git-store-dirs

   1 #!/bin/sh
   2
   3 #==============================================================================
   4 # git-store-dirs
   5 # File ID: 8853c3a0-6be6-11df-8fcb-90e6ba3022ac
   6 #
   7 # Store a list of all directories to $dirfile to be able to restore empty
   8 # directories. The list is \0-separated in case there are some directory names
   9 # containing (ugh) \n. Use git-restore-dirs(1) to recreate directories.
  10 #
  11 # Author: Øyvind A. Holm <sunny@sunbase.org>
  12 # License: GNU General Public License version 2 or later.
  13 #==============================================================================
  14
  15 progname=git-store-dirs
  16 VERSION=0.3.0
  17
  18 opt_help=0
  19 opt_local=0
  20 opt_quiet=0
  21 opt_verbose=0
  22 while test -n "$1"; do
  23         case "$1" in
  24         -h|--help) opt_help=1; shift ;;
  25         -l|--local) opt_local=1; shift ;;
  26         -q|--quiet) opt_quiet=$(($opt_quiet + 1)); shift ;;
  27         -v|--verbose) opt_verbose=$(($opt_verbose + 1)); shift ;;
  28         --version) echo $progname $VERSION; exit 0 ;;
  29         --) shift; break ;;
  30         *)
  31                 if printf '%s\n' "$1" | grep -q ^-; then
  32                         echo "$progname: $1: Unknown option" >&2
  33                         exit 1
  34                 else
  35                         break
  36                 fi
  37         break ;;
  38         esac
  39 done
  40 opt_verbose=$(($opt_verbose - $opt_quiet))
  41
  42 dirfile=.emptydirs
  43
  44 if test "$opt_help" = "1"; then
  45         test $opt_verbose -gt 0 && { echo; echo $progname $VERSION; }
  46         cat <<END
  47
  48 Store a list of all directories to $dirfile to be able to restore empty
  49 directories. The list is \\0-separated in case there are some directory
  50 names containing (ugh) \\n. Use git-restore-dirs(1) to recreate
  51 directories.
  52
  53 Usage: $progname [options]
  54
  55 Options:
  56
  57   -h, --help
  58     Show this help.
  59   -l, --local
  60     Create $dirfile in the current subdirectory.
  61   -q, --quiet
  62     Be more quiet. Can be repeated to increase silence.
  63   -v, --verbose
  64     Increase level of verbosity. Can be repeated.
  65   --version
  66     Print version information.
  67
  68 END
  69         exit 0
  70 fi
  71
  72 if test "$opt_local" != "1"; then
  73         test -d .git/. || {
  74                 echo -n "$progname: Has to be run from the toplevel " >&2
  75                 echo of the working tree >&2
  76                 exit 1
  77         }
  78 fi
  79 find . -type d -empty -print0 |
  80     grep -E -v -z '/\.git(/|$)' |
  81     LC_ALL=C sort -z >$dirfile
  82 test "$(cat $dirfile)" = "" &&
  83         (
  84                 git reset $dirfile
  85                 rm $dirfile
  86                 echo "$0: No empty directories found, deleting $dirfile" >&2
  87         ) || git add $dirfile
  88
  89 # vim: set ts=8 sw=8 sts=8 noet fo+=w tw=79 fenc=UTF-8 :