age = shift;
-
-       if (!defined $age) {
-               return "noage";
-       } elsif ($age < 60*60*2) {
-               return "age0";
-       } elsif ($age < 60*60*24*2) {
-               return "age1";
-       } else {
-               return "age2";
-       }
-}
-
-# convert age in seconds to "nn units ago" string
-sub age_string {
-       my $age = shift;
-       my $age_str;
-
-       if ($age > 60*60*24*365*2) {
-               $age_str = (int $age/60/60/24/365);
-               $age_str .= " years ago";
-       } elsif ($age > 60*60*24*(365/12)*2) {
-               $age_str = int $age/60/60/24/(365/12);
-               $age_str .= " months ago";
-       } elsif ($age > 60*60*24*7*2) {
-               $age_str = int $age/60/60/24/7;
-               $age_str .= " weeks ago";
-       } elsif ($age > 60*60*24*2) {
-               $age_str = int $age/60/60/24;
-               $age_str .= " days ago";
-       } elsif ($age > 60*60*2) {
-               $age_str = int $age/60/60;
-               $age_str .= " hours ago";
-       } elsif ($age > 60*2) {
-               $age_str = int $age/60;
-               $age_str .= " min ago";
-       } elsif ($age > 2) {
-               $age_str = int $age;
-               $age_str .= " sec ago";
-       } else {
-               $age_str .= " right now";
-       }
-       return $age_str;
-}
-
-use constant {
-       S_IFINVALID => 0030000,
-       S_IFGITLINK => 0160000,
-};
-
-# submodule/subproject, a commit object reference
-sub S_ISGITLINK {
-       my $mode = shift;
-
-       return (($mode & S_IFMT) == S_IFGITLINK)
-}
-
-# convert file mode in octal to symbolic file mode string
-sub mode_str {
-       my $mode = oct shift;
-
-       if (S_ISGITLINK($mode)) {
-               return 'm---------';
-       } elsif (S_ISDIR($mode & S_IFMT)) {
-               return 'drwxr-xr-x';
-       } elsif (S_ISLNK($mode)) {
-               return 'lrwxrwxrwx';
-       } elsif (S_ISREG($mode)) {
-               # git cares only about the executable bit
-               if ($mode & S_IXUSR) {
-                       return '-rwxr-xr-x';
-               } else {
-                       return '-rw-r--r--';
-               };
-       } else {
-               return '----------';
-       }
-}
-
-# convert file mode in octal to file type string
-sub file_type {
-       my $mode = shift;
-
-       if ($mode !~ m/^[0-7]+$/) {
-               return $mode;
-       } else {
-               $mode = oct $mode;
-       }
-
-       if (S_ISGITLINK($mode)) {
-               return "submodule";
-       } elsif (S_ISDIR($mode & S_IFMT)) {
-               return "directory";
-       } elsif (S_ISLNK($mode)) {
-               return "symlink";
-       } elsif (S_ISREG($mode)) {
-               return "file";
-       } else {
-               return "unknown";
-       }
-}
-
-# convert file mode in octal to file type description string
-sub file_type_long {
-       my $mode = shift;
-
-       if ($mode !~ m/^[0-7]+$/) {
-               return $mode;
-       } else {
-               $mode = oct $mode;
-       }
-
-       if (S_ISGITLINK($mode)) {
-               return "submodule";
-       } elsif (S_ISDIR($mode & S_IFMT)) {
-               return "directory";
-       } elsif (S_ISLNK($mode)) {
-               return "symlink";
-       } elsif (S_ISREG($mode)) {
-               if ($mode & S_IXUSR) {
-                       return "executable";
-               } else {
-                       return "file";
-               };
-       } else {
-               return "unknown";
-       }
-}
-
-
-## ----------------------------------------------------------------------
-## functions returning short HTML fragments, or transforming HTML fragments
-## which don't belong to other sections
-
-# format line of commit message.
-sub format_log_line_html {
-       my $line = shift;
-
-       $line = esc_html($line, -nbsp=>1);
-       $line =~ s{\b([0-9a-fA-F]{8,40})\b}{
-               $cgi->a({-href => href(action=>"object", hash=>$1),
-                                       -class => "text"}, $1);
-       }eg;
-
-       return $line;
-}
-
-# format marker of refs pointing to given object
-
-# the destination action is chosen based on object type and current context:
-# - for annotated tags, we choose the tag view unless it's the current view
-#   already, in which case we go to shortlog view
-# - for other refs, we keep the current view if we're in history, shortlog or
-#   log view, and select shortlog otherwise
-sub format_ref_marker {
-       my ($refs, $id) = @_;
-       my $markers = '';
-
-       if (defined $refs->{$id}) {
-               foreach my $ref (@{$refs->{$id}}) {
-                       # this code exploits the fact that non-lightweight tags are the
-                       # only indirect objects, and that they are the only objects for which
-                       # we want to use tag instead of shortlog as action
-                       my ($type, $name) = qw();
-                       my $indirect = ($ref =~ s/\^\{\}$//);
-                       # e.g. tags/v2.6.11 or heads/next
-                       if ($ref =~ m!^(.*?)s?/(.*)$!) {
-                               $type = $1;
-                               $name = $2;
-                       } else {
-                               $type = "ref";
-                               $name = $ref;
-                       }
-
-                       my $class = $type;
-                       $class .= " indirect" if $indirect;
-
-                       my $dest_action = "shortlog";
-
-                       if ($indirect) {
-                               $dest_action = "tag" unless $action eq "tag";
-                       } elsif ($action =~ /^(history|(short)?log)$/) {
-                               $dest_action = $action;
-                       }
-
-                       my $dest = "";
-                       $dest .= "refs/" unless $ref =~ m!^refs/!;
-                       $dest .= $ref;
-
-                       my $link = $cgi->a({
-                               -href => href(
-                                       action=>$dest_action,
-                                       hash=>$dest
-                               )}, $name);
-
-                       $markers .= " <span class=\"".esc_attr($class)."\" title=\"".esc_attr($ref)."\">" .
-                               $link . "</span>";
-               }
-       }
-
-       if ($markers) {
-               return ' <span class="refs">'. $markers . '</span>';
-       } else {
-               return "";
-       }
-}
-
-# format, perhaps shortened and with markers, title line
-sub format_subject_html {
-       my ($long, $short, $href, $extra) = @_;
-       $extra = '' unless defined($extra);
-
-       if (length($short) < length($long)) {
-               $long =~ s/[[:cntrl:]]/?/g;
-               return $cgi->a({-href => $href, -class => "list subject",
-                               -title => to_utf8($long)},
-                      esc_html($short)) . $extra;
-       } else {
-               return $cgi->a({-href => $href, -class => "list subject"},
-                      esc_html($long)) . $extra;
-       }
-}
-
-# Rather than recomputing the url for an email multiple times, we cache it
-# after the first hit. This gives a visible benefit in views where the avatar
-# for the same email is used repeatedly (e.g. shortlog).
-# The cache is shared by all avatar engines (currently gravatar only), which
-# are free to use it as preferred. Since only one avatar engine is used for any
-# given page, there's no risk for cache conflicts.
-our %avatar_cache = ();
-
-# Compute the picon url for a given email, by using the picon search service over at
-# http://www.cs.indiana.edu/picons/search.html
-sub picon_url {
-       my $email = lc shift;
-       if (!$avatar_cache{$email}) {
-               my ($user, $domain) = split('@', $email);
-               $avatar_cache{$email} =
-                       "//www.cs.indiana.edu/cgi-pub/kinzler/piconsearch.cgi/" .
-                       "$domain/$user/" .
-                       "users+domains+unknown/up/single";
-       }
-       return $avatar_cache{$email};
-}
-
-# Compute the gravatar url for a given email, if it's not in the cache already.
-# Gravatar stores only the part of the URL before the size, since that's the
-# one computationally more expensive. This also allows reuse of the cache for
-# different sizes (for this particular engine).
-sub gravatar_url {
-       my $email = lc shift;
-       my $size = shift;
-       $avatar_cache{$email} ||=
-               "//www.gravatar.com/avatar/" .
-                       Digest::MD5::md5_hex($email) . "?s=";
-       return $avatar_cache{$email} . $size;
-}
-
-# Insert an avatar for the given $email at the given $size if the feature
-# is enabled.
-sub git_get_avatar {
-       my ($email, %opts) = @_;
-       my $pre_white  = ($opts{-pad_before} ? "&nbsp;" : "");
-       my $post_white = ($opts{-pad_after}  ? "&nbsp;" : "");
-       $opts{-size} ||= 'default';
-       my $size = $avatar_size{$opts{-size}} || $avatar_size{'default'};
-       my $url = "";
-       if ($git_avatar eq 'gravatar') {
-               $url = gravatar_url($email, $size);
-       } elsif ($git_avatar eq 'picon') {
-               $url = picon_url($email);
-       }
-       # Other providers can be added by extending the if chain, defining $url
-       # as needed. If no variant puts something in $url, we assume avatars
-       # are completely disabled/unavailable.
-       if ($url) {
-               return $pre_white .
-                      "<img width=\"$size\" " .
-                           "class=\"avatar\" " .
-                           "src=\"".esc_url($url)."\" " .
-                           "alt=\"\" " .
-                      "/>" . $post_white;
-       } else {
-               return "";
-       }
-}
-
-sub format_search_author {
-       my ($author, $searchtype, $displaytext) = @_;
-       my $have_search = gitweb_check_feature('search');
-
-       if ($have_search) {
-               my $performed = "";
-               if ($searchtype eq 'author') {
-                       $performed = "authored";
-               } elsif ($searchtype eq 'committer') {
-                       $performed = "committed";
-               }
-
-               return $cgi->a({-href => href(action=>"search", hash=>$hash,
-                               searchtext=>$author,
-                               searchtype=>$searchtype), class=>"list",
-                               title=>"Search for commits $performed by $author"},
-                               $displaytext);
-
-       } else {
-               return $displaytext;
-       }
-}
-
-# format the author name of the given commit with the given tag
-# the author name is chopped and escaped according to the other
-# optional parameters (see chop_str).
-sub format_author_html {
-       my $tag = shift;
-       my $co = shift;
-       my $author = chop_and_escape_str($co->{'author_name'}, @_);
-       return "<$tag class=\"author\">" .
-              format_search_author($co->{'author_name'}, "author",
-                      git_get_avatar($co->{'author_email'}, -pad_after => 1) .
-                      $author) .
-              "</$tag>";
-}
-
-# format git diff header line, i.e. "diff --(git|combined|cc) ..."
-sub format_git_diff_header_line {
-       my $line = shift;
-       my $diffinfo = shift;
-       my ($from, $to) = @_;
-
-       if ($diffinfo->{'nparents'}) {
-               # combined diff
-               $line =~ s!^(diff (.*?) )"?.*$!$1!;
-               if ($to->{'href'}) {
-                       $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
-                                        esc_path($to->{'file'}));
-               } else { # file was deleted (no href)
-                       $line .= esc_path($to->{'file'});
-               }
-       } else {
-               # "ordinary" diff
-               $line =~ s!^(diff (.*?) )"?a/.*$!$1!;
-               if ($from->{'href'}) {
-                       $line .= $cgi->a({-href => $from->{'href'}, -class => "path"},
-                                        'a/' . esc_path($from->{'file'}));
-               } else { # file was added (no href)
-                       $line .= 'a/' . esc_path($from->{'file'});
-               }
-               $line .= ' ';
-               if ($to->{'href'}) {
-                       $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
-                                        'b/' . esc_path($to->{'file'}));
-               } else { # file was deleted
-                       $line .= 'b/' . esc_path($to->{'file'});
-               }
-       }
-
-       return "<div class=\"diff header\">$line</div>\n";
-}
-
-# format extended diff header line, before patch itself
-sub format_extended_diff_header_line {
-       my $line = shift;
-       my $diffinfo = shift;
-       my ($from, $to) = @_;
-
-       # match <path>
-       if ($line =~ s!^((copy|rename) from ).*$!$1! && $from->{'href'}) {
-               $line .= $cgi->a({-href=>$from->{'href'}, -class=>"path"},
-                                      esc_path($from->{'file'}));
-       }
-       if ($line =~ s!^((copy|rename) to ).*$!$1! && $to->{'href'}) {
-               $line .= $cgi->a({-href=>$to->{'href'}, -class=>"path"},
-                                esc_path($to->{'file'}));
-       }
-       # match single <mode>
-       if ($line =~ m/\s(\d{6})$/) {
-               $line .= '<span class="info"> (' .
-                        file_type_long($1) .
-                        ')</span>';
-       }
-       # match <hash>
-       if ($line =~ m/^index [0-9a-fA-F]{40},[0-9a-fA-F]{40}/) {
-               # can match only for combined diff
-               $line = 'index ';
-               for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
-                       if ($from->{'href'}[$i]) {
-                               $line .= $cgi->a({-href=>$from->{'href'}[$i],
-                                                 -class=>"hash"},
-                                                substr($diffinfo->{'from_id'}[$i],0,7));
-                       } else {
-                               $line .= '0' x 7;
-                       }
-                       # separator
-                       $line .= ',' if ($i < $diffinfo->{'nparents'} - 1);
-               }
-               $line .= '..';
-               if ($to->{'href'}) {
-                       $line .= $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
-                                        substr($diffinfo->{'to_id'},0,7));
-               } else {
-                       $line .= '0' x 7;
-               }
-
-       } elsif ($line =~ m/^index [0-9a-fA-F]{40}..[0-9a-fA-F]{40}/) {
-               # can match only for ordinary diff
-               my ($from_link, $to_link);
-               if ($from->{'href'}) {
-                       $from_link = $cgi->a({-href=>$from->{'href'}, -class=>"hash"},
-                                            substr($diffinfo->{'from_id'},0,7));
-               } else {
-                       $from_link = '0' x 7;
-               }
-               if ($to->{'href'}) {
-                       $to_link = $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
-                                          substr($diffinfo->{'to_id'},0,7));
-               } else {
-                       $to_link = '0' x 7;
-               }
-               my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
-               $line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
-       }
-
-       return $line . "<br/>\n";
-}
-
-# format from-file/to-file diff header
-sub format_diff_from_to_header {
-       my ($from_line, $to_line, $diffinfo, $from, $to, @parents) = @_;
-       my $line;
-       my $result = '';
-
-       $line = $from_line;
-       #assert($line =~ m/^---/) if DEBUG;
-       # no extra formatting for "^--- /dev/null"
-       if (! $diffinfo->{'nparents'}) {
-               # ordinary (single parent) diff
-               if ($line =~ m!^--- "?a/!) {
-                       if ($from->{'href'}) {
-                               $line = '--- a/' .
-                                       $cgi->a({-href=>$from->{'href'}, -class=>"path"},
-                                               esc_path($from->{'file'}));
-                       } else {
-                               $line = '--- a/' .
-                                       esc_path($from->{'file'});
-                       }
-               }
-               $result .= qq!<div class="diff from_file">$line</div>\n!;
-
-       } else {
-               # combined diff (merge commit)
-               for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
-                       if ($from->{'href'}[$i]) {
-                               $line = '--- ' .
-                                       $cgi->a({-href=>href(action=>"blobdiff",
-                                                            hash_parent=>$diffinfo->{'from_id'}[$i],
-                                                            hash_parent_base=>$parents[$i],
-                                                            file_parent=>$from->{'file'}[$i],
-                                                            hash=>$diffinfo->{'to_id'},
-                                                            hash_base=>$hash,
-                                                            file_name=>$to->{'file'}),
-                                                -class=>"path",
-                                                -title=>"diff" . ($i+1)},
-                                               $i+1) .
-                                       '/' .
-                                       $cgi->a({-href=>$from->{'href'}[$i], -class=>"path"},
-                                               esc_path($from->{'file'}[$i]));
-                       } else {
-                               $line = '--- /dev/null';
-                       }
-                       $result .= qq!<div class="diff from_file">$line</div>\n!;
-               }
-       }
-
-       $line = $to_line;
-       #assert($line =~ m/^\+\+\+/) if DEBUG;
-       # no extra formatting for "^+++ /dev/null"
-       if ($line =~ m!^\+\+\+ "?b/!) {
-               if ($to->{'href'}) {
-                       $line = '+++ b/' .
-                               $cgi->a({-href=>$to->{'href'}, -class=>"path"},
-                                       esc_path($to->{'file'}));
-               } else {
-                       $line = '+++ b/' .
-                               esc_path($to->{'file'});
-               }
-       }
-       $result .= qq!<div class="diff to_file">$line</div>\n!;
-
-       return $result;
-}
-
-# create note for patch simplified by combined diff
-sub format_diff_cc_simplified {
-       my ($diffinfo, @parents) = @_;
-       my $result = '';
-
-       $result .= "<div class=\"diff header\">" .
-                  "diff --cc ";
-       if (!is_deleted($diffinfo)) {
-               $result .= $cgi->a({-href => href(action=>"blob",
-                                                 hash_base=>$hash,
-                                                 hash=>$diffinfo->{'to_id'},
-                                                 file_name=>$diffinfo->{'to_file'}),
-                                   -class => "path"},
-                                  esc_path($diffinfo->{'to_file'}));
-       } else {
-               $result .= esc_path($diffinfo->{'to_file'});
-       }
-       $result .= "</div>\n" . # class="diff header"
-                  "<div class=\"diff nodifferences\">" .
-                  "Simple merge" .
-                  "</div>\n"; # class="diff nodifferences"
-
-       return $result;
-}
-
-sub diff_line_class {
-       my ($line, $from, $to) = @_;
-
-       # ordinary diff
-       my $num_sign = 1;
-       # combined diff
-       if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
-               $num_sign = scalar @{$from->{'href'}};
-       }
-
-       my @diff_line_classifier = (
-               { regexp => qr/^\@\@{$num_sign} /, class => "chunk_header"},
-               { regexp => qr/^\\/,               class => "incomplete"  },
-               { regexp => qr/^ {$num_sign}/,     class => "ctx" },
-               # classifier for context must come before classifier add/rem,
-               # or we would have to use more complicated regexp, for example
-               # qr/(?= {0,$m}\+)[+ ]{$num_sign}/, where $m = $num_sign - 1;
-               { regexp => qr/^[+ ]{$num_sign}/,   class => "add" },
-               { regexp => qr/^[- ]{$num_sign}/,   class => "rem" },
-       );
-       for my $clsfy (@diff_line_classifier) {
-               return $clsfy->{'class'}
-                       if ($line =~ $clsfy->{'regexp'});
-       }
-
-       # fallback
-       return "";
-}
-
-# assumes that $from and $to are defined and correctly filled,
-# and that $line holds a line of chunk header for unified diff
-sub format_unidiff_chunk_header {
-       my ($line, $from, $to) = @_;
-
-       my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
-               $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
-
-       $from_lines = 0 unless defined $from_lines;
-       $to_lines   = 0 unless defined $to_lines;
-
-       if ($from->{'href'}) {
-               $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
-                                    -class=>"list"}, $from_text);
-       }
-       if ($to->{'href'}) {
-               $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
-                                    -class=>"list"}, $to_text);
-       }
-       $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
-               "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
-       return $line;
-}
-
-# assumes that $from and $to are defined and correctly filled,
-# and that $line holds a line of chunk header for combined diff
-sub format_cc_diff_chunk_header {
-       my ($line, $from, $to) = @_;
-
-       my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
-       my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
-
-       @from_text = split(' ', $ranges);
-       for (my $i = 0; $i < @from_text; ++$i) {
-               ($from_start[$i], $from_nlines[$i]) =
-                       (split(',', substr($from_text[$i], 1)), 0);
-       }
-
-       $to_text   = pop @from_text;
-       $to_start  = pop @from_start;
-       $to_nlines = pop @from_nlines;
-
-       $line = "<span class=\"chunk_info\">$prefix ";
-       for (my $i = 0; $i < @from_text; ++$i) {
-               if ($from->{'href'}[$i]) {
-                       $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
-                                         -class=>"list"}, $from_text[$i]);
-               } else {
-                       $line .= $from_text[$i];
-               }
-               $line .= " ";
-       }
-       if ($to->{'href'}) {
-               $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
-                                 -class=>"list"}, $to_text);
-       } else {
-               $line .= $to_text;
-       }
-       $line .= " $prefix</span>" .
-                "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
-       return $line;
-}
-
-# process patch (diff) line (not to be used for diff headers),
-# returning HTML-formatted (but not wrapped) line.
-# If the line is passed as a reference, it is treated as HTML and not
-# esc_html()'ed.
-sub format_diff_line {
-       my ($line, $diff_class, $from, $to) = @_;
-
-       if (ref($line)) {
-               $line = $$line;
-       } else {
-               chomp $line;
-               $line = untabify($line);
-
-               if ($from && $to && $line =~ m/^\@{2} /) {
-                       $line = format_unidiff_chunk_header($line, $from, $to);
-               } elsif ($from && $to && $line =~ m/^\@{3}/) {
-                       $line = format_cc_diff_chunk_header($line, $from, $to);
-               } else {
-                       $line = esc_html($line, -nbsp=>1);
-               }
-       }
-
-       my $diff_classes = "diff";
-       $diff_classes .= " $diff_class" if ($diff_class);
-       $line = "<div class=\"$diff_classes\">$line</div>\n";
-
-       return $line;
-}
-
-# Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
-# linked.  Pass the hash of the tree/commit to snapshot.
-sub format_snapshot_links {
-       my ($hash) = @_;
-       my $num_fmts = @snapshot_fmts;
-       if ($num_fmts > 1) {
-               # A parenthesized list of links bearing format names.
-               # e.g. "snapshot (_tar.gz_ _zip_)"
-               return "snapshot (" . join(' ', map
-                       $cgi->a({
-                               -href => href(
-                                       action=>"snapshot",
-                                       hash=>$hash,
-                                       snapshot_format=>$_
-                               )
-                       }, $known_snapshot_formats{$_}{'display'})
-               , @snapshot_fmts) . ")";
-       } elsif ($num_fmts == 1) {
-               # A single "snapshot" link whose tooltip bears the format name.
-               # i.e. "_snapshot_"
-               my ($fmt) = @snapshot_fmts;
-               return
-                       $cgi->a({
-                               -href => href(
-                                       action=>"snapshot",
-                                       hash=>$hash,
-                                       snapshot_format=>$fmt
-                               ),
-                               -title => "in format: $known_snapshot_formats{$fmt}{'display'}"
-                       }, "snapshot");
-       } else { # $num_fmts == 0
-               return undef;
-       }
-}
-
-## ......................................................................
-## functions returning values to be passed, perhaps after some
-## transformation, to other functions; e.g. returning arguments to href()
-
-# returns hash to be passed to href to generate gitweb URL
-# in -title key it returns description of link
-sub get_feed_info {
-       my $format = shift || 'Atom';
-       my %res = (action => lc($format));
-       my $matched_ref = 0;
-
-       # feed links are possible only for project views
-       return unless (defined $project);
-       # some views should link to OPML, or to generic project feed,
-       # or don't have specific feed yet (so they should use generic)
-       return if (!$action || $action =~ /^(?:tags|heads|forks|tag|search)$/x);
-
-       my $branch = undef;
-       # branches refs uses 'refs/' + $get_branch_refs()[x] + '/' prefix
-       # (fullname) to differentiate from tag links; this also makes
-       # possible to detect branch links
-       for my $ref (get_branch_refs()) {
-               if ((defined $hash_base && $hash_base =~ m!^refs/\Q$ref\E/(.*)$!) ||
-                   (defined $hash      && $hash      =~ m!^refs/\Q$ref\E/(.*)$!)) {
-                       $branch = $1;
-                       $matched_ref = $ref;
-                       last;
-               }
-       }
-       # find log type for feed description (title)
-       my $type = 'log';
-       if (defined $file_name) {
-               $type  = "history of $file_name";
-               $type .= "/" if ($action eq 'tree');
-               $type .= " on '$branch'" if (defined $branch);
-       } else {
-               $type = "log of $branch" if (defined $branch);
-       }
-
-       $res{-title} = $type;
-       $res{'hash'} = (defined $branch ? "refs/$matched_ref/$branch" : undef);
-       $res{'file_name'} = $file_name;
-
-       return %res;
-}
-
-## ----------------------------------------------------------------------
-## git utility subroutines, invoking git commands
-
-# returns path to the core git executable and the --git-dir parameter as list
-sub git_cmd {
-       $number_of_git_cmds++;
-       return $GIT, '--git-dir='.$git_dir;
-}
-
-# quote the given arguments for passing them to the shell
-# quote_command("command", "arg 1", "arg with ' and ! characters")
-# => "'command' 'arg 1' 'arg with '\'' and '\!' characters'"
-# Try to avoid using this function wherever possible.
