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

   1 #!/bin/bash
   2
   3 source /a/bin/errhandle/err
   4 err-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
  28 fast=false
  29 if [[ $1 == -f ]]; then # f for fast
  30   fast=true
  31   shift
  32 elif
  33   [[ $1 ]]; then
  34   echo "error: unrecognized arguments" >&2
  35   exit 0
  36 fi
  37
  38 if $fast; then
  39   lnf() { ln -sf "$@"; }
  40 fi
  41
  42 shopt -s nullglob
  43 shopt -s extglob
  44 shopt -s dotglob
  45
  46 # If we make a link back to the root, we stop going deeper into subdir_files.
  47 # This makes it so we can do subdir directories. eg
  48 # /p/c/subdir_files/.config/gajim -> ../../gagim
  49 #
  50 # Also note, under filesystem/, symlinks are expanded.
  51
  52 subdir-link-r() {
  53   local root="$1"
  54   local targets=()
  55   if [[ $2 ]]; then
  56     targets=( "$2"/!(.git|..|.|.#*) )
  57   else
  58     for f in "$1"/!(.git|..|.|.#*); do
  59       if [[ -d $f ]]; then targets+=("$f"); fi
  60     done
  61   fi
  62   local below
  63   below="$( readlink -f "$root/..")"
  64   for path in "${targets[@]}"; do
  65     local fullpath
  66     fullpath="$(readlink -f "$path")"
  67     if [[ -f $path || $(dirname "$fullpath") == "$below" ]]; then
  68       m lnf -T "$path" "$HOME/${path#$root/}"
  69     elif [[ -d "$path" ]]; then
  70       subdir-link-r "$root" "$path"
  71     fi
  72   done
  73 }
  74
  75
  76 common-file-setup() {
  77   local dir fs x f reload_systemd
  78   local -a reload_services
  79   local -a restart_services
  80   reload_systemd=false
  81   for dir in "$@"; do
  82     fs=$dir/filesystem
  83     if [[ -e $fs && $user =~ ^iank?$ ]]; then
  84       cmd=( s rsync -aiSAX --chown=root:root --chmod=g-s
  85             --exclude=/etc/dovecot/users
  86             --exclude='/etc/exim4/passwd*'
  87             --exclude='/etc/exim4/*.pem'
  88             $fs/ / )
  89       echo "${cmd[@]@Q}"
  90       while read -r line; do
  91         file="${line:12}"
  92         case $file in
  93           etc/systemd/system/*)
  94             reload_systemd=true
  95             ;;
  96           etc/dnsmasq.d/*)
  97             restart_services+=(dnsmasq)
  98             ;;
  99           etc/systemd/resolved.conf.d/*)
 100             restart_services+=(systemd-resolved)
 101             ;;
 102         esac
 103         # Previously did this with tar, but it doesn't
 104         # update directory permissions.
 105         #
 106         # S = do spare files efficiently
 107         # A = preserve acls
 108         # X = preserve extended attributes
 109         # i = itemize
 110       done < <("${cmd[@]}")
 111     fi
 112
 113     if [[ -e $dir/subdir_files ]]; then
 114       m subdir-link-r $dir/subdir_files
 115     fi
 116     local x=( $dir/!(binds|subdir_files|filesystem|machine_specific|..|.|.#*) )
 117     (( ${#x[@]} >= 1 )) || continue
 118     m lnf ${x[@]} ~
 119   done
 120   if $reload_systemd; then
 121     m s systemctl daemon-reload
 122   fi
 123   for service in ${restart_services[@]}; do
 124     if systemctl is-active $service >/dev/null; then
 125       m s systemctl restart $service
 126     fi
 127   done
 128 }
 129
 130 user=$(id -un)
 131 all_dirs=({/a/bin/ds,/p/c}{,/machine_specific/$HOSTNAME})
 132 # note, we assume a group of hosts does not have the
 133 # same name as a single host, which is no problem on our scale.
 134 for x in /p/c/machine_specific/*.hosts /a/bin/ds/machine_specific/*.hosts; do
 135   if grep -qxF $HOSTNAME $x; then all_dirs+=( ${x%.hosts} ); fi
 136 done
 137
 138 c_dirs=(/a/c{,/machine_specific/$HOSTNAME})
 139 case $user in
 140   iank)
 141     /a/bin/ds/install-my-scripts
 142     files=(/p/c/machine_specific/*/filesystem/etc/ssh/*_key
 143            /p/c/machine_specific/*/filesystem/etc/openvpn/client/*.key
 144            /p/c/filesystem/etc/openvpn/client/*.key
 145            /p/c/filesystem/etc/openvpn/easy-rsa/keys/*.key
 146           )
 147     if [[ -e ${files[0]} ]]; then
 148       chmod 600 ${files[@]}
 149     fi
 150     # p needs to go first so .ssh link is created, then config link inside it
 151     m common-file-setup ${all_dirs[@]}
 152
 153     #### begin special extra stuff ####
 154     install -d -m700 ~/gpg-agent-socket
 155
 156     f=/var/lib/bind
 157     if [[ -e $f ]]; then
 158       # reset to the original permissions.
 159       m s chgrp -R bind $f
 160       m s chmod g+w $f
 161     fi
 162     sudo bash -c 'shopt -s nullglob; for f in /etc/bind/*.key /etc/bind/*.private /etc/bind/key.*; do chgrp bind $f; done'
 163     if [[ -e /etc/caldav-htpasswd ]] && getent group www-data &>/dev/null; then
 164       s chgrp www-data /etc/caldav-htpasswd
 165     fi
 166     if [[ -e /var/lib/znc ]] && getent group znc; then
 167       s chown -R znc:znc /var/lib/znc
 168     fi
 169     for f in /etc/prometheus-{,export-}htpasswd; do
 170       if [[ -e $f ]]; then
 171         s chmod 640 $f
 172         if getent passwd www-data; then
 173           s chown root:www-data $f
 174         fi
 175       fi
 176     done
 177     f=/etc/prometheus-pass
 178     if [[ -e $f ]]; then
 179       # note: this is duplicative of the file's own permissions
 180       s chmod 640 $f /etc/prometheus-pass
 181       if getent passwd prometheus; then
 182         s chown root:prometheus $f
 183       fi
 184     fi
 185
 186
 187     ##### end special extra stuff #####
 188
 189     m sudo -H -u user2 "${BASH_SOURCE[0]}"
 190
 191     f=/a/bin/distro-setup/system-status
 192     if [[ -x $f ]]; then
 193       $f _
 194     fi
 195     mkdir -p ~/.local
 196     echo 0 >~/.local/conflink
 197
 198     ;;
 199   user2)
 200     m common-file-setup ${c_dirs[@]}
 201     ;;
 202   *)
 203     echo "$0: error: unexpected user"; exit 1
 204     ;;
 205 esac