1#!/bin/sh
2#
3# This is included in commands that either have to be run from the toplevel
4# of the repository, or with GIT_DIR environment variable properly.
5# If the GIT_DIR does not look like the right correct git-repository,
6# it dies.
78
# Having this variable in your environment would break scripts because
9# you would cause "cd" to be be taken to unexpected places. If you
10# like CDPATH, define it for your interactive shell sessions without
11# exporting it.
12unset CDPATH
1314
: ${GIT_DIR=.git}
15: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
1617
die() {
18echo >&2 "$@"
19exit 1
20}
2122
case "$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD 2>/dev/null)" in
23refs/*) : ;;
24*) false ;;
25esac &&
26[ -d "$GIT_DIR/refs" ] &&
27[ -d "$GIT_OBJECT_DIRECTORY/" ] ||
28die "Not a git repository."