GIT-VERSION-GEN

   1 #!/bin/sh
   2
   3 GVF=GIT-VERSION-FILE
   4 DEF_VER=v1.4.GIT
   5
   6 # First try git-describe, then see if there is a version file
   7 # (included in release tarballs), then default
   8 if VN=$(git describe --abbrev=4 HEAD 2>/dev/null); then
   9         VN=$(echo "$VN" | sed -e 's/-/./g');
  10 elif test -f version
  11 then
  12         VN=$(cat version) || VN="$DEF_VER"
  13 else
  14         VN="$DEF_VER"
  15 fi
  16
  17 VN=$(expr "$VN" : v*'\(.*\)')
  18
  19 dirty=$(sh -c 'git diff-index --name-only HEAD' 2>/dev/null) || dirty=
  20 case "$dirty" in
  21 '')
  22         ;;
  23 *)
  24         VN="$VN-dirty" ;;
  25 esac
  26
  27 if test -r $GVF
  28 then
  29         VC=$(sed -e 's/^GIT_VERSION = //' <$GVF)
  30 else
  31         VC=unset
  32 fi
  33 test "$VN" = "$VC" || {
  34         echo >&2 "GIT_VERSION = $VN"
  35         echo "GIT_VERSION = $VN" >$GVF
  36 }
  37
  38