X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=git-sh-setup.sh;h=d15747f1ed8f875a3c1bb7129e50bfbc8d2b033f;hb=e968751573a4ded76201a0e4414ec36649a92dda;hp=b4f10224baf8328a9d6efa761b025450df414bb2;hpb=2a1ddc58e4d2220feea7eba4623dac07a0f83f94;p=git.git

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index b4f10224..d15747f1 100755
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -11,13 +11,41 @@
 # exporting it.
 unset CDPATH
 
-: ${GIT_DIR=.git}
-: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
-
 die() {
 	echo >&2 "$@"
 	exit 1
 }
 
-# Make sure we are in a valid repository of a vintage we understand.
-GIT_DIR="$GIT_DIR" git-var GIT_AUTHOR_IDENT >/dev/null || exit
+usage() {
+	die "Usage: $0 $USAGE"
+}
+
+if [ -z "$LONG_USAGE" ]
+then
+	LONG_USAGE="Usage: $0 $USAGE"
+else
+	LONG_USAGE="Usage: $0 $USAGE
+
+$LONG_USAGE"
+fi
+
+case "$1" in
+	-h|--h|--he|--hel|--help)
+	echo "$LONG_USAGE"
+	exit
+esac
+
+if [ -z "$SUBDIRECTORY_OK" ]
+then
+	: ${GIT_DIR=.git}
+	: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
+
+	# Make sure we are in a valid repository of a vintage we understand.
+	GIT_DIR="$GIT_DIR" git repo-config --get core.nosuch >/dev/null
+	if test $? = 128
+	then
+	    exit
+	fi
+else
+	GIT_DIR=$(git-rev-parse --git-dir) || exit
+fi