iankelling.org Git - distro-setup/blob - conflink

   1 #!/bin/bash
   2
   3 source /a/bin/errhandle/err
   4 _errcatch_cleanup() {
   5   echo 1 >~/.local/conflink
   6 }
   7
   8
   9 usage() {
  10   cat <<EOF
  11 Usage: ${0##*/} [OPTIONS]
  12 Link or otherwise install configuration files.
  13
  14 -f   For fast. Dont use lnf, use ln -sf. Good for updating existing files.
  15 EOF
  16   exit $1
  17 }
  18
  19
  20 m() {
  21   echo "$*"
  22   "$@"
  23 }
  24 s() { sudo "$@"; }
  25
  26 lnf() { /a/exe/lnf "$@"; }
  27 now=$(date +%s)
  28 f=~/.local/conflink
  29 fast=false
  30 if [[ -e $f ]] && (( $(stat -c %Y $f) > $now - 60*60*24 )); then
  31   fast=true
  32 fi
  33 if [[ $1 == -f ]]; then # f for fast
  34   fast=true
  35   shift
  36 elif
  37   [[ $1 ]]; then
  38   echo "error: unrecognized arguments" >&2
  39   exit 0
  40 fi
  41
  42 if $fast; then
  43   lnf() { ln -sf "$@"; }
  44 fi
  45
  46 shopt -s nullglob
  47 shopt -s extglob
  48 shopt -s dotglob
  49
  50 # If we make a link back to the root, we stop going deeper into subdir_files.
  51 # This makes it so we can do subdir directories.
  52 #
  53 # Also note, under filesystem/, symlinks are expanded.
  54
  55 subdir-link-r() {
  56   local root="$1"
  57   local targets=()
  58   if [[ $2 ]]; then
  59     targets=( "$2"/!(.git|..|.) )
  60   else
  61     for f in "$1"/!(.git|..|.); do
  62       if [[ -d $f ]]; then targets+=("$f"); fi
  63     done
  64   fi
  65   local below
  66   below="$( readlink -f "$root/..")"
  67   for path in "${targets[@]}"; do
  68     local fullpath
  69     fullpath="$(readlink -f "$path")"
  70     #e $fullpath $below # debug
  71     if [[ -f $path || $(dirname $(readlink -f "$fullpath")) == "$below" ]]; then
  72       m lnf -T "$path" "$HOME/${path#$root/}"
  73     elif [[ -d "$path" ]]; then
  74       subdir-link-r "$root" "$path"
  75     fi
  76   done
  77 }
  78
  79
  80 common-file-setup() {
  81   local dir fs x f systemd_reload
  82   systemd_reload=false
  83   for dir in "$@"; do
  84     fs=$dir/filesystem
  85     if [[ -e $fs && $user =~ ^iank?$ ]]; then
  86       # this could be done with rsync, something like this,
  87       # but I haven't looked at the symlinks.
  88       # s rsync -n -ahviSAXPH --specials --devices --chown=root:root --chmod=g-s $fs /
  89       # note, symlinks get resolved, not copied.
  90       if s tar --mode=g-s --owner=0 --group=0 -cz -C $fs . | s tar -dz -C / | grep /etc/systemd &>/dev/null; then
  91         systemd_reload=true
  92       fi
  93       s tar --mode=g-s --owner=0 --group=0 -cz -C $fs . | s tar -xz -C /
  94     fi
  95
  96     if [[ -e $dir/subdir_files ]]; then
  97       m subdir-link-r $dir/subdir_files
  98     fi
  99     local x=( $dir/!(binds|subdir_files|filesystem|machine_specific|..|.) )
 100     (( ${#x[@]} >= 1 )) || continue
 101     m lnf ${x[@]} ~
 102   done
 103   if $systemd_reload; then
 104     m s systemctl daemon-reload
 105   fi
 106 }
 107
 108 user=$(id -un)
 109 all_dirs=({/a/bin/ds,/p/c}{,/machine_specific/$HOSTNAME})
 110 # note, we assume a group of hosts does not have the
 111 # same name as a single host, which is no problem on our scale.
 112 for x in /p/c/machine_specific/*.hosts /a/bin/ds/machine_specific/*.hosts; do
 113   if grep -qxF $HOSTNAME $x; then all_dirs+=( ${x%.hosts} ); fi
 114 done
 115
 116 c_dirs=(/a/c{,/machine_specific/$HOSTNAME})
 117 case $user in
 118   iank)
 119     files=(/p/c/machine_specific/*/filesystem/etc/ssh/*_key
 120            /p/c/filesystem/etc/openvpn/client/*.key
 121            /p/c/filesystem/etc/openvpn/easy-rsa/keys/*.key
 122            /p/c/machine_specific/kw/filesystem/etc/openvpn/client/*.key
 123           )
 124     if [[ -e ${files[0]} ]]; then
 125       chmod 600 ${files[@]}
 126     fi
 127     # p needs to go first so .ssh link is created, then config link inside it
 128     m common-file-setup ${all_dirs[@]}
 129
 130     #### begin special extra stuff ####
 131     install -d -m700 ~/gpg-agent-socket
 132
 133     f=/var/lib/bind
 134     if [[ -e $f ]]; then
 135       # reset to the original permissions.
 136       m s chgrp -R bind $f
 137       m s chmod g+w $f
 138     fi
 139     sudo bash -c 'shopt -s nullglob; for f in /etc/bind/*.key /etc/bind/*.private /etc/bind/key.*; do chgrp bind $f; done'
 140     if [[ -e /etc/davpass ]] && getent group www-data &>/dev/null; then
 141       s chgrp www-data /etc/davpass
 142     fi
 143     if [[ -e /var/lib/znc ]] && getent group znc; then
 144       s chown -R znc:znc /var/lib/znc
 145     fi
 146     /a/exe/lnf -T /p/arbtt-capture.log ~/.arbtt/capture.log
 147     f=/etc/prometheus-htpasswd
 148     if [[ -e $f ]]; then
 149       s chmod 640 $f /etc/prometheus-pass
 150       s chown root:www-data $f
 151       if getent passwd prometheus; then
 152         s chown root:prometheus /etc/prometheus-pass
 153       fi
 154     fi
 155
 156     ##### end special extra stuff #####
 157
 158     if [[ -e /etc/openvpn ]]; then
 159       sudo bash -c 'shopt -s nullglob && cd /etc/openvpn && for f in client/* server/*; do ln -sf $f .; done'
 160     fi
 161
 162     m sudo -H -u user2 "${BASH_SOURCE[0]}"
 163
 164     f=/a/bin/distro-setup/system-status
 165     if [[ -x $f ]]; then
 166       $f _
 167     fi
 168     echo 0 >~/.local/conflink
 169
 170     ;;
 171   user2)
 172     m common-file-setup ${c_dirs[@]}
 173     ;;
 174   *)
 175     echo "$0: error: unexpected user"; exit 1
 176     ;;
 177 esac