get-version

   1 #!/bin/sh
   2 #
   3 # get-version
   4 #
   5 # Copyright © 2009 Guillem Jover <guillem@debian.org>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19 #
  20
  21 if [ -f .dist-version ]; then
  22   # Get the version from the file distributed in the tarball.
  23   version=$(cat .dist-version)
  24 elif [ -d .git ]; then
  25   # Get the version from the git repository. Since tags can't contain
  26   # tildes, we use underscore instead. Reverse that switch here.
  27   version=$(git describe --abbrev=4 HEAD 2>/dev/null | sed -e 's/_/~/g')
  28
  29   # Check if we are on a dirty checkout.
  30   git update-index --refresh -q >/dev/null
  31   dirty=$(git diff-index --name-only HEAD 2>/dev/null)
  32   if [ -n "$dirty" ]; then
  33     version="$version-dirty"
  34   fi
  35 else
  36   echo "error: cannot get project version." 1>&2
  37   exit 1
  38 fi
  39
  40 # Use printf to avoid the trailing new line that m4_esyscmd would not handle.
  41 printf "$version"