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