unset CDPATH
die() {
- echo "$@" >&2
+ echo >&2 "$@"
exit 1
}
-check_clean_tree() {
- dirty1_=`git-update-index -q --refresh` && {
- dirty2_=`git-diff-index --name-only --cached HEAD`
- case "$dirty2_" in '') : ;; *) (exit 1) ;; esac
- } || {
- echo >&2 "$dirty1_"
- echo "$dirty2_" | sed >&2 -e 's/^/modified: /'
- (exit 1)
- }
-}
-
-[ -h "$GIT_DIR/HEAD" ] &&
+case "$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD 2>/dev/null)" in
+refs/*) : ;;
+*) false ;;
+esac &&
[ -d "$GIT_DIR/refs" ] &&
-[ -d "$GIT_OBJECT_DIRECTORY/00" ]
+[ -d "$GIT_OBJECT_DIRECTORY/" ]