get-version

   1 #!/bin/sh
   2 #
   3 # get-version
   4 #
   5 # Copyright © 2009 Guillem Jover <guillem@hadrons.org>
   6 #
   7 # Redistribution and use in source and binary forms, with or without
   8 # modification, are permitted provided that the following conditions
   9 # are met:
  10 # 1. Redistributions of source code must retain the above copyright
  11 #    notice, this list of conditions and the following disclaimer.
  12 # 2. Redistributions in binary form must reproduce the above copyright
  13 #    notice, this list of conditions and the following disclaimer in the
  14 #    documentation and/or other materials provided with the distribution.
  15 # 3. The name of the author may not be used to endorse or promote products
  16 #    derived from this software without specific prior written permission.
  17 #
  18 # THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  19 # INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  20 # AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
  21 # THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22 # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23 # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  24 # OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  25 # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  27 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28
  29 if [ -f .dist-version ]; then
  30   # Get the version from the file distributed in the tarball.
  31   version=$(cat .dist-version)
  32 elif [ -e .git ]; then
  33   # Ger the version from the git repository.
  34   version=$(git describe --tags --always --match [0-9]* 2> /dev/null)
  35
  36   # Check if we are on a dirty checkout.
  37   git update-index --refresh -q >/dev/null
  38   dirty=$(git diff-index --name-only --ignore-submodules=untracked HEAD 2>/dev/null)
  39   if [ -n "$dirty" ]; then
  40     version="$version-dirty"
  41   fi
  42 else
  43   version=$(date +%F)
  44 fi
  45
  46 # Use printf to avoid the trailing new line that m4_esyscmd would not handle.
  47 printf "$version"