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