-sub quote_command {
-       return join(' ',
-               map { my $a = $_; $a =~ s/(['!])/'\\$1'/g; "'$a'" } @_ );
-}
-
-# get HEAD ref of given project as hash
-sub git_get_head_hash {
-       return git_get_full_hash(shift, 'HEAD');
-}
-
-sub git_get_full_hash {
-       return git_get_hash(@_);
-}
-
-sub git_get_short_hash {
-       return git_get_hash(@_, '--short=7');
-}
-
-sub git_get_hash {
-       my ($project, $hash, @options) = @_;
-       my $o_git_dir = $git_dir;
-       my $retval = undef;
-       $git_dir = "$projectroot/$project";
-       if (open my $fd, '-|', git_cmd(), 'rev-parse',
-           '--verify', '-q', @options, $hash) {
-               $retval = <$fd>;
-               chomp $retval if defined $retval;
-               close $fd;
-       }
-       if (defined $o_git_dir) {
-               $git_dir = $o_git_dir;
-       }
-       return $retval;
-}
-
-# get type of given object
-sub git_get_type {
-       my $hash = shift;
-
-       open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
-       my $type = <$fd>;
-       close $fd or return;
-       chomp $type;
-       return $type;
-}
-
-# repository configuration
-our $config_file = '';
-our %config;
-
-# store multiple values for single key as anonymous array reference
-# single values stored directly in the hash, not as [ <value> ]
-sub hash_set_multi {
-       my ($hash, $key, $value) = @_;
-
-       if (!exists $hash->{$key}) {
-               $hash->{$key} = $value;
-       } elsif (!ref $hash->{$key}) {
-               $hash->{$key} = [ $hash->{$key}, $value ];
-       } else {
-               push @{$hash->{$key}}, $value;
-       }
-}
-
-# return hash of git project configuration
-# optionally limited to some section, e.g. 'gitweb'
-sub git_parse_project_config {
-       my $section_regexp = shift;
-       my %config;
-
-       local $/ = "\0";
-
-       open my $fh, "-|", git_cmd(), "config", '-z', '-l',
-               or return;
-
-       while (my $keyval = <$fh>) {
-               chomp $keyval;
-               my ($key, $value) = split(/\n/, $keyval, 2);
-
-               hash_set_multi(\%config, $key, $value)
-                       if (!defined $section_regexp || $key =~ /^(?:$section_regexp)\./o);
-       }
-       close $fh;
-
-       return %config;
-}
-
-# convert config value to boolean: 'true' or 'false'
-# no value, number > 0, 'true' and 'yes' values are true
-# rest of values are treated as false (never as error)
-sub config_to_bool {
-       my $val = shift;
-
-       return 1 if !defined $val;             # section.key
-
-       # strip leading and trailing whitespace
-       $val =~ s/^\s+//;
-       $val =~ s/\s+$//;
-
-       return (($val =~ /^\d+$/ && $val) ||   # section.key = 1
-               ($val =~ /^(?:true|yes)$/i));  # section.key = true
-}
-
-# convert config value to simple decimal number
-# an optional value suffix of 'k', 'm', or 'g' will cause the value
-# to be multiplied by 1024, 1048576, or 1073741824
-sub config_to_int {
-       my $val = shift;
-
-       # strip leading and trailing whitespace
-       $val =~ s/^\s+//;
-       $val =~ s/\s+$//;
-
-       if (my ($num, $unit) = ($val =~ /^([0-9]*)([kmg])$/i)) {
-               $unit = lc($unit);
-               # unknown unit is treated as 1
-               return $num * ($unit eq 'g' ? 1073741824 :
-                              $unit eq 'm' ?    1048576 :
-                              $unit eq 'k' ?       1024 : 1);
-       }
-       return $val;
-}
-
-# convert config value to array reference, if needed
-sub config_to_multi {
-       my $val = shift;
-
-       return ref($val) ? $val : (defined($val) ? [ $val ] : []);
-}
-
-sub git_get_project_config {
-       my ($key, $type) = @_;
-
-       return unless defined $git_dir;
-
-       # key sanity check
-       return unless ($key);
-       # only subsection, if exists, is case sensitive,
-       # and not lowercased by 'git config -z -l'
-       if (my ($hi, $mi, $lo) = ($key =~ /^([^.]*)\.(.*)\.([^.]*)$/)) {
-               $lo =~ s/_//g;
-               $key = join(".", lc($hi), $mi, lc($lo));
-               return if ($lo =~ /\W/ || $hi =~ /\W/);
-       } else {
-               $key = lc($key);
-               $key =~ s/_//g;
-               return if ($key =~ /\W/);
-       }
-       $key =~ s/^gitweb\.//;
-
-       # type sanity check
-       if (defined $type) {
-               $type =~ s/^--//;
-               $type = undef
-                       unless ($type eq 'bool' || $type eq 'int');
-       }
-
-       # get config
-       if (!defined $config_file ||
-           $config_file ne "$git_dir/config") {
-               %config = git_parse_project_config('gitweb');
-               $config_file = "$git_dir/config";
-       }
-
-       # check if config variable (key) exists
-       return unless exists $config{"gitweb.$key"};
-
-       # ensure given type
-       if (!defined $type) {
-               return $config{"gitweb.$key"};
-       } elsif ($type eq 'bool') {
-               # backward compatibility: 'git config --bool' returns true/false
-               return config_to_bool($config{"gitweb.$key"}) ? 'true' : 'false';
-       } elsif ($type eq 'int') {
-               return config_to_int($config{"gitweb.$key"});
-       }
-       return $config{"gitweb.$key"};
-}
-
-# get hash of given path at given ref
-sub git_get_hash_by_path {
-       my $base = shift;
-       my $path = shift || return undef;
-       my $type = shift;
-
-       $path =~ s,/+$,,;
-
-       open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
-               or die_error(500, "Open git-ls-tree failed");
-       my $line = <$fd>;
-       close $fd or return undef;
-
-       if (!defined $line) {
-               # there is no tree or hash given by $path at $base
-               return undef;
-       }
-
-       #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
-       $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
-       if (defined $type && $type ne $2) {
-               # type doesn't match
-               return undef;
-       }
-       return $3;
-}
-
-# get path of entry with given hash at given tree-ish (ref)
-# used to get 'from' filename for combined diff (merge commit) for renames
-sub git_get_path_by_hash {
-       my $base = shift || return;
-       my $hash = shift || return;
-
-       local $/ = "\0";
-
-       open my $fd, "-|", git_cmd(), "ls-tree", '-r', '-t', '-z', $base
-               or return undef;
-       while (my $line = <$fd>) {
-               chomp $line;
-
-               #'040000 tree 595596a6a9117ddba9fe379b6b012b558bac8423  gitweb'
-               #'100644 blob e02e90f0429be0d2a69b76571101f20b8f75530f  gitweb/README'
-               if ($line =~ m/(?:[0-9]+) (?:.+) $hash\t(.+)$/) {
-                       close $fd;
-                       return $1;
-               }
-       }
-       close $fd;
-       return undef;
-}
-
-## ......................................................................
-## git utility functions, directly accessing git repository
-
-# get the value of config variable either from file named as the variable
-# itself in the repository ($GIT_DIR/$name file), or from gitweb.$name
-# configuration variable in the repository config file.
-sub git_get_file_or_project_config {
-       my ($path, $name) = @_;
-
-       $git_dir = "$projectroot/$path";
-       open my $fd, '<', "$git_dir/$name"
-               or return git_get_project_config($name);
-       my $conf = <$fd>;
-       close $fd;
-       if (defined $conf) {
-               chomp $conf;
-       }
-       return $conf;
-}
-
-sub git_get_project_description {
-       my $path = shift;
-       return git_get_file_or_project_config($path, 'description');
-}
-
-sub git_get_project_category {
-       my $path = shift;
-       return git_get_file_or_project_config($path, 'category');
-}
-
-
-# supported formats:
-# * $GIT_DIR/ctags/<tagname> file (in 'ctags' subdirectory)
-#   - if its contents is a number, use it as tag weight,
-#   - otherwise add a tag with weight 1
-# * $GIT_DIR/ctags file, each line is a tag (with weight 1)
-#   the same value multiple times increases tag weight
-# * `gitweb.ctag' multi-valued repo config variable
-sub git_get_project_ctags {
-       my $project = shift;
-       my $ctags = {};
-
-       $git_dir = "$projectroot/$project";
-       if (opendir my $dh, "$git_dir/ctags") {
-               my @files = grep { -f $_ } map { "$git_dir/ctags/$_" } readdir($dh);
-               foreach my $tagfile (@files) {
-                       open my $ct, '<', $tagfile
-                               or next;
-                       my $val = <$ct>;
-                       chomp $val if $val;
-                       close $ct;
-
-                       (my $ctag = $tagfile) =~ s#.*/##;
-                       if ($val =~ /^\d+$/) {
-                               $ctags->{$ctag} = $val;
-                       } else {
-                               $ctags->{$ctag} = 1;
-                       }
-               }
-               closedir $dh;
-
-       } elsif (open my $fh, '<', "$git_dir/ctags") {
-               while (my $line = <$fh>) {
-                       chomp $line;
-                       $ctags->{$line}++ if $line;
-               }
-               close $fh;
-
-       } else {
-               my $taglist = config_to_multi(git_get_project_config('ctag'));
-               foreach my $tag (@$taglist) {
-                       $ctags->{$tag}++;
-               }
-       }
-
-       return $ctags;
-}
-
-# return hash, where keys are content tags ('ctags'),
-# and values are sum of weights of given tag in every project
-sub git_gather_all_ctags {
-       my $projects = shift;
-       my $ctags = {};
-
-       foreach my $p (@$projects) {
-               foreach my $ct (keys %{$p->{'ctags'}}) {
-                       $ctags->{$ct} += $p->{'ctags'}->{$ct};
-               }
-       }
-
-       return $ctags;
-}
-
-sub git_populate_project_tagcloud {
-       my $ctags = shift;
-
-       # First, merge different-cased tags; tags vote on casing
-       my %ctags_lc;
-       foreach (keys %$ctags) {
-               $ctags_lc{lc $_}->{count} += $ctags->{$_};
-               if (not $ctags_lc{lc $_}->{topcount}
-                   or $ctags_lc{lc $_}->{topcount} < $ctags->{$_}) {
-                       $ctags_lc{lc $_}->{topcount} = $ctags->{$_};
-                       $ctags_lc{lc $_}->{topname} = $_;
-               }
-       }
-
-       my $cloud;
-       my $matched = $input_params{'ctag'};
-       if (eval { require HTML::TagCloud; 1; }) {
-               $cloud = HTML::TagCloud->new;
-               foreach my $ctag (sort keys %ctags_lc) {
-                       # Pad the title with spaces so that the cloud looks
-                       # less crammed.
-                       my $title = esc_html($ctags_lc{$ctag}->{topname});
-                       $title =~ s/ /&nbsp;/g;
-                       $title =~ s/^/&nbsp;/g;
-                       $title =~ s/$/&nbsp;/g;
-                       if (defined $matched && $matched eq $ctag) {
-                               $title = qq(<span class="match">$title</span>);
-                       }
-                       $cloud->add($title, href(project=>undef, ctag=>$ctag),
-                                   $ctags_lc{$ctag}->{count});
-               }
-       } else {
-               $cloud = {};
-               foreach my $ctag (keys %ctags_lc) {
-                       my $title = esc_html($ctags_lc{$ctag}->{topname}, -nbsp=>1);
-                       if (defined $matched && $matched eq $ctag) {
-                               $title = qq(<span class="match">$title</span>);
-                       }
-                       $cloud->{$ctag}{count} = $ctags_lc{$ctag}->{count};
-                       $cloud->{$ctag}{ctag} =
-                               $cgi->a({-href=>href(project=>undef, ctag=>$ctag)}, $title);
-               }
-       }
-       return $cloud;
-}
-
-sub git_show_project_tagcloud {
-       my ($cloud, $count) = @_;
-       if (ref $cloud eq 'HTML::TagCloud') {
-               return $cloud->html_and_css($count);
-       } else {
-               my @tags = sort { $cloud->{$a}->{'count'} <=> $cloud->{$b}->{'count'} } keys %$cloud;
-               return
-                       '<div id="htmltagcloud"'.($project ? '' : ' align="center"').'>' .
-                       join (', ', map {
-                               $cloud->{$_}->{'ctag'}
-                       } splice(@tags, 0, $count)) .
-                       '</div>';
-       }
-}
-
-sub git_get_project_url_list {
-       my $path = shift;
-
-       $git_dir = "$projectroot/$path";
-       open my $fd, '<', "$git_dir/cloneurl"
-               or return wantarray ?
-               @{ config_to_multi(git_get_project_config('url')) } :
-                  config_to_multi(git_get_project_config('url'));
-       my @git_project_url_list = map { chomp; $_ } <$fd>;
-       close $fd;
-
-       return wantarray ? @git_project_url_list : \@git_project_url_list;
-}
-
-sub git_get_projects_list {
-       my $filter = shift || '';
-       my $paranoid = shift;
-       my @list;
-
-       if (-d $projects_list) {
-               # search in directory
-               my $dir = $projects_list;
-               # remove the trailing "/"
-               $dir =~ s!/+$!!;
-               my $pfxlen = length("$dir");
-               my $pfxdepth = ($dir =~ tr!/!!);
-               # when filtering, search only given subdirectory
-               if ($filter && !$paranoid) {
-                       $dir .= "/$filter";
-                       $dir =~ s!/+$!!;
-               }
-
-               File::Find::find({
-                       follow_fast => 1, # follow symbolic links
-                       follow_skip => 2, # ignore duplicates
-                       dangling_symlinks => 0, # ignore dangling symlinks, silently
-                       wanted => sub {
-                               # global variables
-                               our $project_maxdepth;
-                               our $projectroot;
-                               # skip project-list toplevel, if we get it.
-                               return if (m!^[/.]$!);
-                               # only directories can be git repositories
-                               return unless (-d $_);
-                               # don't traverse too deep (Find is super slow on os x)
-                               # $project_maxdepth excludes depth of $projectroot
-                               if (($File::Find::name =~ tr!/!!) - $pfxdepth > $project_maxdepth) {
-                                       $File::Find::prune = 1;
-                                       return;
-                               }
-
-                               my $path = substr($File::Find::name, $pfxlen + 1);
-                               # paranoidly only filter here
-                               if ($paranoid && $filter && $path !~ m!^\Q$filter\E/!) {
-                                       next;
-                               }
-                               # we check related file in $projectroot
-                               if (check_export_ok("$projectroot/$path")) {
-                                       push @list, { path => $path };
-                                       $File::Find::prune = 1;
-                               }
-                       },
-               }, "$dir");
-
-       } elsif (-f $projects_list) {
-               # read from file(url-encoded):
-               # 'git%2Fgit.git Linus+Torvalds'
-               # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
-               # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
-               open my $fd, '<', $projects_list or return;
-       PROJECT:
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       my ($path, $owner) = split ' ', $line;
-                       $path = unescape($path);
-                       $owner = unescape($owner);
-                       if (!defined $path) {
-                               next;
-                       }
-                       # if $filter is rpovided, check if $path begins with $filter
-                       if ($filter && $path !~ m!^\Q$filter\E/!) {
-                               next;
-                       }
-                       if (check_export_ok("$projectroot/$path")) {
-                               my $pr = {
-                                       path => $path
-                               };
-                               if ($owner) {
-                                       $pr->{'owner'} = to_utf8($owner);
-                               }
-                               push @list, $pr;
-                       }
-               }
-               close $fd;
-       }
-       return @list;
-}
-
-# written with help of Tree::Trie module (Perl Artistic License, GPL compatibile)
-# as side effects it sets 'forks' field to list of forks for forked projects
-sub filter_forks_from_projects_list {
-       my $projects = shift;
-
-       my %trie; # prefix tree of directories (path components)
-       # generate trie out of those directories that might contain forks
-       foreach my $pr (@$projects) {
-               my $path = $pr->{'path'};
-               $path =~ s/\.git$//;      # forks of 'repo.git' are in 'repo/' directory
-               next if ($path =~ m!/$!); # skip non-bare repositories, e.g. 'repo/.git'
-               next unless ($path);      # skip '.git' repository: tests, git-instaweb
-               next unless (-d "$projectroot/$path"); # containing directory exists
-               $pr->{'forks'} = [];      # there can be 0 or more forks of project
-
-               # add to trie
-               my @dirs = split('/', $path);
-               # walk the trie, until either runs out of components or out of trie
-               my $ref = \%trie;
-               while (scalar @dirs &&
-                      exists($ref->{$dirs[0]})) {
-                       $ref = $ref->{shift @dirs};
-               }
-               # create rest of trie structure from rest of components
-               foreach my $dir (@dirs) {
-                       $ref = $ref->{$dir} = {};
-               }
-               # create end marker, store $pr as a data
-               $ref->{''} = $pr if (!exists $ref->{''});
-       }
-
-       # filter out forks, by finding shortest prefix match for paths
-       my @filtered;
- PROJECT:
-       foreach my $pr (@$projects) {
-               # trie lookup
-               my $ref = \%trie;
-       DIR:
-               foreach my $dir (split('/', $pr->{'path'})) {
-                       if (exists $ref->{''}) {
-                               # found [shortest] prefix, is a fork - skip it
-                               push @{$ref->{''}{'forks'}}, $pr;
-                               next PROJECT;
-                       }
-                       if (!exists $ref->{$dir}) {
-                               # not in trie, cannot have prefix, not a fork
-                               push @filtered, $pr;
-                               next PROJECT;
-                       }
-                       # If the dir is there, we just walk one step down the trie.
-                       $ref = $ref->{$dir};
-               }
-               # we ran out of trie
-               # (shouldn't happen: it's either no match, or end marker)
-               push @filtered, $pr;
-       }
-
-       return @filtered;
-}
-
-# note: fill_project_list_info must be run first,
-# for 'descr_long' and 'ctags' to be filled
-sub search_projects_list {
-       my ($projlist, %opts) = @_;
-       my $tagfilter  = $opts{'tagfilter'};
-       my $search_re = $opts{'search_regexp'};
-
-       return @$projlist
-               unless ($tagfilter || $search_re);
-
-       # searching projects require filling to be run before it;
-       fill_project_list_info($projlist,
-                              $tagfilter  ? 'ctags' : (),
-                              $search_re ? ('path', 'descr') : ());
-       my @projects;
- PROJECT:
-       foreach my $pr (@$projlist) {
-
-               if ($tagfilter) {
-                       next unless ref($pr->{'ctags'}) eq 'HASH';
-                       next unless
-                               grep { lc($_) eq lc($tagfilter) } keys %{$pr->{'ctags'}};
-               }
-
-               if ($search_re) {
-                       next unless
-                               $pr->{'path'} =~ /$search_re/ ||
-                               $pr->{'descr_long'} =~ /$search_re/;
-               }
-
-               push @projects, $pr;
-       }
-
-       return @projects;
-}
-
-our $gitweb_project_owner = undef;
-sub git_get_project_list_from_file {
-
-       return if (defined $gitweb_project_owner);
-
-       $gitweb_project_owner = {};
-       # read from file (url-encoded):
-       # 'git%2Fgit.git Linus+Torvalds'
-       # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
-       # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
-       if (-f $projects_list) {
-               open(my $fd, '<', $projects_list);
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       my ($pr, $ow) = split ' ', $line;
-                       $pr = unescape($pr);
-                       $ow = unescape($ow);
-                       $gitweb_project_owner->{$pr} = to_utf8($ow);
-               }
-               close $fd;
-       }
-}
-
-sub git_get_project_owner {
-       my $project = shift;
-       my $owner;
-
-       return undef unless $project;
-       $git_dir = "$projectroot/$project";
-
-       if (!defined $gitweb_project_owner) {
-               git_get_project_list_from_file();
-       }
-
-       if (exists $gitweb_project_owner->{$project}) {
-               $owner = $gitweb_project_owner->{$project};
-       }
-       if (!defined $owner){
-               $owner = git_get_project_config('owner');
-       }
-       if (!defined $owner) {
-               $owner = get_file_owner("$git_dir");
-       }
-
-       return $owner;
-}
-
-sub git_get_last_activity {
-       my ($path) = @_;
-       my $fd;
-
-       $git_dir = "$projectroot/$path";
-       open($fd, "-|", git_cmd(), 'for-each-ref',
-            '--format=%(committer)',
-            '--sort=-committerdate',
-            '--count=1',
-            map { "refs/$_" } get_branch_refs ()) or return;
-       my $most_recent = <$fd>;
-       close $fd or return;
-       if (defined $most_recent &&
-           $most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
-               my $timestamp = $1;
-               my $age = time - $timestamp;
-               return ($age, age_string($age));
-       }
-       return (undef, undef);
-}
-
-# Implementation note: when a single remote is wanted, we cannot use 'git
-# remote show -n' because that command always work (assuming it's a remote URL
-# if it's not defined), and we cannot use 'git remote show' because that would
-# try to make a network roundtrip. So the only way to find if that particular
-# remote is defined is to walk the list provided by 'git remote -v' and stop if
-# and when we find what we want.
-sub git_get_remotes_list {
-       my $wanted = shift;
-       my %remotes = ();
-
-       open my $fd, '-|' , git_cmd(), 'remote', '-v';
-       return unless $fd;
-       while (my $remote = <$fd>) {
-               chomp $remote;
-               $remote =~ s!\t(.*?)\s+\((\w+)\)$!!;
-               next if $wanted and not $remote eq $wanted;
-               my ($url, $key) = ($1, $2);
-
-               $remotes{$remote} ||= { 'heads' => () };
-               $remotes{$remote}{$key} = $url;
-       }
-       close $fd or return;
-       return wantarray ? %remotes : \%remotes;
-}
-
-# Takes a hash of remotes as first parameter and fills it by adding the
-# available remote heads for each of the indicated remotes.
-sub fill_remote_heads {
-       my $remotes = shift;
-       my @heads = map { "remotes/$_" } keys %$remotes;
-       my @remoteheads = git_get_heads_list(undef, @heads);
-       foreach my $remote (keys %$remotes) {
-               $remotes->{$remote}{'heads'} = [ grep {
-                       $_->{'name'} =~ s!^$remote/!!
-                       } @remoteheads ];
-       }
-}
-
-sub git_get_references {
-       my $type = shift || "";
-       my %refs;
-       # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
-       # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
-       open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
-               ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
-               or return;
-
-       while (my $line = <$fd>) {
-               chomp $line;
-               if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type.*)$!) {
-                       if (defined $refs{$1}) {
-                               push @{$refs{$1}}, $2;
-                       } else {
-                               $refs{$1} = [ $2 ];
-                       }
-               }
-       }
-       close $fd or return;
-       return \%refs;
-}
-
-sub git_get_rev_name_tags {
-       my $hash = shift || return undef;
-
-       open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
-               or return;
-       my $name_rev = <$fd>;
-       close $fd;
-
-       if ($name_rev =~ m|^$hash tags/(.*)$|) {
-               return $1;
-       } else {
-               # catches also '$hash undefined' output
-               return undef;
-       }
-}
-
-## ----------------------------------------------------------------------
-## parse to hash functions
-
-sub parse_date {
-       my $epoch = shift;
-       my $tz = shift || "-0000";
-
-       my %date;
-       my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
-       my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
-       my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
-       $date{'hour'} = $hour;
-       $date{'minute'} = $min;
-       $date{'mday'} = $mday;
-       $date{'day'} = $days[$wday];
-       $date{'month'} = $months[$mon];
-       $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
-                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
-       $date{'mday-time'} = sprintf "%d %s %02d:%02d",
-                            $mday, $months[$mon], $hour ,$min;
-       $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
-                            1900+$year, 1+$mon, $mday, $hour ,$min, $sec;
-
-       my ($tz_sign, $tz_hour, $tz_min) =
-               ($tz =~ m/^([-+])(\d\d)(\d\d)$/);
-       $tz_sign = ($tz_sign eq '-' ? -1 : +1);
-       my $local = $epoch + $tz_sign*((($tz_hour*60) + $tz_min)*60);
-       ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
-       $date{'hour_local'} = $hour;
-       $date{'minute_local'} = $min;
-       $date{'tz_local'} = $tz;
-       $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
-                                 1900+$year, $mon+1, $mday,
-                                 $hour, $min, $sec, $tz);
-       return %date;
-}
-
-sub parse_tag {
-       my $tag_id = shift;
-       my %tag;
-       my @comment;
-
-       open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
-       $tag{'id'} = $tag_id;
-       while (my $line = <$fd>) {
-               chomp $line;
-               if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
-                       $tag{'object'} = $1;
-               } elsif ($line =~ m/^type (.+)$/) {
-                       $tag{'type'} = $1;
-               } elsif ($line =~ m/^tag (.+)$/) {
-                       $tag{'name'} = $1;
-               } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
-                       $tag{'author'} = $1;
-                       $tag{'author_epoch'} = $2;
-                       $tag{'author_tz'} = $3;
-                       if ($tag{'author'} =~ m/^([^<]+) <([^>]*)>/) {
-                               $tag{'author_name'}  = $1;
-                               $tag{'author_email'} = $2;
-                       } else {
-                               $tag{'author_name'} = $tag{'author'};
-                       }
-               } elsif ($line =~ m/--BEGIN/) {
-                       push @comment, $line;
-                       last;
-               } elsif ($line eq "") {
-                       last;
-               }
-       }
-       push @comment, <$fd>;
-       $tag{'comment'} = \@comment;
-       close $fd or return;
-       if (!defined $tag{'name'}) {
-               return
-       };
-       return %tag
-}
-
-sub parse_commit_text {
-       my ($commit_text, $withparents) = @_;
-       my @commit_lines = split '\n', $commit_text;
-       my %co;
-
-       pop @commit_lines; # Remove '\0'
-
-       if (! @commit_lines) {
-               return;
-       }
-
-       my $header = shift @commit_lines;
-       if ($header !~ m/^[0-9a-fA-F]{40}/) {
-               return;
-       }
-       ($co{'id'}, my @parents) = split ' ', $header;
-       while (my $line = shift @commit_lines) {
-               last if $line eq "\n";
-               if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
-                       $co{'tree'} = $1;
-               } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
-                       push @parents, $1;
-               } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
-                       $co{'author'} = to_utf8($1);
-                       $co{'author_epoch'} = $2;
-                       $co{'author_tz'} = $3;
-                       if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
-                               $co{'author_name'}  = $1;
-                               $co{'author_email'} = $2;
-                       } else {
-                               $co{'author_name'} = $co{'author'};
-                       }
-               } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
-                       $co{'committer'} = to_utf8($1);
-                       $co{'committer_epoch'} = $2;
-                       $co{'committer_tz'} = $3;
-                       if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
-                               $co{'committer_name'}  = $1;
-                               $co{'committer_email'} = $2;
-                       } else {
-                               $co{'committer_name'} = $co{'committer'};
-                       }
-               }
-       }
-       if (!defined $co{'tree'}) {
-               return;
-       };
-       $co{'parents'} = \@parents;
-       $co{'parent'} = $parents[0];
-
-       foreach my $title (@commit_lines) {
-               $title =~ s/^    //;
-               if ($title ne "") {
-                       $co{'title'} = chop_str($title, 80, 5);
-                       # remove leading stuff of merges to make the interesting part visible
-                       if (length($title) > 50) {
-                               $title =~ s/^Automatic //;
-                               $title =~ s/^merge (of|with) /Merge ... /i;
-                               if (length($title) > 50) {
-                                       $title =~ s/(http|rsync):\/\///;
-                               }
-                               if (length($title) > 50) {
-                                       $title =~ s/(master|www|rsync)\.//;
-                               }
-                               if (length($title) > 50) {
-                                       $title =~ s/kernel.org:?//;
-                               }
-                               if (length($title) > 50) {
-                                       $title =~ s/\/pub\/scm//;
-                               }
-                       }
-                       $co{'title_short'} = chop_str($title, 50, 5);
-                       last;
-               }
-       }
-       if (! defined $co{'title'} || $co{'title'} eq "") {
-               $co{'title'} = $co{'title_short'} = '(no commit message)';
-       }
-       # remove added spaces
-       foreach my $line (@commit_lines) {
-               $line =~ s/^    //;
-       }
-       $co{'comment'} = \@commit_lines;
-
-       my $age = time - $co{'committer_epoch'};
-       $co{'age'} = $age;
-       $co{'age_string'} = age_string($age);
-       my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
-       if ($age > 60*60*24*7*2) {
-               $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
-               $co{'age_string_age'} = $co{'age_string'};
-       } else {
-               $co{'age_string_date'} = $co{'age_string'};
-               $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
-       }
-       return %co;
-}
-
-sub parse_commit {
-       my ($commit_id) = @_;
-       my %co;
-
-       local $/ = "\0";
-
-       open my $fd, "-|", git_cmd(), "rev-list",
-               "--parents",
-               "--header",
-               "--max-count=1",
-               $commit_id,
-               "--",
-               or die_error(500, "Open git-rev-list failed");
-       %co = parse_commit_text(<$fd>, 1);
-       close $fd;
-
-       return %co;
-}
-
-sub parse_commits {
-       my ($commit_id, $maxcount, $skip, $filename, @args) = @_;
-       my @cos;
-
-       $maxcount ||= 1;
-       $skip ||= 0;
-
-       local $/ = "\0";
-
-       open my $fd, "-|", git_cmd(), "rev-list",
-               "--header",
-               @args,
-               ("--max-count=" . $maxcount),
-               ("--skip=" . $skip),
-               @extra_options,
-               $commit_id,
-               "--",
-               ($filename ? ($filename) : ())
-               or die_error(500, "Open git-rev-list failed");
-       while (my $line = <$fd>) {
-               my %co = parse_commit_text($line);
-               push @cos, \%co;
-       }
-       close $fd;
-
-       return wantarray ? @cos : \@cos;
-}
-
-# parse line of git-diff-tree "raw" output
-sub parse_difftree_raw_line {
-       my $line = shift;
-       my %res;
-
-       # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
-       # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
-       if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
-               $res{'from_mode'} = $1;
-               $res{'to_mode'} = $2;
-               $res{'from_id'} = $3;
-               $res{'to_id'} = $4;
-               $res{'status'} = $5;
-               $res{'similarity'} = $6;
-               if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
-                       ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
-               } else {
-                       $res{'from_file'} = $res{'to_file'} = $res{'file'} = unquote($7);
-               }
-       }
-       # '::100755 100755 100755 60e79ca1b01bc8b057abe17ddab484699a7f5fdb 94067cc5f73388f33722d52ae02f44692bc07490 94067cc5f73388f33722d52ae02f44692bc07490 MR git-gui/git-gui.sh'
-       # combined diff (for merge commit)
-       elsif ($line =~ s/^(::+)((?:[0-7]{6} )+)((?:[0-9a-fA-F]{40} )+)([a-zA-Z]+)\t(.*)$//) {
-               $res{'nparents'}  = length($1);
-               $res{'from_mode'} = [ split(' ', $2) ];
-               $res{'to_mode'} = pop @{$res{'from_mode'}};
-               $res{'from_id'} = [ split(' ', $3) ];
-               $res{'to_id'} = pop @{$res{'from_id'}};
-               $res{'status'} = [ split('', $4) ];
-               $res{'to_file'} = unquote($5);
-       }
-       # 'c512b523472485aef4fff9e57b229d9d243c967f'
-       elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
-               $res{'commit'} = $1;
-       }
-
-       return wantarray ? %res : \%res;
-}
-
-# wrapper: return parsed line of git-diff-tree "raw" output
-# (the argument might be raw line, or parsed info)
-sub parsed_difftree_line {
-       my $line_or_ref = shift;
-
-       if (ref($line_or_ref) eq "HASH") {
-               # pre-parsed (or generated by hand)
-               return $line_or_ref;
-       } else {
-               return parse_difftree_raw_line($line_or_ref);
-       }
-}
-
-# parse line of git-ls-tree output
-sub parse_ls_tree_line {
-       my $line = shift;
-       my %opts = @_;
-       my %res;
-
-       if ($opts{'-l'}) {
-               #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa   16717  panic.c'
-               $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40}) +(-|[0-9]+)\t(.+)$/s;
-
-               $res{'mode'} = $1;
-               $res{'type'} = $2;
-               $res{'hash'} = $3;
-               $res{'size'} = $4;
-               if ($opts{'-z'}) {
-                       $res{'name'} = $5;
-               } else {
-                       $res{'name'} = unquote($5);
-               }
-       } else {
-               #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
-               $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
-
-               $res{'mode'} = $1;
-               $res{'type'} = $2;
-               $res{'hash'} = $3;
-               if ($opts{'-z'}) {
-                       $res{'name'} = $4;
-               } else {
-                       $res{'name'} = unquote($4);
-               }
-       }
-
-       return wantarray ? %res : \%res;
-}
-
-# generates _two_ hashes, references to which are passed as 2 and 3 argument
-sub parse_from_to_diffinfo {
-       my ($diffinfo, $from, $to, @parents) = @_;
-
-       if ($diffinfo->{'nparents'}) {
-               # combined diff
-               $from->{'file'} = [];
-               $from->{'href'} = [];
-               fill_from_file_info($diffinfo, @parents)
-                       unless exists $diffinfo->{'from_file'};
-               for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
-                       $from->{'file'}[$i] =
-                               defined $diffinfo->{'from_file'}[$i] ?
