Andrew's git - gitweb.git/blob - git-gui/GIT-VERSION-GEN

   1#!/bin/sh
   2
   3GVF=GIT-VERSION-FILE
   4DEF_VER=0.6.GITGUI
   5
   6LF='
   7'
   8
   9tree_search ()
  10{
  11        head=$1
  12        tree=$2
  13        for p in $(git rev-list --parents --max-count=1 $head 2>/dev/null)
  14        do
  15                test $tree = $(git rev-parse $p^{tree} 2>/dev/null) &&
  16                vn=$(git describe --abbrev=4 $p 2>/dev/null) &&
  17                case "$vn" in
  18                gitgui-[0-9]*) echo $vn; break;;
  19                esac
  20        done
  21}
  22
  23# We may be a subproject, so try looking for the merge
  24# commit that supplied this directory content if we are
  25# not at the toplevel.  We probably will always be the
  26# second parent in the commit, but we shouldn't rely on
  27# that fact.
  28#
  29# If we are at the toplevel or the merge assumption fails
  30# try looking for a gitgui-* tag, or fallback onto the
  31# distributed version file.
  32
  33if prefix="$(git rev-parse --show-prefix 2>/dev/null)"
  34   test -n "$prefix" &&
  35   head=$(git rev-list --max-count=1 HEAD -- . 2>/dev/null) &&
  36   tree=$(git rev-parse --verify "HEAD:$prefix" 2>/dev/null) &&
  37   VN=$(tree_search $head $tree)
  38   case "$VN" in
  39   gitgui-[0-9]*) : happy ;;
  40   *) (exit 1) ;;
  41   esac
  42then
  43        VN=$(echo "$VN" | sed -e 's/^gitgui-//;s/-/./g');
  44elif VN=$(git describe --abbrev=4 HEAD 2>/dev/null) &&
  45   case "$VN" in
  46   gitgui-[0-9]*) : happy ;;
  47   *) (exit 1) ;;
  48   esac
  49then
  50        VN=$(echo "$VN" | sed -e 's/^gitgui-//;s/-/./g');
  51elif test -f version
  52then
  53        VN=$(cat version) || VN="$DEF_VER"
  54else
  55        VN="$DEF_VER"
  56fi
  57
  58dirty=$(sh -c 'git diff-index --name-only HEAD' 2>/dev/null) || dirty=
  59case "$dirty" in
  60'')
  61        ;;
  62*)
  63        VN="$VN-dirty" ;;
  64esac
  65
  66if test -r $GVF
  67then
  68        VC=$(sed -e 's/^GITGUI_VERSION = //' <$GVF)
  69else
  70        VC=unset
  71fi
  72test "$VN" = "$VC" || {
  73        echo >&2 "GITGUI_VERSION = $VN"
  74        echo "GITGUI_VERSION = $VN" >$GVF
  75}
  76
  77