#!/bin/sh
GVF=GIT-VERSION-FILE
-DEF_VER=0.19.GITGUI
+DEF_VER=v1.9.0
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 $vn; break;;
- esac
- done
-}
-
-# Always use the tarball version file if found, just
-# in case we are somehow contained in a larger git
-# repository that doesn't actually track our state.
-# (At least one package manager is doing this.)
-#
-# We may be a subproject, so try looking for the merge
-# commit that supplied this directory content if we are
-# not at the toplevel. We probably will always be the
-# second parent in the commit, but we shouldn't rely on
-# that fact.
-#
-# If we are at the toplevel or the merge assumption fails
-# try looking for a gitgui-* tag.
-
-if test -f version &&
- VN=$(cat version)
+# First see if there is a version file (included in release tarballs),
+# then try git-describe, then default.
+if test -f version
then
- : happy
-elif 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
+ VN=$(cat version) || VN="$DEF_VER"
+elif test -d ${GIT_DIR:-.git} -o -f .git &&
+ VN=$(git describe --match "v[0-9]*" --abbrev=7 HEAD 2>/dev/null) &&
+ case "$VN" in
+ *$LF*) (exit 1) ;;
+ v[0-9]*)
+ git update-index -q --refresh
+ test -z "$(git diff-index --name-only HEAD --)" ||
+ VN="$VN-dirty" ;;
+ 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');
+ VN=$(echo "$VN" | sed -e 's/-/./g');
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
+VN=$(expr "$VN" : v*'\(.*\)')
if test -r $GVF
then
- VC=$(sed -e 's/^GITGUI_VERSION = //' <$GVF)
+ VC=$(sed -e 's/^GIT_VERSION = //' <$GVF)
else
VC=unset
fi
test "$VN" = "$VC" || {
- echo >&2 "GITGUI_VERSION = $VN"
- echo "GITGUI_VERSION = $VN" >$GVF
+ echo >&2 "GIT_VERSION = $VN"
+ echo "GIT_VERSION = $VN" >$GVF
}
+
+