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

   1 #!/bin/bash -l
   2
   3 set -eE -o pipefail
   4 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?"' ERR
   5
   6
   7 sysv() {
   8     echo "$@"
   9     "$@"
  10 }
  11
  12
  13 #
  14
  15
  16 shopt -s nullglob
  17 shopt -s extglob # note, already set with bash -l
  18
  19 # if we make a link back to the root, traversing the subdirs stops.
  20 # This makes it so we can do subdir directories. Must call with absolute
  21 # paths.
  22
  23 subdir-link-r() {
  24     local root="$1"
  25     local targets=()
  26     if [[ $2 ]]; then
  27         targets=( "$2"/!(.git|..|.) )
  28     else
  29         for f in "$1"/!(.git|..|.); do
  30             [[ -d $f ]] && targets+=("$f") ||:
  31         done
  32     fi
  33     local below="$( readlink -f "$root/..")"
  34     for path in "${targets[@]}"; do
  35         local fullpath="$(readlink -f "$path")"
  36         #e $fullpath $below # debug
  37         if [[ -f $path || $(dirname $(readlink -f "$fullpath")) == "$below" ]]; then
  38             sysv lnf -T "$path" "$HOME/${path#$root/}"
  39         elif [[ -d "$path" ]]; then
  40             subdir-link-r "$root" "$path"
  41         fi
  42     done
  43 }
  44
  45 common-file-setup() {
  46     local dir fs_files x
  47     for dir in "$@"; do
  48         fs_files=( $dir/filesystem/* )
  49         if [[ -e ${fs_files[0]} && $USER == ian ]]; then
  50             # note, symlinks get resolved, not copied.
  51             sysv s cp -RL ${fs_files[@]} /
  52         fi
  53         if [[ -e $dir/subdir_files ]]; then
  54             subdir-link-r $dir/subdir_files
  55         fi
  56         local x=( $dir/!(subdir_files|filesystem|machine_specific) )
  57         (( ${#x[@]} >= 1 )) || continue
  58         sysv lnf ${x[@]} ~
  59     done
  60 }
  61
  62 all_dirs=({/a/c,/p/c}{,/machine_specific/$HOSTNAME})
  63 c_dirs=(/a/c{,/machine_specific/$HOSTNAME})
  64 case $USER in
  65     ian)
  66         # p needs to go first so .ssh link is created, then config link inside it
  67         common-file-setup ${all_dirs[@]}
  68         sudo -u traci "$BASH_SOURCE"
  69         ;;
  70     traci)
  71         common-file-setup ${c_dirs[@]}
  72         ;;
  73     *)
  74         echo "$0: error: unexpected user"; exit 1
  75         ;;
  76 esac