# exporting it.
unset CDPATH
-: ${GIT_DIR=.git}
-: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
-
die() {
echo >&2 "$@"
exit 1
}
+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.
-GIT_DIR="$GIT_DIR" git-var GIT_AUTHOR_IDENT >/dev/null || exit
+if [ -z "$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"}