git.ozlabs.org Git - petitboot/blob - version.sh

   1 #! /bin/bash
   2 #
   3 # version.sh: create a version string for use by configure.ac
   4
   5 version=
   6 datefmt='%Y%m%d'
   7
   8 export GIT_DIR=$(basename $0)/.git/
   9
  10 if head=$(git rev-parse --short=8 --verify HEAD 2>/dev/null); then
  11
  12         suffix=''
  13         # Add a '-dirty' suffix for uncommitted changes.
  14         if git diff-index HEAD | read dummy; then
  15                 suffix=-dirty
  16         fi
  17
  18         if tag=$(git describe --tags --exact-match 2>/dev/null); then
  19                 # use a tag; remove any 'v' prefix from v<VERSION> tags
  20                 tag=${tag#v}
  21                 version=$(printf "%s%s" ${tag} ${suffix})
  22         else
  23                 # Use the git commit revision for the package version, and add
  24                 # a date prefix for easy comparisons.
  25                 date=$(git log --pretty=format:"%ct" -1 HEAD)
  26                 version=$(printf "%($datefmt)T-g%s%s" ${date} ${head} ${suffix})
  27         fi
  28 else
  29         # Default to current date and time.
  30         version="$(date +dev-$datefmt)"
  31 fi
  32
  33 echo $version