diff options
Diffstat (limited to 'git-gui/GIT-VERSION-GEN')
-rwxr-xr-x | git-gui/GIT-VERSION-GEN | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/git-gui/GIT-VERSION-GEN b/git-gui/GIT-VERSION-GEN new file mode 100755 index 0000000000..9966126da2 --- /dev/null +++ b/git-gui/GIT-VERSION-GEN @@ -0,0 +1,77 @@ +#!/bin/sh + +GVF=GIT-VERSION-FILE +DEF_VER=0.6.GITGUI + +LF=' +' + +tree_search () +{ + head=$1 + tree=$2 + for p in $(git rev-list --parents --max-count=1 $head 2>/dev/null) + do + test $tree = $(git rev-parse $p^{tree} 2>/dev/null) && + vn=$(git describe --abbrev=4 $p 2>/dev/null) && + case "$vn" in + gitgui-[0-9]*) echo $vn; break;; + esac + done +} + +# We may be a subproject, so try looking for the merge +# commit that supplied this directory content if we are +# not at the toplevel. We probably will always be the +# second parent in the commit, but we shouldn't rely on +# that fact. +# +# If we are at the toplevel or the merge assumption fails +# try looking for a gitgui-* tag, or fallback onto the +# distributed version file. + +if prefix="$(git rev-parse --show-prefix 2>/dev/null)" + test -n "$prefix" && + head=$(git rev-list --max-count=1 HEAD -- . 2>/dev/null) && + tree=$(git rev-parse --verify "HEAD:$prefix" 2>/dev/null) && + VN=$(tree_search $head $tree) + case "$VN" in + gitgui-[0-9]*) : happy ;; + *) (exit 1) ;; + esac +then + VN=$(echo "$VN" | sed -e 's/^gitgui-//;s/-/./g'); +elif VN=$(git describe --abbrev=4 HEAD 2>/dev/null) && + case "$VN" in + gitgui-[0-9]*) : happy ;; + *) (exit 1) ;; + esac +then + VN=$(echo "$VN" | sed -e 's/^gitgui-//;s/-/./g'); +elif test -f version +then + VN=$(cat version) || VN="$DEF_VER" +else + VN="$DEF_VER" +fi + +dirty=$(sh -c 'git diff-index --name-only HEAD' 2>/dev/null) || dirty= +case "$dirty" in +'') + ;; +*) + VN="$VN-dirty" ;; +esac + +if test -r $GVF +then + VC=$(sed -e 's/^GITGUI_VERSION = //' <$GVF) +else + VC=unset +fi +test "$VN" = "$VC" || { + echo >&2 "GITGUI_VERSION = $VN" + echo "GITGUI_VERSION = $VN" >$GVF +} + + |