-                                       $diffinfo->{'from_file'}[$i] :
-                                       $diffinfo->{'to_file'};
-                       if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
-                               $from->{'href'}[$i] = href(action=>"blob",
-                                                          hash_base=>$parents[$i],
-                                                          hash=>$diffinfo->{'from_id'}[$i],
-                                                          file_name=>$from->{'file'}[$i]);
-                       } else {
-                               $from->{'href'}[$i] = undef;
-                       }
-               }
-       } else {
-               # ordinary (not combined) diff
-               $from->{'file'} = $diffinfo->{'from_file'};
-               if ($diffinfo->{'status'} ne "A") { # not new (added) file
-                       $from->{'href'} = href(action=>"blob", hash_base=>$hash_parent,
-                                              hash=>$diffinfo->{'from_id'},
-                                              file_name=>$from->{'file'});
-               } else {
-                       delete $from->{'href'};
-               }
-       }
-
-       $to->{'file'} = $diffinfo->{'to_file'};
-       if (!is_deleted($diffinfo)) { # file exists in result
-               $to->{'href'} = href(action=>"blob", hash_base=>$hash,
-                                    hash=>$diffinfo->{'to_id'},
-                                    file_name=>$to->{'file'});
-       } else {
-               delete $to->{'href'};
-       }
-}
-
-## ......................................................................
-## parse to array of hashes functions
-
-sub git_get_heads_list {
-       my ($limit, @classes) = @_;
-       @classes = get_branch_refs() unless @classes;
-       my @patterns = map { "refs/$_" } @classes;
-       my @headslist;
-
-       open my $fd, '-|', git_cmd(), 'for-each-ref',
-               ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
-               '--format=%(objectname) %(refname) %(subject)%00%(committer)',
-               @patterns
-               or return;
-       while (my $line = <$fd>) {
-               my %ref_item;
-
-               chomp $line;
-               my ($refinfo, $committerinfo) = split(/\0/, $line);
-               my ($hash, $name, $title) = split(' ', $refinfo, 3);
-               my ($committer, $epoch, $tz) =
-                       ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
-               $ref_item{'fullname'}  = $name;
-               my $strip_refs = join '|', map { quotemeta } get_branch_refs();
-               $name =~ s!^refs/($strip_refs|remotes)/!!;
-               $ref_item{'name'} = $name;
-               # for refs neither in 'heads' nor 'remotes' we want to
-               # show their ref dir
-               my $ref_dir = (defined $1) ? $1 : '';
-               if ($ref_dir ne '' and $ref_dir ne 'heads' and $ref_dir ne 'remotes') {
-                   $ref_item{'name'} .= ' (' . $ref_dir . ')';
-               }
-
-               $ref_item{'id'}    = $hash;
-               $ref_item{'title'} = $title || '(no commit message)';
-               $ref_item{'epoch'} = $epoch;
-               if ($epoch) {
-                       $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
-               } else {
-                       $ref_item{'age'} = "unknown";
-               }
-
-               push @headslist, \%ref_item;
-       }
-       close $fd;
-
-       return wantarray ? @headslist : \@headslist;
-}
-
-sub git_get_tags_list {
-       my $limit = shift;
-       my @tagslist;
-
-       open my $fd, '-|', git_cmd(), 'for-each-ref',
-               ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
-               '--format=%(objectname) %(objecttype) %(refname) '.
-               '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
-               'refs/tags'
-               or return;
-       while (my $line = <$fd>) {
-               my %ref_item;
-
-               chomp $line;
-               my ($refinfo, $creatorinfo) = split(/\0/, $line);
-               my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
-               my ($creator, $epoch, $tz) =
-                       ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
-               $ref_item{'fullname'} = $name;
-               $name =~ s!^refs/tags/!!;
-
-               $ref_item{'type'} = $type;
-               $ref_item{'id'} = $id;
-               $ref_item{'name'} = $name;
-               if ($type eq "tag") {
-                       $ref_item{'subject'} = $title;
-                       $ref_item{'reftype'} = $reftype;
-                       $ref_item{'refid'}   = $refid;
-               } else {
-                       $ref_item{'reftype'} = $type;
-                       $ref_item{'refid'}   = $id;
-               }
-
-               if ($type eq "tag" || $type eq "commit") {
-                       $ref_item{'epoch'} = $epoch;
-                       if ($epoch) {
-                               $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
-                       } else {
-                               $ref_item{'age'} = "unknown";
-                       }
-               }
-
-               push @tagslist, \%ref_item;
-       }
-       close $fd;
-
-       return wantarray ? @tagslist : \@tagslist;
-}
-
-## ----------------------------------------------------------------------
-## filesystem-related functions
-
-sub get_file_owner {
-       my $path = shift;
-
-       my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
-       my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
-       if (!defined $gcos) {
-               return undef;
-       }
-       my $owner = $gcos;
-       $owner =~ s/[,;].*$//;
-       return to_utf8($owner);
-}
-
-# assume that file exists
-sub insert_file {
-       my $filename = shift;
-
-       open my $fd, '<', $filename;
-       print map { to_utf8($_) } <$fd>;
-       close $fd;
-}
-
-## ......................................................................
-## mimetype related functions
-
-sub mimetype_guess_file {
-       my $filename = shift;
-       my $mimemap = shift;
-       -r $mimemap or return undef;
-
-       my %mimemap;
-       open(my $mh, '<', $mimemap) or return undef;
-       while (<$mh>) {
-               next if m/^#/; # skip comments
-               my ($mimetype, @exts) = split(/\s+/);
-               foreach my $ext (@exts) {
-                       $mimemap{$ext} = $mimetype;
-               }
-       }
-       close($mh);
-
-       $filename =~ /\.([^.]*)$/;
-       return $mimemap{$1};
-}
-
-sub mimetype_guess {
-       my $filename = shift;
-       my $mime;
-       $filename =~ /\./ or return undef;
-
-       if ($mimetypes_file) {
-               my $file = $mimetypes_file;
-               if ($file !~ m!^/!) { # if it is relative path
-                       # it is relative to project
-                       $file = "$projectroot/$project/$file";
-               }
-               $mime = mimetype_guess_file($filename, $file);
-       }
-       $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
-       return $mime;
-}
-
-sub blob_mimetype {
-       my $fd = shift;
-       my $filename = shift;
-
-       if ($filename) {
-               my $mime = mimetype_guess($filename);
-               $mime and return $mime;
-       }
-
-       # just in case
-       return $default_blob_plain_mimetype unless $fd;
-
-       if (-T $fd) {
-               return 'text/plain';
-       } elsif (! $filename) {
-               return 'application/octet-stream';
-       } elsif ($filename =~ m/\.png$/i) {
-               return 'image/png';
-       } elsif ($filename =~ m/\.gif$/i) {
-               return 'image/gif';
-       } elsif ($filename =~ m/\.jpe?g$/i) {
-               return 'image/jpeg';
-       } else {
-               return 'application/octet-stream';
-       }
-}
-
-sub blob_contenttype {
-       my ($fd, $file_name, $type) = @_;
-
-       $type ||= blob_mimetype($fd, $file_name);
-       if ($type eq 'text/plain' && defined $default_text_plain_charset) {
-               $type .= "; charset=$default_text_plain_charset";
-       }
-
-       return $type;
-}
-
-# guess file syntax for syntax highlighting; return undef if no highlighting
-# the name of syntax can (in the future) depend on syntax highlighter used
-sub guess_file_syntax {
-       my ($highlight, $mimetype, $file_name) = @_;
-       return undef unless ($highlight && defined $file_name);
-       my $basename = basename($file_name, '.in');
-       return $highlight_basename{$basename}
-               if exists $highlight_basename{$basename};
-
-       $basename =~ /\.([^.]*)$/;
-       my $ext = $1 or return undef;
-       return $highlight_ext{$ext}
-               if exists $highlight_ext{$ext};
-
-       return undef;
-}
-
-# run highlighter and return FD of its output,
-# or return original FD if no highlighting
-sub run_highlighter {
-       my ($fd, $highlight, $syntax) = @_;
-        return $fd unless ($highlight);
-
-       close $fd;
-        my $syntax_arg = "--force";
-        if ($syntax) {
-                $syntax_arg = "--syntax $syntax";
-       }
-        open $fd, quote_command(git_cmd(), "cat-file", "blob", $hash)." | ".
-            quote_command($^X, '-CO', '-MEncode=decode,FB_DEFAULT', '-pse',
-                          '$_ = decode($fe, $_, FB_DEFAULT) if !utf8::decode($_);',
-                          '--', "-fe=$fallback_encoding")." | ".
-            quote_command($highlight_bin).
-            " --replace-tabs=8 --fragment $syntax_arg |"
-            or die_error(500, "Couldn't open file or run syntax highlighter");
-        return $fd;
-}
-
-## ======================================================================
-## functions printing HTML: header, footer, error page
-
-sub get_page_title {
-       my $title = to_utf8($site_name);
-
-       unless (defined $project) {
-               if (defined $project_filter) {
-                       $title .= " - projects in '" . esc_path($project_filter) . "'";
-               }
-               return $title;
-       }
-       $title .= " - " . to_utf8($project);
-
-       return $title unless (defined $action);
-       $title .= "/$action"; # $action is US-ASCII (7bit ASCII)
-
-       return $title unless (defined $file_name);
-       $title .= " - " . esc_path($file_name);
-       if ($action eq "tree" && $file_name !~ m|/$|) {
-               $title .= "/";
-       }
-
-       return $title;
-}
-
-sub get_content_type_html {
-       # require explicit support from the UA if we are to send the page as
-       # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
-       # we have to do this because MSIE sometimes globs '*/*', pretending to
-       # support xhtml+xml but choking when it gets what it asked for.
-       if (defined $cgi->http('HTTP_ACCEPT') &&
-           $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
-           $cgi->Accept('application/xhtml+xml') != 0) {
-               return 'application/xhtml+xml';
-       } else {
-               return 'text/html';
-       }
-}
-
-sub print_feed_meta {
-       if (defined $project) {
-               my %href_params = get_feed_info();
-               if (!exists $href_params{'-title'}) {
-                       $href_params{'-title'} = 'log';
-               }
-
-               foreach my $format (qw(RSS Atom)) {
-                       my $type = lc($format);
-                       my %link_attr = (
-                               '-rel' => 'alternate',
-                               '-title' => esc_attr("$project - $href_params{'-title'} - $format feed"),
-                               '-type' => "application/$type+xml"
-                       );
-
-                       $href_params{'extra_options'} = undef;
-                       $href_params{'action'} = $type;
-                       $link_attr{'-href'} = href(%href_params);
-                       print "<link ".
-                             "rel=\"$link_attr{'-rel'}\" ".
-                             "title=\"$link_attr{'-title'}\" ".
-                             "href=\"$link_attr{'-href'}\" ".
-                             "type=\"$link_attr{'-type'}\" ".
-                             "/>\n";
-
-                       $href_params{'extra_options'} = '--no-merges';
-                       $link_attr{'-href'} = href(%href_params);
-                       $link_attr{'-title'} .= ' (no merges)';
-                       print "<link ".
-                             "rel=\"$link_attr{'-rel'}\" ".
-                             "title=\"$link_attr{'-title'}\" ".
-                             "href=\"$link_attr{'-href'}\" ".
-                             "type=\"$link_attr{'-type'}\" ".
-                             "/>\n";
-               }
-
-       } else {
-               printf('<link rel="alternate" title="%s projects list" '.
-                      'href="%s" type="text/plain; charset=utf-8" />'."\n",
-                      esc_attr($site_name), href(project=>undef, action=>"project_index"));
-               printf('<link rel="alternate" title="%s projects feeds" '.
-                      'href="%s" type="text/x-opml" />'."\n",
-                      esc_attr($site_name), href(project=>undef, action=>"opml"));
-       }
-}
-
-sub print_header_links {
-       my $status = shift;
-
-       # print out each stylesheet that exist, providing backwards capability
-       # for those people who defined $stylesheet in a config file
-       if (defined $stylesheet) {
-               print '<link rel="stylesheet" type="text/css" href="'.esc_url($stylesheet).'"/>'."\n";
-       } else {
-               foreach my $stylesheet (@stylesheets) {
-                       next unless $stylesheet;
-                       print '<link rel="stylesheet" type="text/css" href="'.esc_url($stylesheet).'"/>'."\n";
-               }
-       }
-       print_feed_meta()
-               if ($status eq '200 OK');
-       if (defined $favicon) {
-               print qq(<link rel="shortcut icon" href=").esc_url($favicon).qq(" type="image/png" />\n);
-       }
-}
-
-sub print_nav_breadcrumbs_path {
-       my $dirprefix = undef;
-       while (my $part = shift) {
-               $dirprefix .= "/" if defined $dirprefix;
-               $dirprefix .= $part;
-               print $cgi->a({-href => href(project => undef,
-                                            project_filter => $dirprefix,
-                                            action => "project_list")},
-                             esc_html($part)) . " / ";
-       }
-}
-
-sub print_nav_breadcrumbs {
-       my %opts = @_;
-
-       for my $crumb (@extra_breadcrumbs, [ $home_link_str => $home_link ]) {
-               print $cgi->a({-href => esc_url($crumb->[1])}, $crumb->[0]) . " / ";
-       }
-       if (defined $project) {
-               my @dirname = split '/', $project;
-               my $projectbasename = pop @dirname;
-               print_nav_breadcrumbs_path(@dirname);
-               print $cgi->a({-href => href(action=>"summary")}, esc_html($projectbasename));
-               if (defined $action) {
-                       my $action_print = $action ;
-                       if (defined $opts{-action_extra}) {
-                               $action_print = $cgi->a({-href => href(action=>$action)},
-                                       $action);
-                       }
-                       print " / $action_print";
-               }
-               if (defined $opts{-action_extra}) {
-                       print " / $opts{-action_extra}";
-               }
-               print "\n";
-       } elsif (defined $project_filter) {
-               print_nav_breadcrumbs_path(split '/', $project_filter);
-       }
-}
-
-sub print_search_form {
-       if (!defined $searchtext) {
-               $searchtext = "";
-       }
-       my $search_hash;
-       if (defined $hash_base) {
-               $search_hash = $hash_base;
-       } elsif (defined $hash) {
-               $search_hash = $hash;
-       } else {
-               $search_hash = "HEAD";
-       }
-       my $action = $my_uri;
-       my $use_pathinfo = gitweb_check_feature('pathinfo');
-       if ($use_pathinfo) {
-               $action .= "/".esc_url($project);
-       }
-       print $cgi->start_form(-method => "get", -action => $action) .
-             "<div class=\"search\">\n" .
-             (!$use_pathinfo &&
-             $cgi->input({-name=>"p", -value=>$project, -type=>"hidden"}) . "\n") .
-             $cgi->input({-name=>"a", -value=>"search", -type=>"hidden"}) . "\n" .
-             $cgi->input({-name=>"h", -value=>$search_hash, -type=>"hidden"}) . "\n" .
-             $cgi->popup_menu(-name => 'st', -default => 'commit',
-                              -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) .
-             " " . $cgi->a({-href => href(action=>"search_help"),
-                            -title => "search help" }, "?") . " search:\n",
-             $cgi->textfield(-name => "s", -value => $searchtext, -override => 1) . "\n" .
-             "<span title=\"Extended regular expression\">" .
-             $cgi->checkbox(-name => 'sr', -value => 1, -label => 're',
-                            -checked => $search_use_regexp) .
-             "</span>" .
-             "</div>" .
-             $cgi->end_form() . "\n";
-}
-
-sub git_header_html {
-       my $status = shift || "200 OK";
-       my $expires = shift;
-       my %opts = @_;
-
-       my $title = get_page_title();
-       my $content_type = get_content_type_html();
-       print $cgi->header(-type=>$content_type, -charset => 'utf-8',
-                          -status=> $status, -expires => $expires)
-               unless ($opts{'-no_http_header'});
-       my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
-       print <<EOF;
-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
-<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
-<!-- git core binaries version $git_version -->
-<head>
-<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
-<meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
-<meta name="robots" content="index, nofollow"/>
-<title>$title</title>
-EOF
-       # the stylesheet, favicon etc urls won't work correctly with path_info
-       # unless we set the appropriate base URL
-       if ($ENV{'PATH_INFO'}) {
-               print "<base href=\"".esc_url($base_url)."\" />\n";
-       }
-       print_header_links($status);
-
-       if (defined $site_html_head_string) {
-               print to_utf8($site_html_head_string);
-       }
-
-       print "</head>\n" .
-             "<body>\n";
-
-       if (defined $site_header && -f $site_header) {
-               insert_file($site_header);
-       }
-
-       print "<div class=\"page_header\">\n";
-       if (defined $logo) {
-               print $cgi->a({-href => esc_url($logo_url),
-                              -title => $logo_label},
-                             $cgi->img({-src => esc_url($logo),
-                                        -width => 72, -height => 27,
-                                        -alt => "git",
-                                        -class => "logo"}));
-       }
-       print_nav_breadcrumbs(%opts);
-       print "</div>\n";
-
-       my $have_search = gitweb_check_feature('search');
-       if (defined $project && $have_search) {
-               print_search_form();
-       }
-}
-
-sub git_footer_html {
-       my $feed_class = 'rss_logo';
-
-       print "<div class=\"page_footer\">\n";
-       if (defined $project) {
-               my $descr = git_get_project_description($project);
-               if (defined $descr) {
-                       print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
-               }
-
-               my %href_params = get_feed_info();
-               if (!%href_params) {
-                       $feed_class .= ' generic';
-               }
-               $href_params{'-title'} ||= 'log';
-
-               foreach my $format (qw(RSS Atom)) {
-                       $href_params{'action'} = lc($format);
-                       print $cgi->a({-href => href(%href_params),
-                                     -title => "$href_params{'-title'} $format feed",
-                                     -class => $feed_class}, $format)."\n";
-               }
-
-       } else {
-               print $cgi->a({-href => href(project=>undef, action=>"opml",
-                                            project_filter => $project_filter),
-                             -class => $feed_class}, "OPML") . " ";
-               print $cgi->a({-href => href(project=>undef, action=>"project_index",
-                                            project_filter => $project_filter),
-                             -class => $feed_class}, "TXT") . "\n";
-       }
-       print "</div>\n"; # class="page_footer"
-
-       if (defined $t0 && gitweb_check_feature('timed')) {
-               print "<div id=\"generating_info\">\n";
-               print 'This page took '.
-                     '<span id="generating_time" class="time_span">'.
-                     tv_interval($t0, [ gettimeofday() ]).
-                     ' seconds </span>'.
-                     ' and '.
-                     '<span id="generating_cmd">'.
-                     $number_of_git_cmds.
-                     '</span> git commands '.
-                     " to generate.\n";
-               print "</div>\n"; # class="page_footer"
-       }
-
-       if (defined $site_footer && -f $site_footer) {
-               insert_file($site_footer);
-       }
-
-       print qq!<script type="text/javascript" src="!.esc_url($javascript).qq!"></script>\n!;
-       if (defined $action &&
-           $action eq 'blame_incremental') {
-               print qq!<script type="text/javascript">\n!.
-                     qq!startBlame("!. href(action=>"blame_data", -replay=>1) .qq!",\n!.
-                     qq!           "!. href() .qq!");\n!.
-                     qq!</script>\n!;
-       } else {
-               my ($jstimezone, $tz_cookie, $datetime_class) =
-                       gitweb_get_feature('javascript-timezone');
-
-               print qq!<script type="text/javascript">\n!.
-                     qq!window.onload = function () {\n!;
-               if (gitweb_check_feature('javascript-actions')) {
-                       print qq!       fixLinks();\n!;
-               }
-               if ($jstimezone && $tz_cookie && $datetime_class) {
-                       print qq!       var tz_cookie = { name: '$tz_cookie', expires: 14, path: '/' };\n!. # in days
-                             qq!       onloadTZSetup('$jstimezone', tz_cookie, '$datetime_class');\n!;
-               }
-               print qq!};\n!.
-                     qq!</script>\n!;
-       }
-
-       print "</body>\n" .
-             "</html>";
-}
-
-# die_error(<http_status_code>, <error_message>[, <detailed_html_description>])
-# Example: die_error(404, 'Hash not found')
-# By convention, use the following status codes (as defined in RFC 2616):
-# 400: Invalid or missing CGI parameters, or
-#      requested object exists but has wrong type.
-# 403: Requested feature (like "pickaxe" or "snapshot") not enabled on
-#      this server or project.
-# 404: Requested object/revision/project doesn't exist.
-# 500: The server isn't configured properly, or
-#      an internal error occurred (e.g. failed assertions caused by bugs), or
-#      an unknown error occurred (e.g. the git binary died unexpectedly).
-# 503: The server is currently unavailable (because it is overloaded,
-#      or down for maintenance).  Generally, this is a temporary state.
-sub die_error {
-       my $status = shift || 500;
-       my $error = esc_html(shift) || "Internal Server Error";
-       my $extra = shift;
-       my %opts = @_;
-
-       my %http_responses = (
-               400 => '400 Bad Request',
-               403 => '403 Forbidden',
-               404 => '404 Not Found',
-               500 => '500 Internal Server Error',
-               503 => '503 Service Unavailable',
-       );
-       git_header_html($http_responses{$status}, undef, %opts);
-       print <<EOF;
-<div class="page_body">
-<br /><br />
-$status - $error
-<br />
-EOF
-       if (defined $extra) {
-               print "<hr />\n" .
-                     "$extra\n";
-       }
-       print "</div>\n";
-
-       git_footer_html();
-       goto DONE_GITWEB
-               unless ($opts{'-error_handler'});
-}
-
-## ----------------------------------------------------------------------
-## functions printing or outputting HTML: navigation
-
-sub git_print_page_nav {
-       my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
-       $extra = '' if !defined $extra; # pager or formats
-
-       my @navs = qw(summary shortlog log commit commitdiff tree);
-       if ($suppress) {
-               @navs = grep { $_ ne $suppress } @navs;
-       }
-
-       my %arg = map { $_ => {action=>$_} } @navs;
-       if (defined $head) {
-               for (qw(commit commitdiff)) {
-                       $arg{$_}{'hash'} = $head;
-               }
-               if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
-                       for (qw(shortlog log)) {
-                               $arg{$_}{'hash'} = $head;
-                       }
-               }
-       }
-
-       $arg{'tree'}{'hash'} = $treehead if defined $treehead;
-       $arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
-
-       my @actions = gitweb_get_feature('actions');
-       my %repl = (
-               '%' => '%',
-               'n' => $project,         # project name
-               'f' => $git_dir,         # project path within filesystem
-               'h' => $treehead || '',  # current hash ('h' parameter)
-               'b' => $treebase || '',  # hash base ('hb' parameter)
-       );
-       while (@actions) {
-               my ($label, $link, $pos) = splice(@actions,0,3);
-               # insert
-               @navs = map { $_ eq $pos ? ($_, $label) : $_ } @navs;
-               # munch munch
-               $link =~ s/%([%nfhb])/$repl{$1}/g;
-               $arg{$label}{'_href'} = $link;
-       }
-
-       print "<div class=\"page_nav\">\n" .
-               (join " | ",
-                map { $_ eq $current ?
-                      $_ : $cgi->a({-href => ($arg{$_}{_href} ? $arg{$_}{_href} : href(%{$arg{$_}}))}, "$_")
-                } @navs);
-       print "<br/>\n$extra<br/>\n" .
-             "</div>\n";
-}
-
-# returns a submenu for the nagivation of the refs views (tags, heads,
-# remotes) with the current view disabled and the remotes view only
-# available if the feature is enabled
-sub format_ref_views {
-       my ($current) = @_;
-       my @ref_views = qw{tags heads};
-       push @ref_views, 'remotes' if gitweb_check_feature('remote_heads');
-       return join " | ", map {
-               $_ eq $current ? $_ :
-               $cgi->a({-href => href(action=>$_)}, $_)
-       } @ref_views
-}
-
-sub format_paging_nav {
-       my ($action, $page, $has_next_link) = @_;
-       my $paging_nav;
-
-
-       if ($page > 0) {
-               $paging_nav .=
-                       $cgi->a({-href => href(-replay=>1, page=>undef)}, "first") .
-                       " &sdot; " .
-                       $cgi->a({-href => href(-replay=>1, page=>$page-1),
-                                -accesskey => "p", -title => "Alt-p"}, "prev");
-       } else {
-               $paging_nav .= "first &sdot; prev";
-       }
-
-       if ($has_next_link) {
-               $paging_nav .= " &sdot; " .
-                       $cgi->a({-href => href(-replay=>1, page=>$page+1),
-                                -accesskey => "n", -title => "Alt-n"}, "next");
-       } else {
-               $paging_nav .= " &sdot; next";
-       }
-
-       return $paging_nav;
-}
-
-## ......................................................................
-## functions printing or outputting HTML: div
-
-sub git_print_header_div {
-       my ($action, $title, $hash, $hash_base) = @_;
-       my %args = ();
-
-       $args{'action'} = $action;
-       $args{'hash'} = $hash if $hash;
-       $args{'hash_base'} = $hash_base if $hash_base;
-
-       print "<div class=\"header\">\n" .
-             $cgi->a({-href => href(%args), -class => "title"},
-             $title ? $title : $action) .
