X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=git-sh-setup.sh;h=f24c7f2d23c13e9874308a019f3c0f93225de3c0;hb=c0e9892637e8144f10f2c408e276a470520f3601;hp=55db795843514571450acf7da600b6aba10c15d4;hpb=07cdbb35ccc5dc9d9a6ef34faa8998b8221d73ee;p=git.git

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index 55db79584..f24c7f2d2 100755
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -1,10 +1,9 @@
 #!/bin/sh
 #
-# Set up GIT_DIR and GIT_OBJECT_DIRECTORY
-# and return true if everything looks ok
-#
-: ${GIT_DIR=.git}
-: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
+# This is included in commands that either have to be run from the toplevel
+# of the repository, or with GIT_DIR environment variable properly.
+# If the GIT_DIR does not look like the right correct git-repository,
+# it dies.
 
 # Having this variable in your environment would break scripts because
 # you would cause "cd" to be be taken to unexpected places.  If you
@@ -13,10 +12,72 @@
 unset CDPATH
 
 die() {
-	echo "$@" >&2
+	echo >&2 "$@"
 	exit 1
 }
 
-[ -h "$GIT_DIR/HEAD" ] &&
-[ -d "$GIT_DIR/refs" ] &&
-[ -d "$GIT_OBJECT_DIRECTORY/00" ]
+usage() {
+	die "Usage: $0 $USAGE"
+}
+
+set_reflog_action() {
+	if [ -z "${GIT_REFLOG_ACTION:+set}" ]
+	then
+		GIT_REFLOG_ACTION="$*"
+		export GIT_REFLOG_ACTION
+	fi
+}
+
+is_bare_repository () {
+	git-config --bool --get core.bare ||
+	case "$GIT_DIR" in
+	.git | */.git) echo false ;;
+	*) echo true ;;
+	esac
+}
+
+cd_to_toplevel () {
+	cdup=$(git-rev-parse --show-cdup)
+	if test ! -z "$cdup"
+	then
+		cd "$cdup" || {
+			echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
+			exit 1
+		}
+	fi
+}
+
+require_work_tree () {
+	test $(is_bare_repository) = false &&
+	test $(git-rev-parse --is-inside-git-dir) = false ||
+	die "fatal: $0 cannot be used without a working tree."
+}
+
+if [ -z "$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
+
+# Make sure we are in a valid repository of a vintage we understand.
+if [ -z "$SUBDIRECTORY_OK" ]
+then
+	: ${GIT_DIR=.git}
+	GIT_DIR=$(GIT_DIR="$GIT_DIR" git-rev-parse --git-dir) || {
+		exit=$?
+		echo >&2 "You need to run this command from the toplevel of the working tree."
+		exit $exit
+	}
+else
+	GIT_DIR=$(git-rev-parse --git-dir) || exit
+fi
+: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}