| #!/bin/sh |
| |
| GVF=GIT-VERSION-FILE |
| DEF_VER=0.12.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 $vn; break;; |
| esac |
| done |
| } |
| |
| # Always use the tarball version file if found, just |
| # in case we are somehow contained in a larger git |
| # repository that doesn't actually track our state. |
| # (At least one package manager is doing this.) |
| # |
| # We may be a subproject, so try looking for the merge |
| # commit that supplied this directory content if we are |
| # not at the toplevel. We probably will always be the |
| # second parent in the commit, but we shouldn't rely on |
| # that fact. |
| # |
| # If we are at the toplevel or the merge assumption fails |
| # try looking for a gitgui-* tag. |
| |
| if test -f version && |
| VN=$(cat version) |
| 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 |
| 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'); |
| 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 |
| } |