-             "\n</div>\n";
-}
-
-sub format_repo_url {
-       my ($name, $url) = @_;
-       return "<tr class=\"metadata_url\"><td>$name</td><td>$url</td></tr>\n";
-}
-
-# Group output by placing it in a DIV element and adding a header.
-# Options for start_div() can be provided by passing a hash reference as the
-# first parameter to the function.
-# Options to git_print_header_div() can be provided by passing an array
-# reference. This must follow the options to start_div if they are present.
-# The content can be a scalar, which is output as-is, a scalar reference, which
-# is output after html escaping, an IO handle passed either as *handle or
-# *handle{IO}, or a function reference. In the latter case all following
-# parameters will be taken as argument to the content function call.
-sub git_print_section {
-       my ($div_args, $header_args, $content);
-       my $arg = shift;
-       if (ref($arg) eq 'HASH') {
-               $div_args = $arg;
-               $arg = shift;
-       }
-       if (ref($arg) eq 'ARRAY') {
-               $header_args = $arg;
-               $arg = shift;
-       }
-       $content = $arg;
-
-       print $cgi->start_div($div_args);
-       git_print_header_div(@$header_args);
-
-       if (ref($content) eq 'CODE') {
-               $content->(@_);
-       } elsif (ref($content) eq 'SCALAR') {
-               print esc_html($$content);
-       } elsif (ref($content) eq 'GLOB' or ref($content) eq 'IO::Handle') {
-               print <$content>;
-       } elsif (!ref($content) && defined($content)) {
-               print $content;
-       }
-
-       print $cgi->end_div;
-}
-
-sub format_timestamp_html {
-       my $date = shift;
-       my $strtime = $date->{'rfc2822'};
-
-       my (undef, undef, $datetime_class) =
-               gitweb_get_feature('javascript-timezone');
-       if ($datetime_class) {
-               $strtime = qq!<span class="$datetime_class">$strtime</span>!;
-       }
-
-       my $localtime_format = '(%02d:%02d %s)';
-       if ($date->{'hour_local'} < 6) {
-               $localtime_format = '(<span class="atnight">%02d:%02d</span> %s)';
-       }
-       $strtime .= ' ' .
-                   sprintf($localtime_format,
-                           $date->{'hour_local'}, $date->{'minute_local'}, $date->{'tz_local'});
-
-       return $strtime;
-}
-
-# Outputs the author name and date in long form
-sub git_print_authorship {
-       my $co = shift;
-       my %opts = @_;
-       my $tag = $opts{-tag} || 'div';
-       my $author = $co->{'author_name'};
-
-       my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
-       print "<$tag class=\"author_date\">" .
-             format_search_author($author, "author", esc_html($author)) .
-             " [".format_timestamp_html(\%ad)."]".
-             git_get_avatar($co->{'author_email'}, -pad_before => 1) .
-             "</$tag>\n";
-}
-
-# Outputs table rows containing the full author or committer information,
-# in the format expected for 'commit' view (& similar).
-# Parameters are a commit hash reference, followed by the list of people
-# to output information for. If the list is empty it defaults to both
-# author and committer.
-sub git_print_authorship_rows {
-       my $co = shift;
-       # too bad we can't use @people = @_ || ('author', 'committer')
-       my @people = @_;
-       @people = ('author', 'committer') unless @people;
-       foreach my $who (@people) {
-               my %wd = parse_date($co->{"${who}_epoch"}, $co->{"${who}_tz"});
-               print "<tr><td>$who</td><td>" .
-                     format_search_author($co->{"${who}_name"}, $who,
-                                          esc_html($co->{"${who}_name"})) . " " .
-                     format_search_author($co->{"${who}_email"}, $who,
-                                          esc_html("<" . $co->{"${who}_email"} . ">")) .
-                     "</td><td rowspan=\"2\">" .
-                     git_get_avatar($co->{"${who}_email"}, -size => 'double') .
-                     "</td></tr>\n" .
-                     "<tr>" .
-                     "<td></td><td>" .
-                     format_timestamp_html(\%wd) .
-                     "</td>" .
-                     "</tr>\n";
-       }
-}
-
-sub git_print_page_path {
-       my $name = shift;
-       my $type = shift;
-       my $hb = shift;
-
-
-       print "<div class=\"page_path\">";
-       print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
-                     -title => 'tree root'}, to_utf8("[$project]"));
-       print " / ";
-       if (defined $name) {
-               my @dirname = split '/', $name;
-               my $basename = pop @dirname;
-               my $fullname = '';
-
-               foreach my $dir (@dirname) {
-                       $fullname .= ($fullname ? '/' : '') . $dir;
-                       print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
-                                                    hash_base=>$hb),
-                                     -title => $fullname}, esc_path($dir));
-                       print " / ";
-               }
-               if (defined $type && $type eq 'blob') {
-                       print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
-                                                    hash_base=>$hb),
-                                     -title => $name}, esc_path($basename));
-               } elsif (defined $type && $type eq 'tree') {
-                       print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
-                                                    hash_base=>$hb),
-                                     -title => $name}, esc_path($basename));
-                       print " / ";
-               } else {
-                       print esc_path($basename);
-               }
-       }
-       print "<br/></div>\n";
-}
-
-sub git_print_log {
-       my $log = shift;
-       my %opts = @_;
-
-       if ($opts{'-remove_title'}) {
-               # remove title, i.e. first line of log
-               shift @$log;
-       }
-       # remove leading empty lines
-       while (defined $log->[0] && $log->[0] eq "") {
-               shift @$log;
-       }
-
-       # print log
-       my $skip_blank_line = 0;
-       foreach my $line (@$log) {
-               if ($line =~ m/^\s*([A-Z][-A-Za-z]*-[Bb]y|C[Cc]): /) {
-                       if (! $opts{'-remove_signoff'}) {
-                               print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
-                               $skip_blank_line = 1;
-                       }
-                       next;
-               }
-
-               if ($line =~ m,\s*([a-z]*link): (https?://\S+),i) {
-                       if (! $opts{'-remove_signoff'}) {
-                               print "<span class=\"signoff\">" . esc_html($1) . ": " .
-                                       "<a href=\"" . esc_html($2) . "\">" . esc_html($2) . "</a>" .
-                                       "</span><br/>\n";
-                               $skip_blank_line = 1;
-                       }
-                       next;
-               }
-
-               # print only one empty line
-               # do not print empty line after signoff
-               if ($line eq "") {
-                       next if ($skip_blank_line);
-                       $skip_blank_line = 1;
-               } else {
-                       $skip_blank_line = 0;
-               }
-
-               print format_log_line_html($line) . "<br/>\n";
-       }
-
-       if ($opts{'-final_empty_line'}) {
-               # end with single empty line
-               print "<br/>\n" unless $skip_blank_line;
-       }
-}
-
-# return link target (what link points to)
-sub git_get_link_target {
-       my $hash = shift;
-       my $link_target;
-
-       # read link
-       open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
-               or return;
-       {
-               local $/ = undef;
-               $link_target = <$fd>;
-       }
-       close $fd
-               or return;
-
-       return $link_target;
-}
-
-# given link target, and the directory (basedir) the link is in,
-# return target of link relative to top directory (top tree);
-# return undef if it is not possible (including absolute links).
-sub normalize_link_target {
-       my ($link_target, $basedir) = @_;
-
-       # absolute symlinks (beginning with '/') cannot be normalized
-       return if (substr($link_target, 0, 1) eq '/');
-
-       # normalize link target to path from top (root) tree (dir)
-       my $path;
-       if ($basedir) {
-               $path = $basedir . '/' . $link_target;
-       } else {
-               # we are in top (root) tree (dir)
-               $path = $link_target;
-       }
-
-       # remove //, /./, and /../
-       my @path_parts;
-       foreach my $part (split('/', $path)) {
-               # discard '.' and ''
-               next if (!$part || $part eq '.');
-               # handle '..'
-               if ($part eq '..') {
-                       if (@path_parts) {
-                               pop @path_parts;
-                       } else {
-                               # link leads outside repository (outside top dir)
-                               return;
-                       }
-               } else {
-                       push @path_parts, $part;
-               }
-       }
-       $path = join('/', @path_parts);
-
-       return $path;
-}
-
-# print tree entry (row of git_tree), but without encompassing <tr> element
-sub git_print_tree_entry {
-       my ($t, $basedir, $hash_base, $have_blame) = @_;
-
-       my %base_key = ();
-       $base_key{'hash_base'} = $hash_base if defined $hash_base;
-
-       # The format of a table row is: mode list link.  Where mode is
-       # the mode of the entry, list is the name of the entry, an href,
-       # and link is the action links of the entry.
-
-       print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
-       if (exists $t->{'size'}) {
-               print "<td class=\"size\">$t->{'size'}</td>\n";
-       }
-       if ($t->{'type'} eq "blob") {
-               print "<td class=\"list\">" .
-                       $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
-                                              file_name=>"$basedir$t->{'name'}", %base_key),
-                               -class => "list"}, esc_path($t->{'name'}));
-               if (S_ISLNK(oct $t->{'mode'})) {
-                       my $link_target = git_get_link_target($t->{'hash'});
-                       if ($link_target) {
-                               my $norm_target = normalize_link_target($link_target, $basedir);
-                               if (defined $norm_target) {
-                                       print " -> " .
-                                             $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
-                                                                    file_name=>$norm_target),
-                                                      -title => $norm_target}, esc_path($link_target));
-                               } else {
-                                       print " -> " . esc_path($link_target);
-                               }
-                       }
-               }
-               print "</td>\n";
-               print "<td class=\"link\">";
-               print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
-                                            file_name=>"$basedir$t->{'name'}", %base_key)},
-                             "blob");
-               if ($have_blame) {
-                       print " | " .
-                             $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
-                                                    file_name=>"$basedir$t->{'name'}", %base_key)},
-                                     "blame");
-               }
-               if (defined $hash_base) {
-                       print " | " .
-                             $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
-                                                    hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
-                                     "history");
-               }
-               print " | " .
-                       $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
-                                              file_name=>"$basedir$t->{'name'}")},
-                               "raw");
-               print "</td>\n";
-
-       } elsif ($t->{'type'} eq "tree") {
-               print "<td class=\"list\">";
-               print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
-                                            file_name=>"$basedir$t->{'name'}",
-                                            %base_key)},
-                             esc_path($t->{'name'}));
-               print "</td>\n";
-               print "<td class=\"link\">";
-               print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
-                                            file_name=>"$basedir$t->{'name'}",
-                                            %base_key)},
-                             "tree");
-               if (defined $hash_base) {
-                       print " | " .
-                             $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
-                                                    file_name=>"$basedir$t->{'name'}")},
-                                     "history");
-               }
-               print "</td>\n";
-       } else {
-               # unknown object: we can only present history for it
-               # (this includes 'commit' object, i.e. submodule support)
-               print "<td class=\"list\">" .
-                     esc_path($t->{'name'}) .
-                     "</td>\n";
-               print "<td class=\"link\">";
-               if (defined $hash_base) {
-                       print $cgi->a({-href => href(action=>"history",
-                                                    hash_base=>$hash_base,
-                                                    file_name=>"$basedir$t->{'name'}")},
-                                     "history");
-               }
-               print "</td>\n";
-       }
-}
-
-## ......................................................................
-## functions printing large fragments of HTML
-
-# get pre-image filenames for merge (combined) diff
-sub fill_from_file_info {
-       my ($diff, @parents) = @_;
-
-       $diff->{'from_file'} = [ ];
-       $diff->{'from_file'}[$diff->{'nparents'} - 1] = undef;
-       for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
-               if ($diff->{'status'}[$i] eq 'R' ||
-                   $diff->{'status'}[$i] eq 'C') {
-                       $diff->{'from_file'}[$i] =
-                               git_get_path_by_hash($parents[$i], $diff->{'from_id'}[$i]);
-               }
-       }
-
-       return $diff;
-}
-
-# is current raw difftree line of file deletion
-sub is_deleted {
-       my $diffinfo = shift;
-
-       return $diffinfo->{'to_id'} eq ('0' x 40);
-}
-
-# does patch correspond to [previous] difftree raw line
-# $diffinfo  - hashref of parsed raw diff format
-# $patchinfo - hashref of parsed patch diff format
-#              (the same keys as in $diffinfo)
-sub is_patch_split {
-       my ($diffinfo, $patchinfo) = @_;
-
-       return defined $diffinfo && defined $patchinfo
-               && $diffinfo->{'to_file'} eq $patchinfo->{'to_file'};
-}
-
-
-sub git_difftree_body {
-       my ($difftree, $hash, @parents) = @_;
-       my ($parent) = $parents[0];
-       my $have_blame = gitweb_check_feature('blame');
-       print "<div class=\"list_head\">\n";
-       if ($#{$difftree} > 10) {
-               print(($#{$difftree} + 1) . " files changed:\n");
-       }
-       print "</div>\n";
-
-       print "<table class=\"" .
-             (@parents > 1 ? "combined " : "") .
-             "diff_tree\">\n";
-
-       # header only for combined diff in 'commitdiff' view
-       my $has_header = @$difftree && @parents > 1 && $action eq 'commitdiff';
-       if ($has_header) {
-               # table header
-               print "<thead><tr>\n" .
-                      "<th></th><th></th>\n"; # filename, patchN link
-               for (my $i = 0; $i < @parents; $i++) {
-                       my $par = $parents[$i];
-                       print "<th>" .
-                             $cgi->a({-href => href(action=>"commitdiff",
-                                                    hash=>$hash, hash_parent=>$par),
-                                      -title => 'commitdiff to parent number ' .
-                                                 ($i+1) . ': ' . substr($par,0,7)},
-                                     $i+1) .
-                             "&nbsp;</th>\n";
-               }
-               print "</tr></thead>\n<tbody>\n";
-       }
-
-       my $alternate = 1;
-       my $patchno = 0;
-       foreach my $line (@{$difftree}) {
-               my $diff = parsed_difftree_line($line);
-
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-
-               if (exists $diff->{'nparents'}) { # combined diff
-
-                       fill_from_file_info($diff, @parents)
-                               unless exists $diff->{'from_file'};
-
-                       if (!is_deleted($diff)) {
-                               # file exists in the result (child) commit
-                               print "<td>" .
-                                     $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                            file_name=>$diff->{'to_file'},
-                                                            hash_base=>$hash),
-                                             -class => "list"}, esc_path($diff->{'to_file'})) .
-                                     "</td>\n";
-                       } else {
-                               print "<td>" .
-                                     esc_path($diff->{'to_file'}) .
-                                     "</td>\n";
-                       }
-
-                       if ($action eq 'commitdiff') {
-                               # link to patch
-                               $patchno++;
-                               print "<td class=\"link\">" .
-                                     $cgi->a({-href => href(-anchor=>"patch$patchno")},
-                                             "patch") .
-                                     " | " .
-                                     "</td>\n";
-                       }
-
-                       my $has_history = 0;
-                       my $not_deleted = 0;
-                       for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
-                               my $hash_parent = $parents[$i];
-                               my $from_hash = $diff->{'from_id'}[$i];
-                               my $from_path = $diff->{'from_file'}[$i];
-                               my $status = $diff->{'status'}[$i];
-
-                               $has_history ||= ($status ne 'A');
-                               $not_deleted ||= ($status ne 'D');
-
-                               if ($status eq 'A') {
-                                       print "<td  class=\"link\" align=\"right\"> | </td>\n";
-                               } elsif ($status eq 'D') {
-                                       print "<td class=\"link\">" .
-                                             $cgi->a({-href => href(action=>"blob",
-                                                                    hash_base=>$hash,
-                                                                    hash=>$from_hash,
-                                                                    file_name=>$from_path)},
-                                                     "blob" . ($i+1)) .
-                                             " | </td>\n";
-                               } else {
-                                       if ($diff->{'to_id'} eq $from_hash) {
-                                               print "<td class=\"link nochange\">";
-                                       } else {
-                                               print "<td class=\"link\">";
-                                       }
-                                       print $cgi->a({-href => href(action=>"blobdiff",
-                                                                    hash=>$diff->{'to_id'},
-                                                                    hash_parent=>$from_hash,
-                                                                    hash_base=>$hash,
-                                                                    hash_parent_base=>$hash_parent,
-                                                                    file_name=>$diff->{'to_file'},
-                                                                    file_parent=>$from_path)},
-                                                     "diff" . ($i+1)) .
-                                             " | </td>\n";
-                               }
-                       }
-
-                       print "<td class=\"link\">";
-                       if ($not_deleted) {
-                               print $cgi->a({-href => href(action=>"blob",
-                                                            hash=>$diff->{'to_id'},
-                                                            file_name=>$diff->{'to_file'},
-                                                            hash_base=>$hash)},
-                                             "blob");
-                               print " | " if ($has_history);
-                       }
-                       if ($has_history) {
-                               print $cgi->a({-href => href(action=>"history",
-                                                            file_name=>$diff->{'to_file'},
-                                                            hash_base=>$hash)},
-                                             "history");
-                       }
-                       print "</td>\n";
-
-                       print "</tr>\n";
-                       next; # instead of 'else' clause, to avoid extra indent
-               }
-               # else ordinary diff
-
-               my ($to_mode_oct, $to_mode_str, $to_file_type);
-               my ($from_mode_oct, $from_mode_str, $from_file_type);
-               if ($diff->{'to_mode'} ne ('0' x 6)) {
-                       $to_mode_oct = oct $diff->{'to_mode'};
-                       if (S_ISREG($to_mode_oct)) { # only for regular file
-                               $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
-                       }
-                       $to_file_type = file_type($diff->{'to_mode'});
-               }
-               if ($diff->{'from_mode'} ne ('0' x 6)) {
-                       $from_mode_oct = oct $diff->{'from_mode'};
-                       if (S_ISREG($from_mode_oct)) { # only for regular file
-                               $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
-                       }
-                       $from_file_type = file_type($diff->{'from_mode'});
-               }
-
-               if ($diff->{'status'} eq "A") { # created
-                       my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
-                       $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
-                       $mode_chng   .= "]</span>";
-                       print "<td>";
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                    hash_base=>$hash, file_name=>$diff->{'file'}),
-                                     -class => "list"}, esc_path($diff->{'file'}));
-                       print "</td>\n";
-                       print "<td>$mode_chng</td>\n";
-                       print "<td class=\"link\">";
-                       if ($action eq 'commitdiff') {
-                               # link to patch
-                               $patchno++;
-                               print $cgi->a({-href => href(-anchor=>"patch$patchno")},
-                                             "patch") .
-                                     " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                    hash_base=>$hash, file_name=>$diff->{'file'})},
-                                     "blob");
-                       print "</td>\n";
-
-               } elsif ($diff->{'status'} eq "D") { # deleted
-                       my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
-                       print "<td>";
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
-                                                    hash_base=>$parent, file_name=>$diff->{'file'}),
-                                      -class => "list"}, esc_path($diff->{'file'}));
-                       print "</td>\n";
-                       print "<td>$mode_chng</td>\n";
-                       print "<td class=\"link\">";
-                       if ($action eq 'commitdiff') {
-                               # link to patch
-                               $patchno++;
-                               print $cgi->a({-href => href(-anchor=>"patch$patchno")},
-                                             "patch") .
-                                     " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
-                                                    hash_base=>$parent, file_name=>$diff->{'file'})},
-                                     "blob") . " | ";
-                       if ($have_blame) {
-                               print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
-                                                            file_name=>$diff->{'file'})},
-                                             "blame") . " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
-                                                    file_name=>$diff->{'file'})},
-                                     "history");
-                       print "</td>\n";
-
-               } elsif ($diff->{'status'} eq "M" || $diff->{'status'} eq "T") { # modified, or type changed
-                       my $mode_chnge = "";
-                       if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
-                               $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
-                               if ($from_file_type ne $to_file_type) {
-                                       $mode_chnge .= " from $from_file_type to $to_file_type";
-                               }
-                               if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
-                                       if ($from_mode_str && $to_mode_str) {
-                                               $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
-                                       } elsif ($to_mode_str) {
-                                               $mode_chnge .= " mode: $to_mode_str";
-                                       }
-                               }
-                               $mode_chnge .= "]</span>\n";
-                       }
-                       print "<td>";
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                    hash_base=>$hash, file_name=>$diff->{'file'}),
-                                     -class => "list"}, esc_path($diff->{'file'}));
-                       print "</td>\n";
-                       print "<td>$mode_chnge</td>\n";
-                       print "<td class=\"link\">";
-                       if ($action eq 'commitdiff') {
-                               # link to patch
-                               $patchno++;
-                               print $cgi->a({-href => href(-anchor=>"patch$patchno")},
-                                             "patch") .
-                                     " | ";
-                       } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
-                               # "commit" view and modified file (not onlu mode changed)
-                               print $cgi->a({-href => href(action=>"blobdiff",
-                                                            hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
-                                                            hash_base=>$hash, hash_parent_base=>$parent,
-                                                            file_name=>$diff->{'file'})},
-                                             "diff") .
-                                     " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                    hash_base=>$hash, file_name=>$diff->{'file'})},
-                                      "blob") . " | ";
-                       if ($have_blame) {
-                               print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
-                                                            file_name=>$diff->{'file'})},
-                                             "blame") . " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
-                                                    file_name=>$diff->{'file'})},
-                                     "history");
-                       print "</td>\n";
-
-               } elsif ($diff->{'status'} eq "R" || $diff->{'status'} eq "C") { # renamed or copied
-                       my %status_name = ('R' => 'moved', 'C' => 'copied');
-                       my $nstatus = $status_name{$diff->{'status'}};
-                       my $mode_chng = "";
-                       if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
-                               # mode also for directories, so we cannot use $to_mode_str
-                               $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
-                       }
-                       print "<td>" .
-                             $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
-                                                    hash=>$diff->{'to_id'}, file_name=>$diff->{'to_file'}),
-                                     -class => "list"}, esc_path($diff->{'to_file'})) . "</td>\n" .
-                             "<td><span class=\"file_status $nstatus\">[$nstatus from " .
-                             $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
-                                                    hash=>$diff->{'from_id'}, file_name=>$diff->{'from_file'}),
-                                     -class => "list"}, esc_path($diff->{'from_file'})) .
-                             " with " . (int $diff->{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
-                             "<td class=\"link\">";
-                       if ($action eq 'commitdiff') {
-                               # link to patch
-                               $patchno++;
-                               print $cgi->a({-href => href(-anchor=>"patch$patchno")},
-                                             "patch") .
-                                     " | ";
-                       } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
-                               # "commit" view and modified file (not only pure rename or copy)
-                               print $cgi->a({-href => href(action=>"blobdiff",
-                                                            hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
-                                                            hash_base=>$hash, hash_parent_base=>$parent,
-                                                            file_name=>$diff->{'to_file'}, file_parent=>$diff->{'from_file'})},
-                                             "diff") .
-                                     " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                    hash_base=>$parent, file_name=>$diff->{'to_file'})},
-                                     "blob") . " | ";
-                       if ($have_blame) {
-                               print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
-                                                            file_name=>$diff->{'to_file'})},
-                                             "blame") . " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
-                                                   file_name=>$diff->{'to_file'})},
-                                     "history");
-                       print "</td>\n";
-
-               } # we should not encounter Unmerged (U) or Unknown (X) status
-               print "</tr>\n";
-       }
-       print "</tbody>" if $has_header;
-       print "</table>\n";
-}
-
-# Print context lines and then rem/add lines in a side-by-side manner.
-sub print_sidebyside_diff_lines {
-       my ($ctx, $rem, $add) = @_;
-
-       # print context block before add/rem block
-       if (@$ctx) {
-               print join '',
-                       '<div class="chunk_block ctx">',
-                               '<div class="old">',
-                               @$ctx,
-                               '</div>',
-                               '<div class="new">',
-                               @$ctx,
-                               '</div>',
-                       '</div>';
-       }
-
-       if (!@$add) {
-               # pure removal
-               print join '',
-                       '<div class="chunk_block rem">',
-                               '<div class="old">',
-                               @$rem,
-                               '</div>',
-                       '</div>';
-       } elsif (!@$rem) {
-               # pure addition
-               print join '',
-                       '<div class="chunk_block add">',
-                               '<div class="new">',
-                               @$add,
-                               '</div>',
-                       '</div>';
-       } else {
-               print join '',
-                       '<div class="chunk_block chg">',
-                               '<div class="old">',
-                               @$rem,
-                               '</div>',
-                               '<div class="new">',
-                               @$add,
-                               '</div>',
-                       '</div>';
-       }
-}
-
-# Print context lines and then rem/add lines in inline manner.
-sub print_inline_diff_lines {
-       my ($ctx, $rem, $add) = @_;
-
-       print @$ctx, @$rem, @$add;
-}
-
-# Format removed and added line, mark changed part and HTML-format them.
-# Implementation is based on contrib/diff-highlight
-sub format_rem_add_lines_pair {
-       my ($rem, $add, $num_parents) = @_;
-
-       # We need to untabify lines before split()'ing them;
-       # otherwise offsets would be invalid.
-       chomp $rem;
-       chomp $add;
-       $rem = untabify($rem);
-       $add = untabify($add);
-
-       my @rem = split(//, $rem);
-       my @add = split(//, $add);
-       my ($esc_rem, $esc_add);
-       # Ignore leading +/- characters for each parent.
-       my ($prefix_len, $suffix_len) = ($num_parents, 0);
-       my ($prefix_has_nonspace, $suffix_has_nonspace);
-
-       my $shorter = (@rem < @add) ? @rem : @add;
-       while ($prefix_len < $shorter) {
-               last if ($rem[$prefix_len] ne $add[$prefix_len]);
-
-               $prefix_has_nonspace = 1 if ($rem[$prefix_len] !~ /\s/);
-               $prefix_len++;
-       }
-
-       while ($prefix_len + $suffix_len < $shorter) {
-               last if ($rem[-1 - $suffix_len] ne $add[-1 - $suffix_len]);
-
-               $suffix_has_nonspace = 1 if ($rem[-1 - $suffix_len] !~ /\s/);
-               $suffix_len++;
-       }
-
-       # Mark lines that are different from each other, but have some common
-       # part that isn't whitespace.  If lines are completely different, don't
-       # mark them because that would make output unreadable, especially if
-       # diff consists of multiple lines.
-       if ($prefix_has_nonspace || $suffix_has_nonspace) {
-               $esc_rem = esc_html_hl_regions($rem, 'marked',
-                       [$prefix_len, @rem - $suffix_len], -nbsp=>1);
-               $esc_add = esc_html_hl_regions($add, 'marked',
-                       [$prefix_len, @add - $suffix_len], -nbsp=>1);
-       } else {
-               $esc_rem = esc_html($rem, -nbsp=>1);
-               $esc_add = esc_html($add, -nbsp=>1);
-       }
-
-       return format_diff_line(\$esc_rem, 'rem'),
-              format_diff_line(\$esc_add, 'add');
-}
-
-# HTML-format diff context, removed and added lines.
-sub format_ctx_rem_add_lines {
-       my ($ctx, $rem, $add, $num_parents) = @_;
-       my (@new_ctx, @new_rem, @new_add);
-       my $can_highlight = 0;
-       my $is_combined = ($num_parents > 1);
-
-       # Highlight if every removed line has a corresponding added line.
-       if (@$add > 0 && @$add == @$rem) {
-               $can_highlight = 1;
-
-               # Highlight lines in combined diff only if the chunk contains
-               # diff between the same version, e.g.
-               #
-               #    - a
-               #   -  b
-               #    + c
-               #   +  d
-               #
-               # Otherwise the highlightling would be confusing.
