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 if [[ $1 == -f ]]; then
  28   lnf() { ln -sf "$@"; }
  29 fi
  30
  31 shopt -s nullglob
  32 shopt -s extglob
  33 shopt -s dotglob
  34
  35 # If we make a link back to the root, we stop going deeper into subdir_files.
  36 # This makes it so we can do subdir directories.
  37 #
  38 # Also note, under filesystem/, symlinks are expanded.
  39
  40 subdir-link-r() {
  41   local root="$1"
  42   local targets=()
  43   if [[ $2 ]]; then
  44     targets=( "$2"/!(.git|..|.) )
  45   else
  46     for f in "$1"/!(.git|..|.); do
  47       if [[ -d $f ]]; then targets+=("$f"); fi
  48     done
  49   fi
  50   local below
  51   below="$( readlink -f "$root/..")"
  52   for path in "${targets[@]}"; do
  53     local fullpath
  54     fullpath="$(readlink -f "$path")"
  55     #e $fullpath $below # debug
  56     if [[ -f $path || $(dirname $(readlink -f "$fullpath")) == "$below" ]]; then
  57       m lnf -T "$path" "$HOME/${path#$root/}"
  58     elif [[ -d "$path" ]]; then
  59       subdir-link-r "$root" "$path"
  60     fi
  61   done
  62 }
  63
  64
  65
  66 common-file-setup() {
  67   local dir fs x f
  68   for dir in "$@"; do
  69     fs=$dir/filesystem
  70     if [[ -e $fs && $user =~ ^iank?$ ]]; then
  71       # note, symlinks get resolved, not copied.
  72       s tar --mode=g-s --owner=0 --group=0 -cz -C $fs . | s tar -xz -C /
  73     fi
  74
  75     if [[ -e $dir/subdir_files ]]; then
  76       m subdir-link-r $dir/subdir_files
  77     fi
  78     local x=( $dir/!(binds|subdir_files|filesystem|machine_specific|..|.) )
  79     (( ${#x[@]} >= 1 )) || continue
  80     m lnf ${x[@]} ~
  81   done
  82 }
  83
  84 user=$(id -un)
  85 all_dirs=({/a/bin/ds,/p/c}{,/machine_specific/$HOSTNAME})
  86 # note, we assume a group of hosts does not have the
  87 # same name as a single host, which is no problem on our scale.
  88 for x in /p/c/machine_specific/*.hosts /a/bin/ds/machine_specific/*.hosts; do
  89   if grep -qxF $HOSTNAME $x; then all_dirs+=( ${x%.hosts} ); fi
  90 done
  91
  92 c_dirs=(/a/c{,/machine_specific/$HOSTNAME})
  93 case $user in
  94   iank)
  95     files=(/p/c/machine_specific/*/filesystem/etc/ssh/*_key
  96            /p/c/filesystem/etc/openvpn/client/*.key
  97            /p/c/filesystem/etc/openvpn/easy-rsa/keys/*.key
  98            /p/c/machine_specific/kw/filesystem/etc/openvpn/client/*.key
  99           )
 100     if [[ -e ${files[0]} ]]; then
 101       chmod 600 ${files[@]}
 102     fi
 103     # p needs to go first so .ssh link is created, then config link inside it
 104     m common-file-setup ${all_dirs[@]}
 105
 106     #### begin special extra stuff ####
 107     install -d -m700 ~/gpg-agent-socket
 108
 109     f=/var/lib/bind
 110     if [[ -e $f ]]; then
 111       # reset to the original permissions.
 112       m s chgrp -R bind $f
 113       m s chmod g+w $f
 114     fi
 115     sudo bash -c 'shopt -s nullglob; for f in /etc/bind/*.key /etc/bind/*.private /etc/bind/key.*; do chgrp bind $f; done'
 116     if [[ -e /etc/davpass ]] && getent group www-data &>/dev/null; then
 117       s chgrp www-data /etc/davpass
 118     fi
 119     if [[ -e /var/lib/znc ]] && getent group znc; then
 120       s chown -R znc:znc /var/lib/znc
 121     fi
 122     /a/exe/lnf -T /p/arbtt-capture.log ~/.arbtt/capture.log
 123     f=/etc/prometheus-htpasswd
 124     if [[ -e $f ]]; then
 125       s chmod 640 $f /etc/prometheus-pass
 126       s chown root:www-data $f
 127       if getent passwd prometheus; then
 128         s chown root:prometheus /etc/prometheus-pass
 129       fi
 130     fi
 131
 132     ##### end special extra stuff #####
 133
 134     if [[ -e /etc/openvpn ]]; then
 135       sudo bash -c 'shopt -s nullglob && cd /etc/openvpn && for f in client/* server/*; do ln -sf $f .; done'
 136     fi
 137
 138     m sudo -H -u user2 "${BASH_SOURCE[0]}"
 139     ;;
 140   user2)
 141     m common-file-setup ${c_dirs[@]}
 142     ;;
 143   *)
 144     echo "$0: error: unexpected user"; exit 1
 145     ;;
 146 esac
 147
 148 echo 0 >~/.local/conflink