git-restore-dirs

   1 #!/bin/sh
   2
   3 #==============================================================================
   4 # git-restore-dirs
   5 # File ID: 14434f48-6be7-11df-904a-90e6ba3022ac
   6 #
   7 # Restore empty directories created by git-store-dirs(1)
   8 #
   9 # Author: Øyvind A. Holm <sunny@sunbase.org>
  10 # License: GNU General Public License version 2 or later.
  11 #==============================================================================
  12
  13 progname=git-restore-dirs
  14 VERSION=0.3.0
  15
  16 opt_help=0
  17 opt_quiet=0
  18 opt_verbose=0
  19 while test -n "$1"; do
  20         case "$1" in
  21         -h|--help) opt_help=1; shift ;;
  22         -q|--quiet) opt_quiet=$(($opt_quiet + 1)); shift ;;
  23         -v|--verbose) opt_verbose=$(($opt_verbose + 1)); shift ;;
  24         --version) echo $progname $VERSION; exit 0 ;;
  25         --) shift; break ;;
  26         *)
  27                 if printf '%s\n' "$1" | grep -q ^-; then
  28                         echo "$progname: $1: Unknown option" >&2
  29                         exit 1
  30                 else
  31                         break
  32                 fi
  33         break ;;
  34         esac
  35 done
  36 opt_verbose=$(($opt_verbose - $opt_quiet))
  37
  38 if test "$opt_help" = "1"; then
  39         test $opt_verbose -gt 0 && { echo; echo $progname $VERSION; }
  40         cat <<END
  41
  42 Restore empty directories created by git-store-dirs(1).
  43
  44 Usage: $progname [options]
  45
  46 Options:
  47
  48   -h, --help
  49     Show this help.
  50   -q, --quiet
  51     Be more quiet. Can be repeated to increase silence.
  52   -v, --verbose
  53     Increase level of verbosity. Can be repeated.
  54   --version
  55     Print version information.
  56
  57 END
  58         exit 0
  59 fi
  60
  61 tmppref=$(date -u +"%Y%m%dT%H%M%SZ").$$
  62 bef_file=/tmp/grd.$tmppref.before.tmp
  63 aft_file=/tmp/grd.$tmppref.after.tmp
  64 dirfile=.emptydirs
  65 test -e $dirfile || { echo $0: No $dirfile file found >&2; exit 1; }
  66 emptydirs >$bef_file
  67 xargs -0 mkdir -p <$dirfile
  68 emptydirs >$aft_file
  69 diff -u $bef_file $aft_file | grep '^+\./' | cut -c 2-
  70 rm $bef_file $aft_file
  71
  72 # vim: set ts=8 sw=8 sts=8 noet fo+=w tw=79 fenc=UTF-8 :