-               if ($is_combined) {
-                       for (my $i = 0; $i < @$add; $i++) {
-                               my $prefix_rem = substr($rem->[$i], 0, $num_parents);
-                               my $prefix_add = substr($add->[$i], 0, $num_parents);
-
-                               $prefix_rem =~ s/-/+/g;
-
-                               if ($prefix_rem ne $prefix_add) {
-                                       $can_highlight = 0;
-                                       last;
-                               }
-                       }
-               }
-       }
-
-       if ($can_highlight) {
-               for (my $i = 0; $i < @$add; $i++) {
-                       my ($line_rem, $line_add) = format_rem_add_lines_pair(
-                               $rem->[$i], $add->[$i], $num_parents);
-                       push @new_rem, $line_rem;
-                       push @new_add, $line_add;
-               }
-       } else {
-               @new_rem = map { format_diff_line($_, 'rem') } @$rem;
-               @new_add = map { format_diff_line($_, 'add') } @$add;
-       }
-
-       @new_ctx = map { format_diff_line($_, 'ctx') } @$ctx;
-
-       return (\@new_ctx, \@new_rem, \@new_add);
-}
-
-# Print context lines and then rem/add lines.
-sub print_diff_lines {
-       my ($ctx, $rem, $add, $diff_style, $num_parents) = @_;
-       my $is_combined = $num_parents > 1;
-
-       ($ctx, $rem, $add) = format_ctx_rem_add_lines($ctx, $rem, $add,
-               $num_parents);
-
-       if ($diff_style eq 'sidebyside' && !$is_combined) {
-               print_sidebyside_diff_lines($ctx, $rem, $add);
-       } else {
-               # default 'inline' style and unknown styles
-               print_inline_diff_lines($ctx, $rem, $add);
-       }
-}
-
-sub print_diff_chunk {
-       my ($diff_style, $num_parents, $from, $to, @chunk) = @_;
-       my (@ctx, @rem, @add);
-
-       # The class of the previous line.
-       my $prev_class = '';
-
-       return unless @chunk;
-
-       # incomplete last line might be among removed or added lines,
-       # or both, or among context lines: find which
-       for (my $i = 1; $i < @chunk; $i++) {
-               if ($chunk[$i][0] eq 'incomplete') {
-                       $chunk[$i][0] = $chunk[$i-1][0];
-               }
-       }
-
-       # guardian
-       push @chunk, ["", ""];
-
-       foreach my $line_info (@chunk) {
-               my ($class, $line) = @$line_info;
-
-               # print chunk headers
-               if ($class && $class eq 'chunk_header') {
-                       print format_diff_line($line, $class, $from, $to);
-                       next;
-               }
-
-               ## print from accumulator when have some add/rem lines or end
-               # of chunk (flush context lines), or when have add and rem
-               # lines and new block is reached (otherwise add/rem lines could
-               # be reordered)
-               if (!$class || ((@rem || @add) && $class eq 'ctx') ||
-                   (@rem && @add && $class ne $prev_class)) {
-                       print_diff_lines(\@ctx, \@rem, \@add,
-                                        $diff_style, $num_parents);
-                       @ctx = @rem = @add = ();
-               }
-
-               ## adding lines to accumulator
-               # guardian value
-               last unless $line;
-               # rem, add or change
-               if ($class eq 'rem') {
-                       push @rem, $line;
-               } elsif ($class eq 'add') {
-                       push @add, $line;
-               }
-               # context line
-               if ($class eq 'ctx') {
-                       push @ctx, $line;
-               }
-
-               $prev_class = $class;
-       }
-}
-
-sub git_patchset_body {
-       my ($fd, $diff_style, $difftree, $hash, @hash_parents) = @_;
-       my ($hash_parent) = $hash_parents[0];
-
-       my $is_combined = (@hash_parents > 1);
-       my $patch_idx = 0;
-       my $patch_number = 0;
-       my $patch_line;
-       my $diffinfo;
-       my $to_name;
-       my (%from, %to);
-       my @chunk; # for side-by-side diff
-
-       print "<div class=\"patchset\">\n";
-
-       # skip to first patch
-       while ($patch_line = <$fd>) {
-               chomp $patch_line;
-
-               last if ($patch_line =~ m/^diff /);
-       }
-
- PATCH:
-       while ($patch_line) {
-
-               # parse "git diff" header line
-               if ($patch_line =~ m/^diff --git (\"(?:[^\\\"]*(?:\\.[^\\\"]*)*)\"|[^ "]*) (.*)$/) {
-                       # $1 is from_name, which we do not use
-                       $to_name = unquote($2);
-                       $to_name =~ s!^b/!!;
-               } elsif ($patch_line =~ m/^diff --(cc|combined) ("?.*"?)$/) {
-                       # $1 is 'cc' or 'combined', which we do not use
-                       $to_name = unquote($2);
-               } else {
-                       $to_name = undef;
-               }
-
-               # check if current patch belong to current raw line
-               # and parse raw git-diff line if needed
-               if (is_patch_split($diffinfo, { 'to_file' => $to_name })) {
-                       # this is continuation of a split patch
-                       print "<div class=\"patch cont\">\n";
-               } else {
-                       # advance raw git-diff output if needed
-                       $patch_idx++ if defined $diffinfo;
-
-                       # read and prepare patch information
-                       $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
-
-                       # compact combined diff output can have some patches skipped
-                       # find which patch (using pathname of result) we are at now;
-                       if ($is_combined) {
-                               while ($to_name ne $diffinfo->{'to_file'}) {
-                                       print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
-                                             format_diff_cc_simplified($diffinfo, @hash_parents) .
-                                             "</div>\n";  # class="patch"
-
-                                       $patch_idx++;
-                                       $patch_number++;
-
-                                       last if $patch_idx > $#$difftree;
-                                       $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
-                               }
-                       }
-
-                       # modifies %from, %to hashes
-                       parse_from_to_diffinfo($diffinfo, \%from, \%to, @hash_parents);
-
-                       # this is first patch for raw difftree line with $patch_idx index
-                       # we index @$difftree array from 0, but number patches from 1
-                       print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
-               }
-
-               # git diff header
-               #assert($patch_line =~ m/^diff /) if DEBUG;
-               #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
-               $patch_number++;
-               # print "git diff" header
-               print format_git_diff_header_line($patch_line, $diffinfo,
-                                                 \%from, \%to);
-
-               # print extended diff header
-               print "<div class=\"diff extended_header\">\n";
-       EXTENDED_HEADER:
-               while ($patch_line = <$fd>) {
-                       chomp $patch_line;
-
-                       last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
-
-                       print format_extended_diff_header_line($patch_line, $diffinfo,
-                                                              \%from, \%to);
-               }
-               print "</div>\n"; # class="diff extended_header"
-
-               # from-file/to-file diff header
-               if (! $patch_line) {
-                       print "</div>\n"; # class="patch"
-                       last PATCH;
-               }
-               next PATCH if ($patch_line =~ m/^diff /);
-               #assert($patch_line =~ m/^---/) if DEBUG;
-
-               my $last_patch_line = $patch_line;
-               $patch_line = <$fd>;
-               chomp $patch_line;
-               #assert($patch_line =~ m/^\+\+\+/) if DEBUG;
-
-               print format_diff_from_to_header($last_patch_line, $patch_line,
-                                                $diffinfo, \%from, \%to,
-                                                @hash_parents);
-
-               # the patch itself
-       LINE:
-               while ($patch_line = <$fd>) {
-                       chomp $patch_line;
-
-                       next PATCH if ($patch_line =~ m/^diff /);
-
-                       my $class = diff_line_class($patch_line, \%from, \%to);
-
-                       if ($class eq 'chunk_header') {
-                               print_diff_chunk($diff_style, scalar @hash_parents, \%from, \%to, @chunk);
-                               @chunk = ();
-                       }
-
-                       push @chunk, [ $class, $patch_line ];
-               }
-
-       } continue {
-               if (@chunk) {
-                       print_diff_chunk($diff_style, scalar @hash_parents, \%from, \%to, @chunk);
-                       @chunk = ();
-               }
-               print "</div>\n"; # class="patch"
-       }
-
-       # for compact combined (--cc) format, with chunk and patch simplification
-       # the patchset might be empty, but there might be unprocessed raw lines
-       for (++$patch_idx if $patch_number > 0;
-            $patch_idx < @$difftree;
-            ++$patch_idx) {
-               # read and prepare patch information
-               $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
-
-               # generate anchor for "patch" links in difftree / whatchanged part
-               print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
-                     format_diff_cc_simplified($diffinfo, @hash_parents) .
-                     "</div>\n";  # class="patch"
-
-               $patch_number++;
-       }
-
-       if ($patch_number == 0) {
-               if (@hash_parents > 1) {
-                       print "<div class=\"diff nodifferences\">Trivial merge</div>\n";
-               } else {
-                       print "<div class=\"diff nodifferences\">No differences found</div>\n";
-               }
-       }
-
-       print "</div>\n"; # class="patchset"
-}
-
-# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-
-sub git_project_search_form {
-       my ($searchtext, $search_use_regexp) = @_;
-
-       my $limit = '';
-       if ($project_filter) {
-               $limit = " in '$project_filter/'";
-       }
-
-       print "<div class=\"projsearch\">\n";
-       print $cgi->start_form(-method => 'get', -action => $my_uri) .
-             $cgi->hidden(-name => 'a', -value => 'project_list')  . "\n";
-       print $cgi->hidden(-name => 'pf', -value => $project_filter). "\n"
-               if (defined $project_filter);
-       print $cgi->textfield(-name => 's', -value => $searchtext,
-                             -title => "Search project by name and description$limit",
-                             -size => 60) . "\n" .
-             "<span title=\"Extended regular expression\">" .
-             $cgi->checkbox(-name => 'sr', -value => 1, -label => 're',
-                            -checked => $search_use_regexp) .
-             "</span>\n" .
-             $cgi->submit(-name => 'btnS', -value => 'Search') .
-             $cgi->end_form() . "\n" .
-             $cgi->a({-href => href(project => undef, searchtext => undef,
-                                    project_filter => $project_filter)},
-                     esc_html("List all projects$limit")) . "<br />\n";
-       print "</div>\n";
-}
-
-# entry for given @keys needs filling if at least one of keys in list
-# is not present in %$project_info
-sub project_info_needs_filling {
-       my ($project_info, @keys) = @_;
-
-       # return List::MoreUtils::any { !exists $project_info->{$_} } @keys;
-       foreach my $key (@keys) {
-               if (!exists $project_info->{$key}) {
-                       return 1;
-               }
-       }
-       return;
-}
-
-# fills project list info (age, description, owner, category, forks, etc.)
-# for each project in the list, removing invalid projects from
-# returned list, or fill only specified info.
-#
-# Invalid projects are removed from the returned list if and only if you
-# ask 'age' or 'age_string' to be filled, because they are the only fields
-# that run unconditionally git command that requires repository, and
-# therefore do always check if project repository is invalid.
-#
-# USAGE:
-# * fill_project_list_info(\@project_list, 'descr_long', 'ctags')
-#   ensures that 'descr_long' and 'ctags' fields are filled
-# * @project_list = fill_project_list_info(\@project_list)
-#   ensures that all fields are filled (and invalid projects removed)
-#
-# NOTE: modifies $projlist, but does not remove entries from it
-sub fill_project_list_info {
-       my ($projlist, @wanted_keys) = @_;
-       my @projects;
-       my $filter_set = sub { return @_; };
-       if (@wanted_keys) {
-               my %wanted_keys = map { $_ => 1 } @wanted_keys;
-               $filter_set = sub { return grep { $wanted_keys{$_} } @_; };
-       }
-
-       my $show_ctags = gitweb_check_feature('ctags');
- PROJECT:
-       foreach my $pr (@$projlist) {
-               if (project_info_needs_filling($pr, $filter_set->('age', 'age_string'))) {
-                       my (@activity) = git_get_last_activity($pr->{'path'});
-                       unless (@activity) {
-                               next PROJECT;
-                       }
-                       ($pr->{'age'}, $pr->{'age_string'}) = @activity;
-               }
-               if (project_info_needs_filling($pr, $filter_set->('descr', 'descr_long'))) {
-                       my $descr = git_get_project_description($pr->{'path'}) || "";
-                       $descr = to_utf8($descr);
-                       $pr->{'descr_long'} = $descr;
-                       $pr->{'descr'} = chop_str($descr, $projects_list_description_width, 5);
-               }
-               if (project_info_needs_filling($pr, $filter_set->('owner'))) {
-                       $pr->{'owner'} = git_get_project_owner("$pr->{'path'}") || "";
-               }
-               if ($show_ctags &&
-                   project_info_needs_filling($pr, $filter_set->('ctags'))) {
-                       $pr->{'ctags'} = git_get_project_ctags($pr->{'path'});
-               }
-               if ($projects_list_group_categories &&
-                   project_info_needs_filling($pr, $filter_set->('category'))) {
-                       my $cat = git_get_project_category($pr->{'path'}) ||
-                                                          $project_list_default_category;
-                       $pr->{'category'} = to_utf8($cat);
-               }
-
-               push @projects, $pr;
-       }
-
-       return @projects;
-}
-
-sub sort_projects_list {
-       my ($projlist, $order) = @_;
-
-       sub order_str {
-               my $key = shift;
-               return sub { $a->{$key} cmp $b->{$key} };
-       }
-
-       sub order_num_then_undef {
-               my $key = shift;
-               return sub {
-                       defined $a->{$key} ?
-                               (defined $b->{$key} ? $a->{$key} <=> $b->{$key} : -1) :
-                               (defined $b->{$key} ? 1 : 0)
-               };
-       }
-
-       my %orderings = (
-               project => order_str('path'),
-               descr => order_str('descr_long'),
-               owner => order_str('owner'),
-               age => order_num_then_undef('age'),
-       );
-
-       my $ordering = $orderings{$order};
-       return defined $ordering ? sort $ordering @$projlist : @$projlist;
-}
-
-# returns a hash of categories, containing the list of project
-# belonging to each category
-sub build_projlist_by_category {
-       my ($projlist, $from, $to) = @_;
-       my %categories;
-
-       $from = 0 unless defined $from;
-       $to = $#$projlist if (!defined $to || $#$projlist < $to);
-
-       for (my $i = $from; $i <= $to; $i++) {
-               my $pr = $projlist->[$i];
-               push @{$categories{ $pr->{'category'} }}, $pr;
-       }
-
-       return wantarray ? %categories : \%categories;
-}
-
-# print 'sort by' <th> element, generating 'sort by $name' replay link
-# if that order is not selected
-sub print_sort_th {
-       print format_sort_th(@_);
-}
-
-sub format_sort_th {
-       my ($name, $order, $header) = @_;
-       my $sort_th = "";
-       $header ||= ucfirst($name);
-
-       if ($order eq $name) {
-               $sort_th .= "<th>$header</th>\n";
-       } else {
-               $sort_th .= "<th>" .
-                           $cgi->a({-href => href(-replay=>1, order=>$name),
-                                    -class => "header"}, $header) .
-                           "</th>\n";
-       }
-
-       return $sort_th;
-}
-
-sub git_project_list_rows {
-       my ($projlist, $from, $to, $check_forks) = @_;
-
-       $from = 0 unless defined $from;
-       $to = $#$projlist if (!defined $to || $#$projlist < $to);
-
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my $pr = $projlist->[$i];
-
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-
-               if ($check_forks) {
-                       print "<td>";
-                       if ($pr->{'forks'}) {
-                               my $nforks = scalar @{$pr->{'forks'}};
-                               if ($nforks > 0) {
-                                       print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks"),
-                                                      -title => "$nforks forks"}, "+");
-                               } else {
-                                       print $cgi->span({-title => "$nforks forks"}, "+");
-                               }
-                       }
-                       print "</td>\n";
-               }
-               print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
-                                       -class => "list"},
-                                      esc_html_match_hl($pr->{'path'}, $search_regexp)) .
-                     "</td>\n" .
-                     "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
-                                       -class => "list",
-                                       -title => $pr->{'descr_long'}},
-                                       $search_regexp
-                                       ? esc_html_match_hl_chopped($pr->{'descr_long'},
-                                                                   $pr->{'descr'}, $search_regexp)
-                                       : esc_html($pr->{'descr'})) .
-                     "</td>\n";
-               unless ($omit_owner) {
-                       print "<td><i>" . chop_and_escape_str($pr->{'owner'}, 15) . "</i></td>\n";
-               }
-               unless ($omit_age_column) {
-                       print "<td class=\"". age_class($pr->{'age'}) . "\">" .
-                           (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n";
-               }
-               print"<td class=\"link\">" .
-                     $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
-                     $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
-                     $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
-                     $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
-                     ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
-                     "</td>\n" .
-                     "</tr>\n";
-       }
-}
-
-sub git_project_list_body {
-       # actually uses global variable $project
-       my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
-       my @projects = @$projlist;
-
-       my $check_forks = gitweb_check_feature('forks');
-       my $show_ctags  = gitweb_check_feature('ctags');
-       my $tagfilter = $show_ctags ? $input_params{'ctag'} : undef;
-       $check_forks = undef
-               if ($tagfilter || $search_regexp);
-
-       # filtering out forks before filling info allows to do less work
-       @projects = filter_forks_from_projects_list(\@projects)
-               if ($check_forks);
-       # search_projects_list pre-fills required info
-       @projects = search_projects_list(\@projects,
-                                        'search_regexp' => $search_regexp,
-                                        'tagfilter'  => $tagfilter)
-               if ($tagfilter || $search_regexp);
-       # fill the rest
-       my @all_fields = ('descr', 'descr_long', 'ctags', 'category');
-       push @all_fields, ('age', 'age_string') unless($omit_age_column);
-       push @all_fields, 'owner' unless($omit_owner);
-       @projects = fill_project_list_info(\@projects, @all_fields);
-
-       $order ||= $default_projects_order;
-       $from = 0 unless defined $from;
-       $to = $#projects if (!defined $to || $#projects < $to);
-
-       # short circuit
-       if ($from > $to) {
-               print "<center>\n".
-                     "<b>No such projects found</b><br />\n".
-                     "Click ".$cgi->a({-href=>href(project=>undef)},"here")." to view all projects<br />\n".
-                     "</center>\n<br />\n";
-               return;
-       }
-
-       @projects = sort_projects_list(\@projects, $order);
-
-       if ($show_ctags) {
-               my $ctags = git_gather_all_ctags(\@projects);
-               my $cloud = git_populate_project_tagcloud($ctags);
-               print git_show_project_tagcloud($cloud, 64);
-       }
-
-       print "<table class=\"project_list\">\n";
-       unless ($no_header) {
-               print "<tr>\n";
-               if ($check_forks) {
-                       print "<th></th>\n";
-               }
-               print_sort_th('project', $order, 'Project');
-               print_sort_th('descr', $order, 'Description');
-               print_sort_th('owner', $order, 'Owner') unless $omit_owner;
-               print_sort_th('age', $order, 'Last Change') unless $omit_age_column;
-               print "<th></th>\n" . # for links
-                     "</tr>\n";
-       }
-
-       if ($projects_list_group_categories) {
-               # only display categories with projects in the $from-$to window
-               @projects = sort {$a->{'category'} cmp $b->{'category'}} @projects[$from..$to];
-               my %categories = build_projlist_by_category(\@projects, $from, $to);
-               foreach my $cat (sort keys %categories) {
-                       unless ($cat eq "") {
-                               print "<tr>\n";
-                               if ($check_forks) {
-                                       print "<td></td>\n";
-                               }
-                               print "<td class=\"category\" colspan=\"5\">".esc_html($cat)."</td>\n";
-                               print "</tr>\n";
-                       }
-
-                       git_project_list_rows($categories{$cat}, undef, undef, $check_forks);
-               }
-       } else {
-               git_project_list_rows(\@projects, $from, $to, $check_forks);
-       }
-
-       if (defined $extra) {
-               print "<tr>\n";
-               if ($check_forks) {
-                       print "<td></td>\n";
-               }
-               print "<td colspan=\"5\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-sub git_log_body {
-       # uses global variable $project
-       my ($commitlist, $from, $to, $refs, $extra) = @_;
-
-       $from = 0 unless defined $from;
-       $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
-
-       for (my $i = 0; $i <= $to; $i++) {
-               my %co = %{$commitlist->[$i]};
-               next if !%co;
-               my $commit = $co{'id'};
-               my $ref = format_ref_marker($refs, $commit);
-               git_print_header_div('commit',
-                              "<span class=\"age\">$co{'age_string'}</span>" .
-                              esc_html($co{'title'}) . $ref,
-                              $commit);
-               print "<div class=\"title_text\">\n" .
-                     "<div class=\"log_link\">\n" .
-                     $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
-                     " | " .
-                     $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
-                     " | " .
-                     $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
-                     "<br/>\n" .
-                     "</div>\n";
-                     git_print_authorship(\%co, -tag => 'span');
-                     print "<br/>\n</div>\n";
-
-               print "<div class=\"log_body\">\n";
-               git_print_log($co{'comment'}, -final_empty_line=> 1);
-               print "</div>\n";
-       }
-       if ($extra) {
-               print "<div class=\"page_nav\">\n";
-               print "$extra\n";
-               print "</div>\n";
-       }
-}
-
-sub git_shortlog_body {
-       # uses global variable $project
-       my ($commitlist, $from, $to, $refs, $extra) = @_;
-
-       $from = 0 unless defined $from;
-       $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
-
-       print "<table class=\"shortlog\">\n";
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my %co = %{$commitlist->[$i]};
-               my $commit = $co{'id'};
-               my $ref = format_ref_marker($refs, $commit);
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
-               print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-                     format_author_html('td', \%co, 10) . "<td>";
-               print format_subject_html($co{'title'}, $co{'title_short'},
-                                         href(action=>"commit", hash=>$commit), $ref);
-               print "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
-                     $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
-                     $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
-               my $snapshot_links = format_snapshot_links($commit);
-               if (defined $snapshot_links) {
-                       print " | " . $snapshot_links;
-               }
-               print "</td>\n" .
-                     "</tr>\n";
-       }
-       if (defined $extra) {
-               print "<tr>\n" .
-                     "<td colspan=\"4\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-sub git_history_body {
-       # Warning: assumes constant type (blob or tree) during history
-       my ($commitlist, $from, $to, $refs, $extra,
-           $file_name, $file_hash, $ftype) = @_;
-
-       $from = 0 unless defined $from;
-       $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
-
-       print "<table class=\"history\">\n";
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my %co = %{$commitlist->[$i]};
-               if (!%co) {
-                       next;
-               }
-               my $commit = $co{'id'};
-
-               my $ref = format_ref_marker($refs, $commit);
-
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-       # shortlog:   format_author_html('td', \%co, 10)
-                     format_author_html('td', \%co, 15, 3) . "<td>";
-               # originally git_history used chop_str($co{'title'}, 50)
-               print format_subject_html($co{'title'}, $co{'title_short'},
-                                         href(action=>"commit", hash=>$commit), $ref);
-               print "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
-                     $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
-
-               if ($ftype eq 'blob') {
-                       my $blob_current = $file_hash;
-                       my $blob_parent  = git_get_hash_by_path($commit, $file_name);
-                       if (defined $blob_current && defined $blob_parent &&
-                                       $blob_current ne $blob_parent) {
-                               print " | " .
-                                       $cgi->a({-href => href(action=>"blobdiff",
-                                                              hash=>$blob_current, hash_parent=>$blob_parent,
-                                                              hash_base=>$hash_base, hash_parent_base=>$commit,
-                                                              file_name=>$file_name)},
-                                               "diff to current");
-                       }
-               }
-               print "</td>\n" .
-                     "</tr>\n";
-       }
-       if (defined $extra) {
-               print "<tr>\n" .
-                     "<td colspan=\"4\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-sub git_tags_body {
-       # uses global variable $project
-       my ($taglist, $from, $to, $extra) = @_;
-       $from = 0 unless defined $from;
-       $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
-
-       print "<table class=\"tags\">\n";
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my $entry = $taglist->[$i];
-               my %tag = %$entry;
-               my $comment = $tag{'subject'};
-               my $comment_short;
-               if (defined $comment) {
-                       $comment_short = chop_str($comment, 30, 5);
-               }
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               if (defined $tag{'age'}) {
-                       print "<td><i>$tag{'age'}</i></td>\n";
-               } else {
-                       print "<td></td>\n";
-               }
-               print "<td>" .
-                     $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
-                              -class => "list name"}, esc_html($tag{'name'})) .
-                     "</td>\n" .
-                     "<td>";
-               if (defined $comment) {
-                       print format_subject_html($comment, $comment_short,
-                                                 href(action=>"tag", hash=>$tag{'id'}));
-               }
-               print "</td>\n" .
-                     "<td class=\"selflink\">";
-               if ($tag{'type'} eq "tag") {
-                       print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
-               } else {
-                       print "&nbsp;";
-               }
-               print "</td>\n" .
-                     "<td class=\"link\">" . " | " .
-                     $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
-               if ($tag{'reftype'} eq "commit") {
-                       print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'fullname'})}, "shortlog") .
-                             " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'fullname'})}, "log");
-               } elsif ($tag{'reftype'} eq "blob") {
-                       print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
-               }
-               print "</td>\n" .
-                     "</tr>";
-       }
-       if (defined $extra) {
-               print "<tr>\n" .
-                     "<td colspan=\"5\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-sub git_heads_body {
-       # uses global variable $project
-       my ($headlist, $head_at, $from, $to, $extra) = @_;
-       $from = 0 unless defined $from;
-       $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
-
-       print "<table class=\"heads\">\n";
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my $entry = $headlist->[$i];
-               my %ref = %$entry;
-               my $curr = defined $head_at && $ref{'id'} eq $head_at;
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               print "<td><i>$ref{'age'}</i></td>\n" .
-                     ($curr ? "<td class=\"current_head\">" : "<td>") .
-                     $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'fullname'}),
-                              -class => "list name"},esc_html($ref{'name'})) .
-                     "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'fullname'})}, "shortlog") . " | " .
-                     $cgi->a({-href => href(action=>"log", hash=>$ref{'fullname'})}, "log") . " | " .
-                     $cgi->a({-href => href(action=>"tree", hash=>$ref{'fullname'}, hash_base=>$ref{'fullname'})}, "tree") .
-                     "</td>\n" .
-                     "</tr>";
-       }
-       if (defined $extra) {
-               print "<tr>\n" .
-                     "<td colspan=\"3\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-# Display a single remote block
-sub git_remote_block {
-       my ($remote, $rdata, $limit, $head) = @_;
-
-       my $heads = $rdata->{'heads'};
-       my $fetch = $rdata->{'fetch'};
-       my $push = $rdata->{'push'};
-
-       my $urls_table = "<table class=\"projects_list\">\n" ;
-
-       if (defined $fetch) {
-               if ($fetch eq $push) {
-                       $urls_table .= format_repo_url("URL", $fetch);
-               } else {
-                       $urls_table .= format_repo_url("Fetch URL", $fetch);
-                       $urls_table .= format_repo_url("Push URL", $push) if defined $push;
-               }
-       } elsif (defined $push) {
-               $urls_table .= format_repo_url("Push URL", $push);
-       } else {
-               $urls_table .= format_repo_url("", "No remote URL");
-       }
-
-       $urls_table .= "</table>\n";
-
-       my $dots;
-       if (defined $limit && $limit < @$heads) {
-               $dots = $cgi->a({-href => href(action=>"remotes", hash=>$remote)}, "...");
-       }
-
-       print $urls_table;
-       git_heads_body($heads, $head, 0, $limit, $dots);
-}
-
-# Display a list of remote names with the respective fetch and push URLs
-sub git_remotes_list {
-       my ($remotedata, $limit) = @_;
-       print "<table class=\"heads\">\n";
-       my $alternate = 1;
-       my @remotes = sort keys %$remotedata;
-
-       my $limited = $limit && $limit < @remotes;
-
-       $#remotes = $limit - 1 if $limited;
-
-       while (my $remote = shift @remotes) {
-               my $rdata = $remotedata->{$remote};
-               my $fetch = $rdata->{'fetch'};
-               my $push = $rdata->{'push'};
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               print "<td>" .
-                     $cgi->a({-href=> href(action=>'remotes', hash=>$remote),
-                              -class=> "list name"},esc_html($remote)) .
-                     "</td>";
-               print "<td class=\"link\">" .
-                     (defined $fetch ? $cgi->a({-href=> $fetch}, "fetch") : "fetch") .
-                     " | " .
-                     (defined $push ? $cgi->a({-href=> $push}, "push") : "push") .
-                     "</td>";
-
-               print "</tr>\n";
-       }
-
-       if ($limited) {
-               print "<tr>\n" .
-                     "<td colspan=\"3\">" .
-                     $cgi->a({-href => href(action=>"remotes")}, "...") .
-                     "</td>\n" . "</tr>\n";
-       }
-
-       print "</table>";
-}
-
-# Display remote heads grouped by remote, unless there are too many
-# remotes, in which case we only display the remote names
-sub git_remotes_body {
-       my ($remotedata, $limit, $head) = @_;
-       if ($limit and $limit < keys %$remotedata) {
-               git_remotes_list($remotedata, $limit);
-       } else {
-               fill_remote_heads($remotedata);
-               while (my ($remote, $rdata) = each %$remotedata) {
-                       git_print_section({-class=>"remote", -id=>$remote},
-                               ["remotes", $remote, $remote], sub {
-                                       git_remote_block($remote, $rdata, $limit, $head);
-                               });
-               }
-       }
-}
-
-sub git_search_message {
-       my %co = @_;
-
-       my $greptype;
-       if ($searchtype eq 'commit') {
-               $greptype = "--grep=";
-       } elsif ($searchtype eq 'author') {
-               $greptype = "--author=";
-       } elsif ($searchtype eq 'committer') {
-               $greptype = "--committer=";
-       }
-       $greptype .= $searchtext;
-       my @commitlist = parse_commits($hash, 101, (100 * $page), undef,
-                                      $greptype, '--regexp-ignore-case',
-                                      $search_use_regexp ? '--extended-regexp' : '--fixed-strings');
-
-       my $paging_nav = '';
-       if ($page > 0) {
-               $paging_nav .=
-                       $cgi->a({-href => href(-replay=>1, page=>undef)},
-                               "first") .
-                       " &sdot; " .
-                       $cgi->a({-href => href(-replay=>1, page=>$page-1),
-                                -accesskey => "p", -title => "Alt-p"}, "prev");
-       } else {
-               $paging_nav .= "first &sdot; prev";
-       }
-       my $next_link = '';
-       if ($#commitlist >= 100) {
-               $next_link =
-                       $cgi->a({-href => href(-replay=>1, page=>$page+1),
-                                -accesskey => "n", -title => "Alt-n"}, "next");
-               $paging_nav .= " &sdot; $next_link";
-       } else {
-               $paging_nav .= " &sdot; next";
-       }
-
-       git_header_html();
-
-       git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
-       git_print_header_div('commit', esc_html($co{'title'}), $hash);
-       if ($page == 0 && !@commitlist) {
-               print "<p>No match.</p>\n";
-       } else {
-               git_search_grep_body(\@commitlist, 0, 99, $next_link);
-       }
-
-       git_footer_html();
-}
-
-sub git_search_changes {
-       my %co = @_;
-
-       local $/ = "\n";
-       open my $fd, '-|', git_cmd(), '--no-pager', 'log', @diff_opts,
-               '--pretty=format:%H', '--no-abbrev', '--raw', "-S$searchtext",
-               ($search_use_regexp ? '--pickaxe-regex' : ())
-                       or die_error(500, "Open git-log failed");
-
-       git_header_html();
-
-       git_print_page_nav('','', $hash,$co{'tree'},$hash);
-       git_print_header_div('commit', esc_html($co{'title'}), $hash);
-
-       print "<table class=\"pickaxe search\">\n";
-       my $alternate = 1;
-       undef %co;
-       my @files;
-       while (my $line = <$fd>) {
-               chomp $line;
-               next unless $line;
-
-               my %set = parse_difftree_raw_line($line);
-               if (defined $set{'commit'}) {
-                       # finish previous commit
-                       if (%co) {
-                               print "</td>\n" .
-                                     "<td class=\"link\">" .
-                                     $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})},
-                                             "commit") .
-                                     " | " .
-                                     $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'},
-                                                            hash_base=>$co{'id'})},
-                                             "tree") .
-                                     "</td>\n" .
-                                     "</tr>\n";
-                       }
-
-                       if ($alternate) {
-                               print "<tr class=\"dark\">\n";
-                       } else {
-                               print "<tr class=\"light\">\n";
-                       }
-                       $alternate ^= 1;
-                       %co = parse_commit($set{'commit'});
-                       my $author = chop_and_escape_str($co{'author_name'}, 15, 5);
-                       print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-                             "<td><i>$author</i></td>\n" .
-                             "<td>" .
-                             $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
-                                     -class => "list subject"},
-                                     chop_and_escape_str($co{'title'}, 50) . "<br/>");
-               } elsif (defined $set{'to_id'}) {
-                       next if ($set{'to_id'} =~ m/^0{40}$/);
-
-                       print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
-                                                    hash=>$set{'to_id'}, file_name=>$set{'to_file'}),
-                                     -class => "list"},
-                                     "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
-                             "<br/>\n";
-               }
-       }
-       close $fd;
-
-       # finish last commit (warning: repetition!)
-       if (%co) {
-               print "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})},
-                             "commit") .
-                     " | " .
-                     $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'},
-                                            hash_base=>$co{'id'})},
-                             "tree") .
-                     "</td>\n" .
-                     "</tr>\n";
-       }
-
-       print "</table>\n";
-
-       git_footer_html();
-}
-
-sub git_search_files {
-       my %co = @_;
-
-       local $/ = "\n";
-       open my $fd, "-|", git_cmd(), 'grep', '-n', '-z',
-               $search_use_regexp ? ('-E', '-i') : '-F',
-               $searchtext, $co{'tree'}
-                       or die_error(500, "Open git-grep failed");
-
-       git_header_html();
-
-       git_print_page_nav('','', $hash,$co{'tree'},$hash);
-       git_print_header_div('commit', esc_html($co{'title'}), $hash);
-
-       print "<table class=\"grep_search\">\n";
-       my $alternate = 1;
-       my $matches = 0;
-       my $lastfile = '';
-       my $file_href;
-       while (my $line = <$fd>) {
-               chomp $line;
-               my ($file, $lno, $ltext, $binary);
-               last if ($matches++ > 1000);
-               if ($line =~ /^Binary file (.+) matches$/) {
-                       $file = $1;
-                       $binary = 1;
-               } else {
-                       ($file, $lno, $ltext) = split(/\0/, $line, 3);
-                       $file =~ s/^$co{'tree'}://;
-               }
-               if ($file ne $lastfile) {
-                       $lastfile and print "</td></tr>\n";
-                       if ($alternate++) {
-                               print "<tr class=\"dark\">\n";
-                       } else {
-                               print "<tr class=\"light\">\n";
-                       }
-                       $file_href = href(action=>"blob", hash_base=>$co{'id'},
-                                         file_name=>$file);
-                       print "<td class=\"list\">".
-                               $cgi->a({-href => $file_href, -class => "list"}, esc_path($file));
-                       print "</td><td>\n";
-                       $lastfile = $file;
-               }
-               if ($binary) {
-                       print "<div class=\"binary\">Binary file</div>\n";
-               } else {
-                       $ltext = untabify($ltext);
-                       if ($ltext =~ m/^(.*)($search_regexp)(.*)$/i) {
-                               $ltext = esc_html($1, -nbsp=>1);
-                               $ltext .= '<span class="match">';
-                               $ltext .= esc_html($2, -nbsp=>1);
-                               $ltext .= '</span>';
-                               $ltext .= esc_html($3, -nbsp=>1);
-                       } else {
-                               $ltext = esc_html($ltext, -nbsp=>1);
-                       }
-                       print "<div class=\"pre\">" .
-                               $cgi->a({-href => $file_href.'#l'.$lno,
-                                       -class => "linenr"}, sprintf('%4i', $lno)) .
-                               ' ' .  $ltext . "</div>\n";
-               }
-       }
-       if ($lastfile) {
-               print "</td></tr>\n";
-               if ($matches > 1000) {
-                       print "<div class=\"diff nodifferences\">Too many matches, listing trimmed</div>\n";
-               }
-       } else {
-               print "<div class=\"diff nodifferences\">No matches found</div>\n";
-       }
-       close $fd;
-
-       print "</table>\n";
-
-       git_footer_html();
-}
-
-sub git_search_grep_body {
-       my ($commitlist, $from, $to, $extra) = @_;
-       $from = 0 unless defined $from;
-       $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
-
-       print "<table class=\"commit_search\">\n";
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my %co = %{$commitlist->[$i]};
-               if (!%co) {
-                       next;
-               }
-               my $commit = $co{'id'};
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-                     format_author_html('td', \%co, 15, 5) .
-                     "<td>" .
-                     $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
-                              -class => "list subject"},
-                             chop_and_escape_str($co{'title'}, 50) . "<br/>");
-               my $comment = $co{'comment'};
-               foreach my $line (@$comment) {
-                       if ($line =~ m/^(.*?)($search_regexp)(.*)$/i) {
-                               my ($lead, $match, $trail) = ($1, $2, $3);
-                               $match = chop_str($match, 70, 5, 'center');
-                               my $contextlen = int((80 - length($match))/2);
-                               $contextlen = 30 if ($contextlen > 30);
-                               $lead  = chop_str($lead,  $contextlen, 10, 'left');
-                               $trail = chop_str($trail, $contextlen, 10, 'right');
-
-                               $lead  = esc_html($lead);
-                               $match = esc_html($match);
-                               $trail = esc_html($trail);
-
-                               print "$lead<span class=\"match\">$match</span>$trail<br />";
-                       }
-               }
-               print "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
-                     " | " .
-                     $cgi->a({-href => href(action=>"commitdiff", hash=>$co{'id'})}, "commitdiff") .
-                     " | " .
-                     $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
-               print "</td>\n" .
-                     "</tr>\n";
-       }
-       if (defined $extra) {
-               print "<tr>\n" .
-                     "<td colspan=\"3\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-## ======================================================================
-## ======================================================================
-## actions
-
-sub git_project_list {
-       my $order = $input_params{'order'};
-       if (defined $order && $order !~ m/none|project|descr|owner|age/) {
-               die_error(400, "Unknown order parameter");
-       }
-
-       my @list = git_get_projects_list($project_filter, $strict_export);
-       if (!@list) {
-               die_error(404, "No projects found");
-       }
-
-       git_header_html();
-       if (defined $home_text && -f $home_text) {
-               print "<div class=\"index_include\">\n";
-               insert_file($home_text);
-               print "</div>\n";
-       }
-
-       git_project_search_form($searchtext, $search_use_regexp);
-       git_project_list_body(\@list, $order);
-       git_footer_html();
-}
-
-sub git_forks {
-       my $order = $input_params{'order'};
-       if (defined $order && $order !~ m/none|project|descr|owner|age/) {
-               die_error(400, "Unknown order parameter");
-       }
-
-       my $filter = $project;
-       $filter =~ s/\.git$//;
-       my @list = git_get_projects_list($filter);
-       if (!@list) {
-               die_error(404, "No forks found");
-       }
-
-       git_header_html();
-       git_print_page_nav('','');
-       git_print_header_div('summary', "$project forks");
-       git_project_list_body(\@list, $order);
-       git_footer_html();
-}
-
-sub git_project_index {
-       my @projects = git_get_projects_list($project_filter, $strict_export);
-       if (!@projects) {
-               die_error(404, "No projects found");
-       }
-
-       print $cgi->header(
-               -type => 'text/plain',
-               -charset => 'utf-8',
-               -content_disposition => 'inline; filename="index.aux"');
-
-       foreach my $pr (@projects) {
-               if (!exists $pr->{'owner'}) {
-                       $pr->{'owner'} = git_get_project_owner("$pr->{'path'}");
-               }
-
-               my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
-               # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
-               $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
-               $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
-               $path  =~ s/ /\+/g;
-               $owner =~ s/ /\+/g;
-
-               print "$path $owner\n";
-       }
-}
-
-sub git_summary {
-       my $descr = git_get_project_description($project) || "none";
-       my %co = parse_commit("HEAD");
-       my %cd = %co ? parse_date($co{'committer_epoch'}, $co{'committer_tz'}) : ();
-       my $head = $co{'id'};
-       my $remote_heads = gitweb_check_feature('remote_heads');
-
-       my $owner = git_get_project_owner($project);
-
-       my $refs = git_get_references();
-       # These get_*_list functions return one more to allow us to see if
-       # there are more ...
-       my @taglist  = git_get_tags_list(16);
-       my @headlist = git_get_heads_list(16);
-       my %remotedata = $remote_heads ? git_get_remotes_list() : ();
-       my @forklist;
-       my $check_forks = gitweb_check_feature('forks');
-
-       if ($check_forks) {
-               # find forks of a project
-               my $filter = $project;
-               $filter =~ s/\.git$//;
-               @forklist = git_get_projects_list($filter);
-               # filter out forks of forks
-               @forklist = filter_forks_from_projects_list(\@forklist)
-                       if (@forklist);
-       }
-
-       git_header_html();
-       git_print_page_nav('summary','', $head);
-
-       print "<div class=\"title\">&nbsp;</div>\n";
-       print "<table class=\"projects_list\">\n" .
-             "<tr id=\"metadata_desc\"><td>description</td><td>" . esc_html($descr) . "</td></tr>\n";
-        if ($owner and not $omit_owner) {
-               print  "<tr id=\"metadata_owner\"><td>owner</td><td>" . esc_html($owner) . "</td></tr>\n";
-        }
-       if (defined $cd{'rfc2822'}) {
-               print "<tr id=\"metadata_lchange\"><td>last change</td>" .
-                     "<td>".format_timestamp_html(\%cd)."</td></tr>\n";
-       }
-
-       # use per project git URL list in $projectroot/$project/cloneurl
-       # or make project git URL from git base URL and project name
-       my $url_tag = "URL";
-       my @url_list = git_get_project_url_list($project);
-       @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
-       foreach my $git_url (@url_list) {
-               next unless $git_url;
-               print format_repo_url($url_tag, $git_url);
-               $url_tag = "";
-       }
-
-       # Tag cloud
-       my $show_ctags = gitweb_check_feature('ctags');
-       if ($show_ctags) {
-               my $ctags = git_get_project_ctags($project);
-               if (%$ctags) {
-                       # without ability to add tags, don't show if there are none
-                       my $cloud = git_populate_project_tagcloud($ctags);
-                       print "<tr id=\"metadata_ctags\">" .
-                             "<td>content tags</td>" .
-                             "<td>".git_show_project_tagcloud($cloud, 48)."</td>" .
-                             "</tr>\n";
-               }
-       }
-
-       print "</table>\n";
-
-       # If XSS prevention is on, we don't include README.html.
-       # TODO: Allow a readme in some safe format.
-       if (!$prevent_xss && -s "$projectroot/$project/README.html") {
-               print "<div class=\"title\">readme</div>\n" .
-                     "<div class=\"readme\">\n";
-               insert_file("$projectroot/$project/README.html");
-               print "\n</div>\n"; # class="readme"
-       }
-
-       # we need to request one more than 16 (0..15) to check if
-       # those 16 are all
-       my @commitlist = $head ? parse_commits($head, 17) : ();
-       if (@commitlist) {
-               git_print_header_div('shortlog');
-               git_shortlog_body(\@commitlist, 0, 15, $refs,
-                                 $#commitlist <=  15 ? undef :
-                                 $cgi->a({-href => href(action=>"shortlog")}, "..."));
-       }
-
-       if (@taglist) {
-               git_print_header_div('tags');
-               git_tags_body(\@taglist, 0, 15,
-                             $#taglist <=  15 ? undef :
-                             $cgi->a({-href => href(action=>"tags")}, "..."));
-       }
-
-       if (@headlist) {
-               git_print_header_div('heads');
-               git_heads_body(\@headlist, $head, 0, 15,
-                              $#headlist <= 15 ? undef :
-                              $cgi->a({-href => href(action=>"heads")}, "..."));
-       }
-
-       if (%remotedata) {
-               git_print_header_div('remotes');
-               git_remotes_body(\%remotedata, 15, $head);
-       }
-
-       if (@forklist) {
-               git_print_header_div('forks');
-               git_project_list_body(\@forklist, 'age', 0, 15,
-                                     $#forklist <= 15 ? undef :
-                                     $cgi->a({-href => href(action=>"forks")}, "..."),
-                                     'no_header');
-       }
-
-       git_footer_html();
-}
-
-sub git_tag {
-       my %tag = parse_tag($hash);
-
-       if (! %tag) {
-               die_error(404, "Unknown tag object");
-       }
-
-       my $head = git_get_head_hash($project);
-       git_header_html();
-       git_print_page_nav('','', $head,undef,$head);
-       git_print_header_div('commit', esc_html($tag{'name'}), $hash);
-       print "<div class=\"title_text\">\n" .
-             "<table class=\"object_header\">\n" .
-             "<tr>\n" .
-             "<td>object</td>\n" .
-             "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
-                              $tag{'object'}) . "</td>\n" .
-             "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
-                                             $tag{'type'}) . "</td>\n" .
-             "</tr>\n";
-       if (defined($tag{'author'})) {
-               git_print_authorship_rows(\%tag, 'author');
-       }
-       print "</table>\n\n" .
-             "</div>\n";
-       print "<div class=\"page_body\">";
-       my $comment = $tag{'comment'};
-       foreach my $line (@$comment) {
-               chomp $line;
-               print esc_html($line, -nbsp=>1) . "<br/>\n";
-       }
-       print "</div>\n";
-       git_footer_html();
-}
-
-sub git_blame_common {
-       my $format = shift || 'porcelain';
-       if ($format eq 'porcelain' && $input_params{'javascript'}) {
-               $format = 'incremental';
-               $action = 'blame_incremental'; # for page title etc
-       }
-
-       # permissions
-       gitweb_check_feature('blame')
-               or die_error(403, "Blame view not allowed");
-
-       # error checking
-       die_error(400, "No file name given") unless $file_name;
-       $hash_base ||= git_get_head_hash($project);
-       die_error(404, "Couldn't find base commit") unless $hash_base;
-       my %co = parse_commit($hash_base)
-               or die_error(404, "Commit not found");
-       my $ftype = "blob";
-       if (!defined $hash) {
-               $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
-                       or die_error(404, "Error looking up file");
-       } else {
-               $ftype = git_get_type($hash);
-               if ($ftype !~ "blob") {
-                       die_error(400, "Object is not a blob");
-               }
-       }
-
-       my $fd;
-       if ($format eq 'incremental') {
-               # get file contents (as base)
-               open $fd, "-|", git_cmd(), 'cat-file', 'blob', $hash
-                       or die_error(500, "Open git-cat-file failed");
-       } elsif ($format eq 'data') {
-               # run git-blame --incremental
-               open $fd, "-|", git_cmd(), "blame", "--incremental",
-                       $hash_base, "--", $file_name
-                       or die_error(500, "Open git-blame --incremental failed");
-       } else {
-               # run git-blame --porcelain
-               open $fd, "-|", git_cmd(), "blame", '-p',
-                       $hash_base, '--', $file_name
-                       or die_error(500, "Open git-blame --porcelain failed");
-       }
-       binmode $fd, ':utf8';
-
-       # incremental blame data returns early
-       if ($format eq 'data') {
-               print $cgi->header(
-                       -type=>"text/plain", -charset => "utf-8",
-                       -status=> "200 OK");
-               local $| = 1; # output autoflush
-               while (my $line = <$fd>) {
-                       print to_utf8($line);
-               }
-               close $fd
-                       or print "ERROR $!\n";
-
-               print 'END';
-               if (defined $t0 && gitweb_check_feature('timed')) {
-                       print ' '.
-                             tv_interval($t0, [ gettimeofday() ]).
-                             ' '.$number_of_git_cmds;
-               }
-               print "\n";
-
-               return;
-       }
-
-       # page header
-       git_header_html();
-       my $formats_nav =
-               $cgi->a({-href => href(action=>"blob", -replay=>1)},
-                       "blob") .
-               " | ";
-       if ($format eq 'incremental') {
-               $formats_nav .=
-                       $cgi->a({-href => href(action=>"blame", javascript=>0, -replay=>1)},
-                               "blame") . " (non-incremental)";
-       } else {
-               $formats_nav .=
-                       $cgi->a({-href => href(action=>"blame_incremental", -replay=>1)},
-                               "blame") . " (incremental)";
-       }
-       $formats_nav .=
-               " | " .
-               $cgi->a({-href => href(action=>"history", -replay=>1)},
-                       "history") .
-               " | " .
-               $cgi->a({-href => href(action=>$action, file_name=>$file_name)},
-                       "HEAD");
-       git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
-       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
-       git_print_page_path($file_name, $ftype, $hash_base);
-
-       # page body
-       if ($format eq 'incremental') {
-               print "<noscript>\n<div class=\"error\"><center><b>\n".
-                     "This page requires JavaScript to run.\n Use ".
-                     $cgi->a({-href => href(action=>'blame',javascript=>0,-replay=>1)},
-                             'this page').
-                     " instead.\n".
-                     "</b></center></div>\n</noscript>\n";
-
-               print qq!<div id="progress_bar" style="width: 100%; background-color: yellow"></div>\n!;
-       }
-
-       print qq!<div class="page_body">\n!;
-       print qq!<div id="progress_info">... / ...</div>\n!
-               if ($format eq 'incremental');
-       print qq!<table id="blame_table" class="blame" width="100%">\n!.
-             #qq!<col width="5.5em" /><col width="2.5em" /><col width="*" />\n!.
-             qq!<thead>\n!.
-             qq!<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n!.
-             qq!</thead>\n!.
-             qq!<tbody>\n!;
-
-       my @rev_color = qw(light dark);
-       my $num_colors = scalar(@rev_color);
-       my $current_color = 0;
-
-       if ($format eq 'incremental') {
-               my $color_class = $rev_color[$current_color];
-
-               #contents of a file
-               my $linenr = 0;
-       LINE:
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       $linenr++;
-
-                       print qq!<tr id="l$linenr" class="$color_class">!.
-                             qq!<td class="sha1"><a href=""> </a></td>!.
-                             qq!<td class="linenr">!.
-                             qq!<a class="linenr" href="">$linenr</a></td>!;
-                       print qq!<td class="pre">! . esc_html($line) . "</td>\n";
-                       print qq!</tr>\n!;
-               }
-
-       } else { # porcelain, i.e. ordinary blame
-               my %metainfo = (); # saves information about commits
-
-               # blame data
-       LINE:
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       # the header: <SHA-1> <src lineno> <dst lineno> [<lines in group>]
-                       # no <lines in group> for subsequent lines in group of lines
-                       my ($full_rev, $orig_lineno, $lineno, $group_size) =
-                          ($line =~ /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/);
-                       if (!exists $metainfo{$full_rev}) {
-                               $metainfo{$full_rev} = { 'nprevious' => 0 };
-                       }
-                       my $meta = $metainfo{$full_rev};
-                       my $data;
-                       while ($data = <$fd>) {
-                               chomp $data;
-                               last if ($data =~ s/^\t//); # contents of line
-                               if ($data =~ /^(\S+)(?: (.*))?$/) {
-                                       $meta->{$1} = $2 unless exists $meta->{$1};
-                               }
-                               if ($data =~ /^previous /) {
-                                       $meta->{'nprevious'}++;
-                               }
-                       }
-                       my $short_rev = substr($full_rev, 0, 8);
-                       my $author = $meta->{'author'};
-                       my %date =
-                               parse_date($meta->{'author-time'}, $meta->{'author-tz'});
-                       my $date = $date{'iso-tz'};
-                       if ($group_size) {
-                               $current_color = ($current_color + 1) % $num_colors;
-                       }
-                       my $tr_class = $rev_color[$current_color];
-                       $tr_class .= ' boundary' if (exists $meta->{'boundary'});
-                       $tr_class .= ' no-previous' if ($meta->{'nprevious'} == 0);
-                       $tr_class .= ' multiple-previous' if ($meta->{'nprevious'} > 1);
-                       print "<tr id=\"l$lineno\" class=\"$tr_class\">\n";
-                       if ($group_size) {
-                               print "<td class=\"sha1\"";
-                               print " title=\"". esc_html($author) . ", $date\"";
-                               print " rowspan=\"$group_size\"" if ($group_size > 1);
-                               print ">";
-                               print $cgi->a({-href => href(action=>"commit",
-                                                            hash=>$full_rev,
-                                                            file_name=>$file_name)},
-                                             esc_html($short_rev));
-                               if ($group_size >= 2) {
-                                       my @author_initials = ($author =~ /\b([[:upper:]])\B/g);
-                                       if (@author_initials) {
-                                               print "<br />" .
-                                                     esc_html(join('', @author_initials));
-                                               #           or join('.', ...)
-                                       }
-                               }
-                               print "</td>\n";
-                       }
-                       # 'previous' <sha1 of parent commit> <filename at commit>
-                       if (exists $meta->{'previous'} &&
-                           $meta->{'previous'} =~ /^([a-fA-F0-9]{40}) (.*)$/) {
-                               $meta->{'parent'} = $1;
-                               $meta->{'file_parent'} = unquote($2);
-                       }
-                       my $linenr_commit =
-                               exists($meta->{'parent'}) ?
-                               $meta->{'parent'} : $full_rev;
-                       my $linenr_filename =
-                               exists($meta->{'file_parent'}) ?
-                               $meta->{'file_parent'} : unquote($meta->{'filename'});
-                       my $blamed = href(action => 'blame',
-                                         file_name => $linenr_filename,
-                                         hash_base => $linenr_commit);
-                       print "<td class=\"linenr\">";
-                       print $cgi->a({ -href => "$blamed#l$orig_lineno",
-                                       -class => "linenr" },
-                                     esc_html($lineno));
-                       print "</td>";
-                       print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
-                       print "</tr>\n";
-               } # end while
-
-       }
-
-       # footer
-       print "</tbody>\n".
-             "</table>\n"; # class="blame"
-       print "</div>\n";   # class="blame_body"
-       close $fd
-               or print "Reading blob failed\n";
-
-       git_footer_html();
-}
-
-sub git_blame {
-       git_blame_common();
-}
-
-sub git_blame_incremental {
-       git_blame_common('incremental');
-}
-
-sub git_blame_data {
-       git_blame_common('data');
-}
-
-sub git_tags {
-       my $head = git_get_head_hash($project);
-       git_header_html();
-       git_print_page_nav('','', $head,undef,$head,format_ref_views('tags'));
-       git_print_header_div('summary', $project);
-
-       my @tagslist = git_get_tags_list();
-       if (@tagslist) {
-               git_tags_body(\@tagslist);
-       }
-       git_footer_html();
-}
-
-sub git_heads {
-       my $head = git_get_head_hash($project);
-       git_header_html();
-       git_print_page_nav('','', $head,undef,$head,format_ref_views('heads'));
-       git_print_header_div('summary', $project);
-
-       my @headslist = git_get_heads_list();
-       if (@headslist) {
-               git_heads_body(\@headslist, $head);
-       }
-       git_footer_html();
-}
-
-# used both for single remote view and for list of all the remotes
-sub git_remotes {
-       gitweb_check_feature('remote_heads')
-               or die_error(403, "Remote heads view is disabled");
-
-       my $head = git_get_head_hash($project);
-       my $remote = $input_params{'hash'};
-
-       my $remotedata = git_get_remotes_list($remote);
-       die_error(500, "Unable to get remote information") unless defined $remotedata;
-
-       unless (%$remotedata) {
-               die_error(404, defined $remote ?
-                       "Remote $remote not found" :
-                       "No remotes found");
-       }
-
-       git_header_html(undef, undef, -action_extra => $remote);
-       git_print_page_nav('', '',  $head, undef, $head,
-               format_ref_views($remote ? '' : 'remotes'));
-
-       fill_remote_heads($remotedata);
-       if (defined $remote) {
-               git_print_header_div('remotes', "$remote remote for $project");
-               git_remote_block($remote, $remotedata->{$remote}, undef, $head);
-       } else {
-               git_print_header_div('summary', "$project remotes");
-               git_remotes_body($remotedata, undef, $head);
-       }
-
-       git_footer_html();
-}
-
-sub git_blob_plain {
-       my $type = shift;
-       my $expires;
-
-       if (!defined $hash) {
-               if (defined $file_name) {
-                       my $base = $hash_base || git_get_head_hash($project);
-                       $hash = git_get_hash_by_path($base, $file_name, "blob")
-                               or die_error(404, "Cannot find file");
-               } else {
-                       die_error(400, "No file name defined");
-               }
-       } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               # blobs defined by non-textual hash id's can be cached
-               $expires = "+1d";
-       }
-
-       open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
-               or die_error(500, "Open git-cat-file blob '$hash' failed");
-
-       # content-type (can include charset)
-       $type = blob_contenttype($fd, $file_name, $type);
-
-       # "save as" filename, even when no $file_name is given
-       my $save_as = "$hash";
-       if (defined $file_name) {
-               $save_as = $file_name;
-       } elsif ($type =~ m/^text\//) {
-               $save_as .= '.txt';
-       }
-
-       # With XSS prevention on, blobs of all types except a few known safe
-       # ones are served with "Content-Disposition: attachment" to make sure
-       # they don't run in our security domain.  For certain image types,
-       # blob view writes an <img> tag referring to blob_plain view, and we
-       # want to be sure not to break that by serving the image as an
-       # attachment (though Firefox 3 doesn't seem to care).
-       my $sandbox = $prevent_xss &&
-               $type !~ m!^(?:text/[a-z]+|image/(?:gif|png|jpeg))(?:[ ;]|$)!;
-
-       # serve text/* as text/plain
-       if ($prevent_xss &&
-           ($type =~ m!^text/[a-z]+\b(.*)$! ||
-            ($type =~ m!^[a-z]+/[a-z]\+xml\b(.*)$! && -T $fd))) {
-               my $rest = $1;
-               $rest = defined $rest ? $rest : '';
-               $type = "text/plain$rest";
-       }
-
-       print $cgi->header(
-               -type => $type,
-               -expires => $expires,
-               -content_disposition =>
-                       ($sandbox ? 'attachment' : 'inline')
-                       . '; filename="' . $save_as . '"');
-       local $/ = undef;
-       binmode STDOUT, ':raw';
-       print <$fd>;
-       binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
-       close $fd;
-}
-
-sub git_blob {
-       my $expires;
-
-       if (!defined $hash) {
-               if (defined $file_name) {
-                       my $base = $hash_base || git_get_head_hash($project);
-                       $hash = git_get_hash_by_path($base, $file_name, "blob")
-                               or die_error(404, "Cannot find file");
-               } else {
-                       die_error(400, "No file name defined");
-               }
-       } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               # blobs defined by non-textual hash id's can be cached
-               $expires = "+1d";
-       }
-
-       my $have_blame = gitweb_check_feature('blame');
-       open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
-               or die_error(500, "Couldn't cat $file_name, $hash");
-       my $mimetype = blob_mimetype($fd, $file_name);
-       # use 'blob_plain' (aka 'raw') view for files that cannot be displayed
-       if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)! && -B $fd) {
-               close $fd;
-               return git_blob_plain($mimetype);
-       }
-       # we can have blame only for text/* mimetype
-       $have_blame &&= ($mimetype =~ m!^text/!);
-
-       my $highlight = gitweb_check_feature('highlight');
-       my $syntax = guess_file_syntax($highlight, $mimetype, $file_name);
-       $fd = run_highlighter($fd, $highlight, $syntax);
-
-       git_header_html(undef, $expires);
-       my $formats_nav = '';
-       if (defined $hash_base && (my %co = parse_commit($hash_base))) {
-               if (defined $file_name) {
-                       if ($have_blame) {
-                               $formats_nav .=
-                                       $cgi->a({-href => href(action=>"blame", -replay=>1)},
-                                               "blame") .
-                                       " | ";
-                       }
-                       $formats_nav .=
-                               $cgi->a({-href => href(action=>"history", -replay=>1)},
-                                       "history") .
-                               " | " .
-                               $cgi->a({-href => href(action=>"blob_plain", -replay=>1)},
-                                       "raw") .
-                               " | " .
-                               $cgi->a({-href => href(action=>"blob",
-                                                      hash_base=>"HEAD", file_name=>$file_name)},
-                                       "HEAD");
-               } else {
-                       $formats_nav .=
-                               $cgi->a({-href => href(action=>"blob_plain", -replay=>1)},
-                                       "raw");
-               }
-               git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
-               git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
-       } else {
-               print "<div class=\"page_nav\">\n" .
-                     "<br/><br/></div>\n" .
-                     "<div class=\"title\">".esc_html($hash)."</div>\n";
-       }
-       git_print_page_path($file_name, "blob", $hash_base);
-       print "<div class=\"page_body\">\n";
-       if ($mimetype =~ m!^image/!) {
-               print qq!<img class="blob" type="!.esc_attr($mimetype).qq!"!;
-               if ($file_name) {
-                       print qq! alt="!.esc_attr($file_name).qq!" title="!.esc_attr($file_name).qq!"!;
-               }
-               print qq! src="! .
-                     href(action=>"blob_plain", hash=>$hash,
-                          hash_base=>$hash_base, file_name=>$file_name) .
-                     qq!" />\n!;
-       } else {
-               my $nr;
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       $nr++;
-                       $line = untabify($line);
-                       printf qq!<div class="pre"><a id="l%i" href="%s#l%i" class="linenr">%4i</a> %s</div>\n!,
-                              $nr, esc_attr(href(-replay => 1)), $nr, $nr,
-                               ($highlight) ? sanitize($line) : esc_html($line, -nbsp=>1);
-               }
-       }
-       close $fd
-               or print "Reading blob failed.\n";
-       print "</div>";
-       git_footer_html();
-}
-
-sub git_tree {
-       if (!defined $hash_base) {
-               $hash_base = "HEAD";
-       }
-       if (!defined $hash) {
-               if (defined $file_name) {
-                       $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
-               } else {
-                       $hash = $hash_base;
-               }
-       }
-       die_error(404, "No such tree") unless defined($hash);
-
-       my $show_sizes = gitweb_check_feature('show-sizes');
-       my $have_blame = gitweb_check_feature('blame');
-
-       my @entries = ();
-       {
-               local $/ = "\0";
-               open my $fd, "-|", git_cmd(), "ls-tree", '-z',
-                       ($show_sizes ? '-l' : ()), @extra_options, $hash
-                       or die_error(500, "Open git-ls-tree failed");
-               @entries = map { chomp; $_ } <$fd>;
-               close $fd
-                       or die_error(404, "Reading tree failed");
-       }
-
-       my $refs = git_get_references();
-       my $ref = format_ref_marker($refs, $hash_base);
-       git_header_html();
-       my $basedir = '';
-       if (defined $hash_base && (my %co = parse_commit($hash_base))) {
-               my @views_nav = ();
-               if (defined $file_name) {
-                       push @views_nav,
-                               $cgi->a({-href => href(action=>"history", -replay=>1)},
-                                       "history"),
-                               $cgi->a({-href => href(action=>"tree",
-                                                      hash_base=>"HEAD", file_name=>$file_name)},
-                                       "HEAD"),
-               }
-               my $snapshot_links = format_snapshot_links($hash);
-               if (defined $snapshot_links) {
-                       # FIXME: Should be available when we have no hash base as well.
-                       push @views_nav, $snapshot_links;
-               }
-               git_print_page_nav('tree','', $hash_base, undef, undef,
-                                  join(' | ', @views_nav));
-               git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
-       } else {
-               undef $hash_base;
-               print "<div class=\"page_nav\">\n";
-               print "<br/><br/></div>\n";
-               print "<div class=\"title\">".esc_html($hash)."</div>\n";
-       }
-       if (defined $file_name) {
-               $basedir = $file_name;
-               if ($basedir ne '' && substr($basedir, -1) ne '/') {
-                       $basedir .= '/';
-               }
-               git_print_page_path($file_name, 'tree', $hash_base);
-       }
-       print "<div class=\"page_body\">\n";
-       print "<table class=\"tree\">\n";
-       my $alternate = 1;
-       # '..' (top directory) link if possible
-       if (defined $hash_base &&
-           defined $file_name && $file_name =~ m![^/]+$!) {
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-
-               my $up = $file_name;
-               $up =~ s!/?[^/]+$!!;
-               undef $up unless $up;
-               # based on git_print_tree_entry
-               print '<td class="mode">' . mode_str('040000') . "</td>\n";
-               print '<td class="size">&nbsp;</td>'."\n" if $show_sizes;
-               print '<td class="list">';
-               print $cgi->a({-href => href(action=>"tree",
-                                            hash_base=>$hash_base,
-                                            file_name=>$up)},
-                             "..");
-               print "</td>\n";
-               print "<td class=\"link\"></td>\n";
-
-               print "</tr>\n";
-       }
-       foreach my $line (@entries) {
-               my %t = parse_ls_tree_line($line, -z => 1, -l => $show_sizes);
-
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-
-               git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
-
-               print "</tr>\n";
-       }
-       print "</table>\n" .
-             "</div>";
-       git_footer_html();
-}
-
-sub sanitize_for_filename {
-    my $name = shift;
-
-    $name =~ s!/!-!g;
-    $name =~ s/[^[:alnum:]_.-]//g;
-
-    return $name;
-}
-
-sub snapshot_name {
-       my ($project, $hash) = @_;
-
-       # path/to/project.git  -> project
-       # path/to/project/.git -> project
-       my $name = to_utf8($project);
-       $name =~ s,([^/])/*\.git$,$1,;
-       $name = sanitize_for_filename(basename($name));
-
-       my $ver = $hash;
-       if ($hash =~ /^[0-9a-fA-F]+$/) {
-               # shorten SHA-1 hash
-               my $full_hash = git_get_full_hash($project, $hash);
-               if ($full_hash =~ /^$hash/ && length($hash) > 7) {
-                       $ver = git_get_short_hash($project, $hash);
-               }
-       } elsif ($hash =~ m!^refs/tags/(.*)$!) {
-               # tags don't need shortened SHA-1 hash
-               $ver = $1;
-       } else {
-               # branches and other need shortened SHA-1 hash
-               my $strip_refs = join '|', map { quotemeta } get_branch_refs();
-               if ($hash =~ m!^refs/($strip_refs|remotes)/(.*)$!) {
-                       my $ref_dir = (defined $1) ? $1 : '';
-                       $ver = $2;
-
-                       $ref_dir = sanitize_for_filename($ref_dir);
-                       # for refs neither in heads nor remotes we want to
-                       # add a ref dir to archive name
-                       if ($ref_dir ne '' and $ref_dir ne 'heads' and $ref_dir ne 'remotes') {
-                               $ver = $ref_dir . '-' . $ver;
-                       }
-               }
-               $ver .= '-' . git_get_short_hash($project, $hash);
-       }
-       # special case of sanitization for filename - we change
-       # slashes to dots instead of dashes
-       # in case of hierarchical branch names
-       $ver =~ s!/!.!g;
-       $ver =~ s/[^[:alnum:]_.-]//g;
-
-       # name = project-version_string
-       $name = "$name-$ver";
-
-       return wantarray ? ($name, $name) : $name;
-}
-
-sub exit_if_unmodified_since {
-       my ($latest_epoch) = @_;
-       our $cgi;
-
-       my $if_modified = $cgi->http('IF_MODIFIED_SINCE');
-       if (defined $if_modified) {
-               my $since;
-               if (eval { require HTTP::Date; 1; }) {
-                       $since = HTTP::Date::str2time($if_modified);
-               } elsif (eval { require Time::ParseDate; 1; }) {
-                       $since = Time::ParseDate::parsedate($if_modified, GMT => 1);
-               }
-               if (defined $since && $latest_epoch <= $since) {
-                       my %latest_date = parse_date($latest_epoch);
-                       print $cgi->header(
-                               -last_modified => $latest_date{'rfc2822'},
-                               -status => '304 Not Modified');
-                       goto DONE_GITWEB;
-               }
-       }
-}
-
-sub git_snapshot {
-       my $format = $input_params{'snapshot_format'};
-       if (!@snapshot_fmts) {
-               die_error(403, "Snapshots not allowed");
-       }
-       # default to first supported snapshot format
-       $format ||= $snapshot_fmts[0];
-       if ($format !~ m/^[a-z0-9]+$/) {
-               die_error(400, "Invalid snapshot format parameter");
-       } elsif (!exists($known_snapshot_formats{$format})) {
-               die_error(400, "Unknown snapshot format");
-       } elsif ($known_snapshot_formats{$format}{'disabled'}) {
-               die_error(403, "Snapshot format not allowed");
-       } elsif (!grep($_ eq $format, @snapshot_fmts)) {
-               die_error(403, "Unsupported snapshot format");
-       }
-
-       my $type = git_get_type("$hash^{}");
-       if (!$type) {
-               die_error(404, 'Object does not exist');
-       }  elsif ($type eq 'blob') {
-               die_error(400, 'Object is not a tree-ish');
-       }
-
-       my ($name, $prefix) = snapshot_name($project, $hash);
-       my $filename = "$name$known_snapshot_formats{$format}{'suffix'}";
-
-       my %co = parse_commit($hash);
-       exit_if_unmodified_since($co{'committer_epoch'}) if %co;
-
-       my $cmd = quote_command(
-               git_cmd(), 'archive',
-               "--format=$known_snapshot_formats{$format}{'format'}",
-               "--prefix=$prefix/", $hash);
-       if (exists $known_snapshot_formats{$format}{'compressor'}) {
-               $cmd .= ' | ' . quote_command(@{$known_snapshot_formats{$format}{'compressor'}});
-       }
-
-       $filename =~ s/(["\\])/\\$1/g;
-       my %latest_date;
-       if (%co) {
-               %latest_date = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
-       }
-
-       print $cgi->header(
-               -type => $known_snapshot_formats{$format}{'type'},
-               -content_disposition => 'inline; filename="' . $filename . '"',
-               %co ? (-last_modified => $latest_date{'rfc2822'}) : (),
-               -status => '200 OK');
-
-       open my $fd, "-|", $cmd
-               or die_error(500, "Execute git-archive failed");
-       binmode STDOUT, ':raw';
-       print <$fd>;
-       binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
-       close $fd;
-}
-
-sub git_log_generic {
-       my ($fmt_name, $body_subr, $base, $parent, $file_name, $file_hash) = @_;
-
-       my $head = git_get_head_hash($project);
-       if (!defined $base) {
-               $base = $head;
-       }
-       if (!defined $page) {
-               $page = 0;
-       }
-       my $refs = git_get_references();
-
-       my $commit_hash = $base;
-       if (defined $parent) {
-               $commit_hash = "$parent..$base";
-       }
-       my @commitlist =
-               parse_commits($commit_hash, 101, (100 * $page),
-                             defined $file_name ? ($file_name, "--full-history") : ());
-
-       my $ftype;
-       if (!defined $file_hash && defined $file_name) {
-               # some commits could have deleted file in question,
-               # and not have it in tree, but one of them has to have it
-               for (my $i = 0; $i < @commitlist; $i++) {
-                       $file_hash = git_get_hash_by_path($commitlist[$i]{'id'}, $file_name);
-                       last if defined $file_hash;
-               }
-       }
-       if (defined $file_hash) {
-               $ftype = git_get_type($file_hash);
-       }
-       if (defined $file_name && !defined $ftype) {
-               die_error(500, "Unknown type of object");
-       }
-       my %co;
-       if (defined $file_name) {
-               %co = parse_commit($base)
-                       or die_error(404, "Unknown commit object");
-       }
-
-
-       my $paging_nav = format_paging_nav($fmt_name, $page, $#commitlist >= 100);
-       my $next_link = '';
-       if ($#commitlist >= 100) {
-               $next_link =
-                       $cgi->a({-href => href(-replay=>1, page=>$page+1),
-                                -accesskey => "n", -title => "Alt-n"}, "next");
-       }
-       my $patch_max = gitweb_get_feature('patches');
-       if ($patch_max && !defined $file_name) {
-               if ($patch_max < 0 || @commitlist <= $patch_max) {
-                       $paging_nav .= " &sdot; " .
-                               $cgi->a({-href => href(action=>"patches", -replay=>1)},
-                                       "patches");
-               }
-       }
-
-       git_header_html();
-       git_print_page_nav($fmt_name,'', $hash,$hash,$hash, $paging_nav);
-       if (defined $file_name) {
-               git_print_header_div('commit', esc_html($co{'title'}), $base);
-       } else {
-               git_print_header_div('summary', $project)
-       }
-       git_print_page_path($file_name, $ftype, $hash_base)
-               if (defined $file_name);
-
-       $body_subr->(\@commitlist, 0, 99, $refs, $next_link,
-                    $file_name, $file_hash, $ftype);
-
-       git_footer_html();
-}
-
-sub git_log {
-       git_log_generic('log', \&git_log_body,
-                       $hash, $hash_parent);
-}
-
-sub git_commit {
-       $hash ||= $hash_base || "HEAD";
-       my %co = parse_commit($hash)
-           or die_error(404, "Unknown commit object");
-
-       my $parent  = $co{'parent'};
-       my $parents = $co{'parents'}; # listref
-
-       # we need to prepare $formats_nav before any parameter munging
-       my $formats_nav;
-       if (!defined $parent) {
-               # --root commitdiff
-               $formats_nav .= '(initial)';
-       } elsif (@$parents == 1) {
-               # single parent commit
-               $formats_nav .=
-                       '(parent: ' .
-                       $cgi->a({-href => href(action=>"commit",
-                                              hash=>$parent)},
-                               esc_html(substr($parent, 0, 7))) .
-                       ')';
-       } else {
-               # merge commit
-               $formats_nav .=
-                       '(merge: ' .
-                       join(' ', map {
-                               $cgi->a({-href => href(action=>"commit",
-                                                      hash=>$_)},
-                                       esc_html(substr($_, 0, 7)));
-                       } @$parents ) .
-                       ')';
-       }
-       if (gitweb_check_feature('patches') && @$parents <= 1) {
-               $formats_nav .= " | " .
-                       $cgi->a({-href => href(action=>"patch", -replay=>1)},
-                               "patch");
-       }
-
-       if (!defined $parent) {
-               $parent = "--root";
-       }
-       my @difftree;
-       open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
-               @diff_opts,
-               (@$parents <= 1 ? $parent : '-c'),
-               $hash, "--"
-               or die_error(500, "Open git-diff-tree failed");
-       @difftree = map { chomp; $_ } <$fd>;
-       close $fd or die_error(404, "Reading git-diff-tree failed");
-
-       # non-textual hash id's can be cached
-       my $expires;
-       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               $expires = "+1d";
-       }
-       my $refs = git_get_references();
-       my $ref = format_ref_marker($refs, $co{'id'});
-
-       git_header_html(undef, $expires);
-       git_print_page_nav('commit', '',
-                          $hash, $co{'tree'}, $hash,
-                          $formats_nav);
-
-       if (defined $co{'parent'}) {
-               git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
-       } else {
-               git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
-       }
-       print "<div class=\"title_text\">\n" .
-             "<table class=\"object_header\">\n";
-       git_print_authorship_rows(\%co);
-       print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
-       print "<tr>" .
-             "<td>tree</td>" .
-             "<td class=\"sha1\">" .
-             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
-                      class => "list"}, $co{'tree'}) .
-             "</td>" .
-             "<td class=\"link\">" .
-             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
-                     "tree");
-       my $snapshot_links = format_snapshot_links($hash);
-       if (defined $snapshot_links) {
-               print " | " . $snapshot_links;
-       }
-       print "</td>" .
-             "</tr>\n";
-
-       foreach my $par (@$parents) {
-               print "<tr>" .
-                     "<td>parent</td>" .
-                     "<td class=\"sha1\">" .
-                     $cgi->a({-href => href(action=>"commit", hash=>$par),
-                              class => "list"}, $par) .
-                     "</td>" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
-                     " | " .
-                     $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
-                     "</td>" .
-                     "</tr>\n";
-       }
-       print "</table>".
-             "</div>\n";
-
-       print "<div class=\"page_body\">\n";
-       git_print_log($co{'comment'});
-       print "</div>\n";
-
-       git_difftree_body(\@difftree, $hash, @$parents);
-
-       git_footer_html();
-}
-
-sub git_object {
-       # object is defined by:
-       # - hash or hash_base alone
-       # - hash_base and file_name
-       my $type;
-
-       # - hash or hash_base alone
-       if ($hash || ($hash_base && !defined $file_name)) {
-               my $object_id = $hash || $hash_base;
-
-               open my $fd, "-|", quote_command(
-                       git_cmd(), 'cat-file', '-t', $object_id) . ' 2> /dev/null'
-                       or die_error(404, "Object does not exist");
-               $type = <$fd>;
-               defined $type && chomp $type;
-               close $fd
-                       or die_error(404, "Object does not exist");
-
-       # - hash_base and file_name
-       } elsif ($hash_base && defined $file_name) {
-               $file_name =~ s,/+$,,;
-
-               system(git_cmd(), "cat-file", '-e', $hash_base) == 0
-                       or die_error(404, "Base object does not exist");
-
-               # here errors should not happen
-               open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
-                       or die_error(500, "Open git-ls-tree failed");
-               my $line = <$fd>;
-               close $fd;
-
-               #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
-               unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
-                       die_error(404, "File or directory for given base does not exist");
-               }
-               $type = $2;
-               $hash = $3;
-       } else {
-               die_error(400, "Not enough information to find object");
-       }
-
-       print $cgi->redirect(-uri => href(action=>$type, -full=>1,
-                                         hash=>$hash, hash_base=>$hash_base,
-                                         file_name=>$file_name),
-                            -status => '302 Found');
-}
-
-sub git_blobdiff {
-       my $format = shift || 'html';
-       my $diff_style = $input_params{'diff_style'} || 'inline';
-
-       my $fd;
-       my @difftree;
-       my %diffinfo;
-       my $expires;
-
-       # preparing $fd and %diffinfo for git_patchset_body
-       # new style URI
-       if (defined $hash_base && defined $hash_parent_base) {
-               if (defined $file_name) {
-                       # read raw output
-                       open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                               $hash_parent_base, $hash_base,
-                               "--", (defined $file_parent ? $file_parent : ()), $file_name
-                               or die_error(500, "Open git-diff-tree failed");
-                       @difftree = map { chomp; $_ } <$fd>;
-                       close $fd
-                               or die_error(404, "Reading git-diff-tree failed");
-                       @difftree
-                               or die_error(404, "Blob diff not found");
-
-               } elsif (defined $hash &&
-                        $hash =~ /[0-9a-fA-F]{40}/) {
-                       # try to find filename from $hash
-
-                       # read filtered raw output
-                       open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                               $hash_parent_base, $hash_base, "--"
-                               or die_error(500, "Open git-diff-tree failed");
-                       @difftree =
-                               # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
-                               # $hash == to_id
-                               grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
-                               map { chomp; $_ } <$fd>;
-                       close $fd
-                               or die_error(404, "Reading git-diff-tree failed");
-                       @difftree
-                               or die_error(404, "Blob diff not found");
-
-               } else {
-                       die_error(400, "Missing one of the blob diff parameters");
-               }
-
-               if (@difftree > 1) {
-                       die_error(400, "Ambiguous blob diff specification");
-               }
-
-               %diffinfo = parse_difftree_raw_line($difftree[0]);
-               $file_parent ||= $diffinfo{'from_file'} || $file_name;
-               $file_name   ||= $diffinfo{'to_file'};
-
-               $hash_parent ||= $diffinfo{'from_id'};
-               $hash        ||= $diffinfo{'to_id'};
-
-               # non-textual hash id's can be cached
-               if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
-                   $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
-                       $expires = '+1d';
-               }
-
-               # open patch output
-               open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                       '-p', ($format eq 'html' ? "--full-index" : ()),
-                       $hash_parent_base, $hash_base,
-                       "--", (defined $file_parent ? $file_parent : ()), $file_name
-                       or die_error(500, "Open git-diff-tree failed");
-       }
-
-       # old/legacy style URI -- not generated anymore since 1.4.3.
-       if (!%diffinfo) {
-               die_error('404 Not Found', "Missing one of the blob diff parameters")
-       }
-
-       # header
-       if ($format eq 'html') {
-               my $formats_nav =
-                       $cgi->a({-href => href(action=>"blobdiff_plain", -replay=>1)},
-                               "raw");
-               $formats_nav .= diff_style_nav($diff_style);
-               git_header_html(undef, $expires);
-               if (defined $hash_base && (my %co = parse_commit($hash_base))) {
-                       git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
-                       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
-               } else {
-                       print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
-                       print "<div class=\"title\">".esc_html("$hash vs $hash_parent")."</div>\n";
-               }
-               if (defined $file_name) {
-                       git_print_page_path($file_name, "blob", $hash_base);
-               } else {
-                       print "<div class=\"page_path\"></div>\n";
-               }
-
-       } elsif ($format eq 'plain') {
-               print $cgi->header(
-                       -type => 'text/plain',
-                       -charset => 'utf-8',
-                       -expires => $expires,
-                       -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
-
-               print "X-Git-Url: " . $cgi->self_url() . "\n\n";
-
-       } else {
-               die_error(400, "Unknown blobdiff format");
-       }
-
-       # patch
-       if ($format eq 'html') {
-               print "<div class=\"page_body\">\n";
-
-               git_patchset_body($fd, $diff_style,
-                                 [ \%diffinfo ], $hash_base, $hash_parent_base);
-               close $fd;
-
-               print "</div>\n"; # class="page_body"
-               git_footer_html();
-
-       } else {
-               while (my $line = <$fd>) {
-                       $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
-                       $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
-
-                       print $line;
-
-                       last if $line =~ m!^\+\+\+!;
-               }
-               local $/ = undef;
-               print <$fd>;
-               close $fd;
-       }
-}
-
-sub git_blobdiff_plain {
-       git_blobdiff('plain');
-}
-
-# assumes that it is added as later part of already existing navigation,
-# so it returns "| foo | bar" rather than just "foo | bar"
-sub diff_style_nav {
-       my ($diff_style, $is_combined) = @_;
-       $diff_style ||= 'inline';
-
-       return "" if ($is_combined);
-
-       my @styles = (inline => 'inline', 'sidebyside' => 'side by side');
-       my %styles = @styles;
-       @styles =
-               @styles[ map { $_ * 2 } 0..$#styles/2 ];
-
-       return join '',
-               map { " | ".$_ }
-               map {
-                       $_ eq $diff_style ? $styles{$_} :
-                       $cgi->a({-href => href(-replay=>1, diff_style => $_)}, $styles{$_})
-               } @styles;
-}
-
-sub git_commitdiff {
-       my %params = @_;
-       my $format = $params{-format} || 'html';
-       my $diff_style = $input_params{'diff_style'} || 'inline';
-
-       my ($patch_max) = gitweb_get_feature('patches');
-       if ($format eq 'patch') {
-               die_error(403, "Patch view not allowed") unless $patch_max;
-       }
-
-       $hash ||= $hash_base || "HEAD";
-       my %co = parse_commit($hash)
-           or die_error(404, "Unknown commit object");
-
-       # choose format for commitdiff for merge
-       if (! defined $hash_parent && @{$co{'parents'}} > 1) {
-               $hash_parent = '--cc';
-       }
-       # we need to prepare $formats_nav before almost any parameter munging
-       my $formats_nav;
-       if ($format eq 'html') {
-               $formats_nav =
-                       $cgi->a({-href => href(action=>"commitdiff_plain", -replay=>1)},
-                               "raw");
-               if ($patch_max && @{$co{'parents'}} <= 1) {
-                       $formats_nav .= " | " .
-                               $cgi->a({-href => href(action=>"patch", -replay=>1)},
-                                       "patch");
-               }
-               $formats_nav .= diff_style_nav($diff_style, @{$co{'parents'}} > 1);
-
-               if (defined $hash_parent &&
-                   $hash_parent ne '-c' && $hash_parent ne '--cc') {
-                       # commitdiff with two commits given
-                       my $hash_parent_short = $hash_parent;
-                       if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
-                               $hash_parent_short = substr($hash_parent, 0, 7);
-                       }
-                       $formats_nav .=
-                               ' (from';
-                       for (my $i = 0; $i < @{$co{'parents'}}; $i++) {
-                               if ($co{'parents'}[$i] eq $hash_parent) {
-                                       $formats_nav .= ' parent ' . ($i+1);
-                                       last;
-                               }
-                       }
-                       $formats_nav .= ': ' .
-                               $cgi->a({-href => href(-replay=>1,
-                                                      hash=>$hash_parent, hash_base=>undef)},
-                                       esc_html($hash_parent_short)) .
-                               ')';
-               } elsif (!$co{'parent'}) {
-                       # --root commitdiff
-                       $formats_nav .= ' (initial)';
-               } elsif (scalar @{$co{'parents'}} == 1) {
-                       # single parent commit
-                       $formats_nav .=
-                               ' (parent: ' .
-                               $cgi->a({-href => href(-replay=>1,
-                                                      hash=>$co{'parent'}, hash_base=>undef)},
-                                       esc_html(substr($co{'parent'}, 0, 7))) .
-                               ')';
-               } else {
-                       # merge commit
-                       if ($hash_parent eq '--cc') {
-                               $formats_nav .= ' | ' .
-                                       $cgi->a({-href => href(-replay=>1,
-                                                              hash=>$hash, hash_parent=>'-c')},
-                                               'combined');
-                       } else { # $hash_parent eq '-c'
-                               $formats_nav .= ' | ' .
-                                       $cgi->a({-href => href(-replay=>1,
-                                                              hash=>$hash, hash_parent=>'--cc')},
-                                               'compact');
-                       }
-                       $formats_nav .=
-                               ' (merge: ' .
-                               join(' ', map {
-                                       $cgi->a({-href => href(-replay=>1,
-                                                              hash=>$_, hash_base=>undef)},
-                                               esc_html(substr($_, 0, 7)));
-                               } @{$co{'parents'}} ) .
-                               ')';
-               }
-       }
-
-       my $hash_parent_param = $hash_parent;
-       if (!defined $hash_parent_param) {
-               # --cc for multiple parents, --root for parentless
-               $hash_parent_param =
-                       @{$co{'parents'}} > 1 ? '--cc' : $co{'parent'} || '--root';
-       }
-
-       # read commitdiff
-       my $fd;
-       my @difftree;
-       if ($format eq 'html') {
-               open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                       "--no-commit-id", "--patch-with-raw", "--full-index",
-                       $hash_parent_param, $hash, "--"
-                       or die_error(500, "Open git-diff-tree failed");
-
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       # empty line ends raw part of diff-tree output
-                       last unless $line;
-                       push @difftree, scalar parse_difftree_raw_line($line);
-               }
-
-       } elsif ($format eq 'plain') {
-               open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                       '-p', $hash_parent_param, $hash, "--"
-                       or die_error(500, "Open git-diff-tree failed");
-       } elsif ($format eq 'patch') {
-               # For commit ranges, we limit the output to the number of
-               # patches specified in the 'patches' feature.
-               # For single commits, we limit the output to a single patch,
-               # diverging from the git-format-patch default.
-               my @commit_spec = ();
-               if ($hash_parent) {
-                       if ($patch_max > 0) {
-                               push @commit_spec, "-$patch_max";
-                       }
-                       push @commit_spec, '-n', "$hash_parent..$hash";
-               } else {
-                       if ($params{-single}) {
-                               push @commit_spec, '-1';
-                       } else {
-                               if ($patch_max > 0) {
-                                       push @commit_spec, "-$patch_max";
-                               }
-                               push @commit_spec, "-n";
-                       }
-                       push @commit_spec, '--root', $hash;
-               }
-               open $fd, "-|", git_cmd(), "format-patch", @diff_opts,
-                       '--encoding=utf8', '--stdout', @commit_spec
-                       or die_error(500, "Open git-format-patch failed");
-       } else {
-               die_error(400, "Unknown commitdiff format");
-       }
-
-       # non-textual hash id's can be cached
-       my $expires;
-       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               $expires = "+1d";
-       }
-
-       # write commit message
-       if ($format eq 'html') {
-               my $refs = git_get_references();
-               my $ref = format_ref_marker($refs, $co{'id'});
-
-               git_header_html(undef, $expires);
-               git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
-               git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
-               print "<div class=\"title_text\">\n" .
-                     "<table class=\"object_header\">\n";
-               git_print_authorship_rows(\%co);
-               print "</table>".
-                     "</div>\n";
-               print "<div class=\"page_body\">\n";
-               if (@{$co{'comment'}} > 1) {
-                       print "<div class=\"log\">\n";
-                       git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
-                       print "</div>\n"; # class="log"
-               }
-
-       } elsif ($format eq 'plain') {
-               my $refs = git_get_references("tags");
-               my $tagname = git_get_rev_name_tags($hash);
-               my $filename = basename($project) . "-$hash.patch";
-
-               print $cgi->header(
-                       -type => 'text/plain',
-                       -charset => 'utf-8',
-                       -expires => $expires,
-                       -content_disposition => 'inline; filename="' . "$filename" . '"');
-               my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
-               print "From: " . to_utf8($co{'author'}) . "\n";
-               print "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n";
-               print "Subject: " . to_utf8($co{'title'}) . "\n";
-
-               print "X-Git-Tag: $tagname\n" if $tagname;
-               print "X-Git-Url: " . $cgi->self_url() . "\n\n";
-
-               foreach my $line (@{$co{'comment'}}) {
-                       print to_utf8($line) . "\n";
-               }
-               print "---\n\n";
-       } elsif ($format eq 'patch') {
-               my $filename = basename($project) . "-$hash.patch";
-
-               print $cgi->header(
-                       -type => 'text/plain',
-                       -charset => 'utf-8',
-                       -expires => $expires,
-                       -content_disposition => 'inline; filename="' . "$filename" . '"');
-       }
-
-       # write patch
-       if ($format eq 'html') {
-               my $use_parents = !defined $hash_parent ||
-                       $hash_parent eq '-c' || $hash_parent eq '--cc';
-               git_difftree_body(\@difftree, $hash,
-                                 $use_parents ? @{$co{'parents'}} : $hash_parent);
-               print "<br/>\n";
-
-               git_patchset_body($fd, $diff_style,
-                                 \@difftree, $hash,
-                                 $use_parents ? @{$co{'parents'}} : $hash_parent);
-               close $fd;
-               print "</div>\n"; # class="page_body"
-               git_footer_html();
-
-       } elsif ($format eq 'plain') {
-               local $/ = undef;
-               print <$fd>;
-               close $fd
-                       or print "Reading git-diff-tree failed\n";
-       } elsif ($format eq 'patch') {
-               local $/ = undef;
-               print <$fd>;
-               close $fd
-                       or print "Reading git-format-patch failed\n";
-       }
-}
-
-sub git_commitdiff_plain {
-       git_commitdiff(-format => 'plain');
-}
-
-# format-patch-style patches
-sub git_patch {
-       git_commitdiff(-format => 'patch', -single => 1);
-}
-
-sub git_patches {
-       git_commitdiff(-format => 'patch');
-}
-
-sub git_history {
-       git_log_generic('history', \&git_history_body,
-                       $hash_base, $hash_parent_base,
-                       $file_name, $hash);
-}
-
-sub git_search {
-       $searchtype ||= 'commit';
-
-       # check if appropriate features are enabled
-       gitweb_check_feature('search')
-               or die_error(403, "Search is disabled");
-       if ($searchtype eq 'pickaxe') {
-               # pickaxe may take all resources of your box and run for several minutes
-               # with every query - so decide by yourself how public you make this feature
-               gitweb_check_feature('pickaxe')
-                       or die_error(403, "Pickaxe search is disabled");
-       }
-       if ($searchtype eq 'grep') {
-               # grep search might be potentially CPU-intensive, too
-               gitweb_check_feature('grep')
-                       or die_error(403, "Grep search is disabled");
-       }
-
-       if (!defined $searchtext) {
-               die_error(400, "Text field is empty");
-       }
-       if (!defined $hash) {
-               $hash = git_get_head_hash($project);
-       }
-       my %co = parse_commit($hash);
-       if (!%co) {
-               die_error(404, "Unknown commit object");
-       }
-       if (!defined $page) {
-               $page = 0;
-       }
-
-       if ($searchtype eq 'commit' ||
-           $searchtype eq 'author' ||
-           $searchtype eq 'committer') {
-               git_search_message(%co);
-       } elsif ($searchtype eq 'pickaxe') {
-               git_search_changes(%co);
-       } elsif ($searchtype eq 'grep') {
-               git_search_files(%co);
-       } else {
-               die_error(400, "Unknown search type");
-       }
-}
-
-sub git_search_help {
-       git_header_html();
-       git_print_page_nav('','', $hash,$hash,$hash);
-       print <<EOT;
-<p><strong>Pattern</strong> is by default a normal string that is matched precisely (but without
-regard to case, except in the case of pickaxe). However, when you check the <em>re</em> checkbox,
-the pattern entered is recognized as the POSIX extended
-<a href="http://en.wikipedia.org/wiki/Regular_expression">regular expression</a> (also case
-insensitive).</p>
-<dl>
-<dt><b>commit</b></dt>
-<dd>The commit messages and authorship information will be scanned for the given pattern.</dd>
-EOT
-       my $have_grep = gitweb_check_feature('grep');
-       if ($have_grep) {
-               print <<EOT;
-<dt><b>grep</b></dt>
-<dd>All files in the currently selected tree (HEAD unless you are explicitly browsing
-    a different one) are searched for the given pattern. On large trees, this search can take
-a while and put some strain on the server, so please use it with some consideration. Note that
-due to git-grep peculiarity, currently if regexp mode is turned off, the matches are
-case-sensitive.</dd>
-EOT
-       }
-       print <<EOT;
-<dt><b>author</b></dt>
-<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given pattern.</dd>
-<dt><b>committer</b></dt>
-<dd>Name and e-mail of the committer and date of commit will be scanned for the given pattern.</dd>
-EOT
-       my $have_pickaxe = gitweb_check_feature('pickaxe');
-       if ($have_pickaxe) {
-               print <<EOT;
-<dt><b>pickaxe</b></dt>
-<dd>All commits that caused the string to appear or disappear from any file (changes that
-added, removed or "modified" the string) will be listed. This search can take a while and
-takes a lot of strain on the server, so please use it wisely. Note that since you may be
-interested even in changes just changing the case as well, this search is case sensitive.</dd>
-EOT
-       }
-       print "</dl>\n";
-       git_footer_html();
-}
-
-sub git_shortlog {
-       git_log_generic('shortlog', \&git_shortlog_body,
-                       $hash, $hash_parent);
-}
-
-## ......................................................................
-## feeds (RSS, Atom; OPML)
-
-sub git_feed {
-       my $format = shift || 'atom';
-       my $have_blame = gitweb_check_feature('blame');
-
-       # Atom: http://www.atomenabled.org/developers/syndication/
-       # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
-       if ($format ne 'rss' && $format ne 'atom') {
-               die_error(400, "Unknown web feed format");
-       }
-
-       # log/feed of current (HEAD) branch, log of given branch, history of file/directory
-       my $head = $hash || 'HEAD';
-       my @commitlist = parse_commits($head, 150, 0, $file_name);
-
-       my %latest_commit;
-       my %latest_date;
-       my $content_type = "application/$format+xml";
-       if (defined $cgi->http('HTTP_ACCEPT') &&
-                $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
-               # browser (feed reader) prefers text/xml
-               $content_type = 'text/xml';
-       }
-       if (defined($commitlist[0])) {
-               %latest_commit = %{$commitlist[0]};
-               my $latest_epoch = $latest_commit{'committer_epoch'};
-               exit_if_unmodified_since($latest_epoch);
-               %latest_date = parse_date($latest_epoch, $latest_commit{'committer_tz'});
-       }
-       print $cgi->header(
-               -type => $content_type,
-               -charset => 'utf-8',
-               %latest_date ? (-last_modified => $latest_date{'rfc2822'}) : (),
-               -status => '200 OK');
-
-       # Optimization: skip generating the body if client asks only
-       # for Last-Modified date.
-       return if ($cgi->request_method() eq 'HEAD');
-
-       # header variables
-       my $title = "$site_name - $project/$action";
-       my $feed_type = 'log';
-       if (defined $hash) {
-               $title .= " - '$hash'";
-               $feed_type = 'branch log';
-               if (defined $file_name) {
-                       $title .= " :: $file_name";
-                       $feed_type = 'history';
-               }
-       } elsif (defined $file_name) {
-               $title .= " - $file_name";
-               $feed_type = 'history';
-       }
-       $title .= " $feed_type";
-       $title = esc_html($title);
-       my $descr = git_get_project_description($project);
-       if (defined $descr) {
-               $descr = esc_html($descr);
-       } else {
-               $descr = "$project " .
-                        ($format eq 'rss' ? 'RSS' : 'Atom') .
-                        " feed";
-       }
-       my $owner = git_get_project_owner($project);
-       $owner = esc_html($owner);
-
-       #header
-       my $alt_url;
-       if (defined $file_name) {
-               $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
-       } elsif (defined $hash) {
-               $alt_url = href(-full=>1, action=>"log", hash=>$hash);
-       } else {
-               $alt_url = href(-full=>1, action=>"summary");
-       }
-       print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
-       if ($format eq 'rss') {
-               print <<XML;
-<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
-<channel>
-XML
-               print "<title>$title</title>\n" .
-                     "<link>$alt_url</link>\n" .
-                     "<description>$descr</description>\n" .
-                     "<language>en</language>\n" .
-                     # project owner is responsible for 'editorial' content
-                     "<managingEditor>$owner</managingEditor>\n";
-               if (defined $logo || defined $favicon) {
-                       # prefer the logo to the favicon, since RSS
-                       # doesn't allow both
-                       my $img = esc_url($logo || $favicon);
-                       print "<image>\n" .
-                             "<url>$img</url>\n" .
-                             "<title>$title</title>\n" .
-                             "<link>$alt_url</link>\n" .
-                             "</image>\n";
-               }
-               if (%latest_date) {
-                       print "<pubDate>$latest_date{'rfc2822'}</pubDate>\n";
-                       print "<lastBuildDate>$latest_date{'rfc2822'}</lastBuildDate>\n";
-               }
-               print "<generator>gitweb v.$version/$git_version</generator>\n";
-       } elsif ($format eq 'atom') {
-               print <<XML;
-<feed xmlns="http://www.w3.org/2005/Atom">
-XML
-               print "<title>$title</title>\n" .
-                     "<subtitle>$descr</subtitle>\n" .
-                     '<link rel="alternate" type="text/html" href="' .
-                     $alt_url . '" />' . "\n" .
-                     '<link rel="self" type="' . $content_type . '" href="' .
-                     $cgi->self_url() . '" />' . "\n" .
-                     "<id>" . href(-full=>1) . "</id>\n" .
-                     # use project owner for feed author
-                     "<author><name>$owner</name></author>\n";
-               if (defined $favicon) {
-                       print "<icon>" . esc_url($favicon) . "</icon>\n";
-               }
-               if (defined $logo) {
-                       # not twice as wide as tall: 72 x 27 pixels
-                       print "<logo>" . esc_url($logo) . "</logo>\n";
-               }
-               if (! %latest_date) {
-                       # dummy date to keep the feed valid until commits trickle in:
-                       print "<updated>1970-01-01T00:00:00Z</updated>\n";
-               } else {
-                       print "<updated>$latest_date{'iso-8601'}</updated>\n";
-               }
-               print "<generator version='$version/$git_version'>gitweb</generator>\n";
-       }
-
-       # contents
-       for (my $i = 0; $i <= $#commitlist; $i++) {
-               my %co = %{$commitlist[$i]};
-               my $commit = $co{'id'};
-               # we read 150, we always show 30 and the ones more recent than 48 hours
-               if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
-                       last;
-               }
-               my %cd = parse_date($co{'author_epoch'}, $co{'author_tz'});
-
-               # get list of changed files
-               open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                       $co{'parent'} || "--root",
-                       $co{'id'}, "--", (defined $file_name ? $file_name : ())
-                       or next;
-               my @difftree = map { chomp; $_ } <$fd>;
-               close $fd
-                       or next;
-
-               # print element (entry, item)
-               my $co_url = href(-full=>1, action=>"commitdiff", hash=>$commit);
-               if ($format eq 'rss') {
-                       print "<item>\n" .
-                             "<title>" . esc_html($co{'title'}) . "</title>\n" .
-                             "<author>" . esc_html($co{'author'}) . "</author>\n" .
-                             "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
-                             "<guid isPermaLink=\"true\">$co_url</guid>\n" .
-                             "<link>$co_url</link>\n" .
-                             "<description>" . esc_html($co{'title'}) . "</description>\n" .
-                             "<content:encoded>" .
-                             "<![CDATA[\n";
-               } elsif ($format eq 'atom') {
-                       print "<entry>\n" .
-                             "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
-                             "<updated>$cd{'iso-8601'}</updated>\n" .
-                             "<author>\n" .
-                             "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
-                       if ($co{'author_email'}) {
-                               print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
-                       }
-                       print "</author>\n" .
-                             # use committer for contributor
-                             "<contributor>\n" .
-                             "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
-                       if ($co{'committer_email'}) {
-                               print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
-                       }
-                       print "</contributor>\n" .
-                             "<published>$cd{'iso-8601'}</published>\n" .
-                             "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
-                             "<id>$co_url</id>\n" .
-                             "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
-                             "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
-               }
-               my $comment = $co{'comment'};
-               print "<pre>\n";
-               foreach my $line (@$comment) {
-                       $line = esc_html($line);
-                       print "$line\n";
-               }
-               print "</pre><ul>\n";
-               foreach my $difftree_line (@difftree) {
-                       my %difftree = parse_difftree_raw_line($difftree_line);
-                       next if !$difftree{'from_id'};
-
-                       my $file = $difftree{'file'} || $difftree{'to_file'};
-
-                       print "<li>" .
-                             "[" .
-                             $cgi->a({-href => href(-full=>1, action=>"blobdiff",
-                                                    hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
-                                                    hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
-                                                    file_name=>$file, file_parent=>$difftree{'from_file'}),
-                                     -title => "diff"}, 'D');
-                       if ($have_blame) {
-                               print $cgi->a({-href => href(-full=>1, action=>"blame",
-                                                            file_name=>$file, hash_base=>$commit),
-                                             -title => "blame"}, 'B');
-                       }
-                       # if this is not a feed of a file history
-                       if (!defined $file_name || $file_name ne $file) {
-                               print $cgi->a({-href => href(-full=>1, action=>"history",
-                                                            file_name=>$file, hash=>$commit),
-                                             -title => "history"}, 'H');
-                       }
-                       $file = esc_path($file);
-                       print "] ".
-                             "$file</li>\n";
-               }
-               if ($format eq 'rss') {
-                       print "</ul>]]>\n" .
-                             "</content:encoded>\n" .
-                             "</item>\n";
-               } elsif ($format eq 'atom') {
-                       print "</ul>\n</div>\n" .
-                             "</content>\n" .
-                             "</entry>\n";
-               }
-       }
-
-       # end of feed
-       if ($format eq 'rss') {
-               print "</channel>\n</rss>\n";
-       } elsif ($format eq 'atom') {
-               print "</feed>\n";
-       }
-}
-
-sub git_rss {
-       git_feed('rss');
-}
-
-sub git_atom {
-       git_feed('atom');
-}
-
-sub git_opml {
-       my @list = git_get_projects_list($project_filter, $strict_export);
-       if (!@list) {
-               die_error(404, "No projects found");
-       }
-
-       print $cgi->header(
-               -type => 'text/xml',
-               -charset => 'utf-8',
-               -content_disposition => 'inline; filename="opml.xml"');
-
-       my $title = esc_html($site_name);
-       my $filter = " within subdirectory ";
-       if (defined $project_filter) {
-               $filter .= esc_html($project_filter);
-       } else {
-               $filter = "";
-       }
-       print <<XML;
-<?xml version="1.0" encoding="utf-8"?>
-<opml version="1.0">
-<head>
-  <title>$title OPML Export$filter</title>
-</head>
-<body>
-<outline text="git RSS feeds">
-XML
-
-       foreach my $pr (@list) {
-               my %proj = %$pr;
-               my $head = git_get_head_hash($proj{'path'});
-               if (!defined $head) {
-                       next;
-               }
-               $git_dir = "$projectroot/$proj{'path'}";
-               my %co = parse_commit($head);
-               if (!%co) {
-                       next;
-               }
-
-               my $path = esc_html(chop_str($proj{'path'}, 25, 5));
-               my $rss  = href('project' => $proj{'path'}, 'action' => 'rss', -full => 1);
-               my $html = href('project' => $proj{'path'}, 'action' => 'summary', -full => 1);
-               print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
-       }
-       print <<XML;
-</outline>
-</body>
-</opml>
-XML
-}
index b88d931debbc28fc313b1f7192c94d41dcbdba5a..c069f12745f581e1ae7289d18965ca059e22e6c6 100755 (executable)
@@ -7,8 +7,15 @@ shopt -s inherit_errexit 2>/dev/null ||: # ignore fail in bash < 4.4
 set -eE -o pipefail
 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?. PIPESTATUS: ${PIPESTATUS[*]}" >&2' ERR
 
-idle_limit=$((1000 * 60 * 45))
-idle_time=$(sudo -u '#1000' xprintidle 2>/dev/null) ||:
-if [[ $idle_time && $idle_limit -lt $idle_time ]]; then
+locked=false
+if lock_info=$(xscreensaver-command -timer); then
+  if [[ $lock_info != *non-blanked* ]]; then
+    locked=true
+  fi
+else
+  locked=true
+fi
+
+if ! $locked; then
   btrbk run
 fi
diff --git a/machine_specific/kd/filesystem/etc/systemd/system/btrbk-spread.service b/machine_specific/kd/filesystem/etc/systemd/system/btrbk-spread.service
new file mode 100644 (file)
index 0000000..85e8d52
--- /dev/null
@@ -0,0 +1,10 @@
+[Unit]
+Description=Btrbk spread backup
+After=multi-user.target
+
+[Service]
+Type=oneshot
+ExecStartPre=/a/exe/install-my-scripts
+ExecStart=/usr/local/bin/sysd-mail-once -t daylerts@iankelling.org btrbk /usr/local/bin/btrbk-run --cron -k
+ExecStartPost=/bin/sleep 1
+ExecStartPost=/a/exe/install-my-scripts
diff --git a/machine_specific/kd/filesystem/etc/systemd/system/btrbk-spread.timer b/machine_specific/kd/filesystem/etc/systemd/system/btrbk-spread.timer
new file mode 100644 (file)
index 0000000..875d6ce
--- /dev/null
@@ -0,0 +1,8 @@
+[Unit]
+Description=Run btrbk-run hourly
+
+[Timer]
+OnCalendar=*-*-* *:45:00
+
+[Install]
+WantedBy=timers.target
index 30c987f457ec1bfb895071300276f2614420b0cf..cfe5575d2090ebfcc120f39575c0aa40e5d8060c 100755 (executable)
@@ -3,6 +3,13 @@
 # Copyright (C) 2019 Ian Kelling
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
+# Things I tend to forget. on MAIL_HOST, daemon runs with /etc/exim4/my.conf,
+# which gets generated from update-exim4.conf -d /etc/myexim4
+# which has log path
+# log_file_path = /var/log/exim4/my%s
+#
+# so, normal mainlog is non-daemon, which delivers to the daemon.
+
 
 # shellcheck disable=SC2254 # makes for a lot of unneeded quotes
 
index 7d5567d8d16bda261d5672140e7d3e87980dba03..9d9049ef93a30bd59a9d64bae545dcbb7e49b9f2 100755 (executable)
@@ -68,7 +68,7 @@ write-status() {
         dynamicipupdate
       )
       bads=()
-      if systemctl show -p SubState --value ${services[@]} | egrep -v '^(running|)$' &>/dev/null; then
+      if systemctl show -p SubState --value ${services[@]} | grep -E -v '^(running|)$' &>/dev/null; then
         for s in ${services[@]}; do
           if [[ $(systemctl show -p SubState --value $s 2>&1) != running ]]; then
             bads+=($s)
@@ -88,7 +88,7 @@ write-status() {
         prometheus
       )
       bads=()
-      if systemctl show -p SubState --value ${services[@]} | egrep -v '^(running|)$' &>/dev/null; then
+      if systemctl show -p SubState --value ${services[@]} | grep -E -v '^(running|)$' &>/dev/null; then
         for s in ${services[@]}; do
           if [[ $(systemctl show -p SubState --value $s 2>&1) != running ]]; then
             bads+=($s)
@@ -228,7 +228,7 @@ write-status() {
     # this is for tracking dns over tls issue, which
     # fixvpndns() in brc2 fixes.
     stat=$(resolvectl dnsovertls tunfsf 2>/dev/null ||: )
-    read _ _ _ istls <<<"$stat"
+    read -r _ _ _ istls <<<"$stat"
     case $istls in
       no) : ;;
       *)
@@ -382,10 +382,40 @@ write-status() {
     fi
   fi
 }
+
+# This prevents me having to mute notifications when I'm going to bed.
+mute() {
+  local locked
+  export DISPLAY=:0
+  locked=false
+  if lock_info=$(xscreensaver-command -timer); then
+    if [[ $lock_info != *non-blanked* ]]; then
+      locked=true
+    fi
+  else
+    locked=true
+  fi
+  midnight=$(date -d 00:00 +%s)
+  mdiff=$(( EPOCHSECONDS - midnight ))
+  if $locked && (( mdiff < 6 || mdiff > 21 )); then
+    case $(pactl get-sink-mute @DEFAULT_SINK@ | awk '{print $2}') in
+      no)
+        pactl set-sink-mute @DEFAULT_SINK@ true
+        ;;
+    esac
+  fi
+  if ! $locked && ((  mdiff > 6 || mdiff < 12  )) && [[ ! -e /tmp/ianknap ]]; then
+    case $(pactl get-sink-mute @DEFAULT_SINK@ | awk '{print $2}') in
+      yes)
+        pactl set-sink-mute @DEFAULT_SINK@ false
+        ;;
+    esac
+  fi
+}
+
 # use this if we want to do something just once per minute
 first_chars=()
 
-
 write-status
 if [[ $1 ]]; then
   cat $status_file
@@ -408,6 +438,7 @@ main-loop() {
 
     sleep $wait
     write-status
+    mute
   done
 }