Add set_git_dir() function

diff --git a/environment.c b/environment.c
index f83fb9e44806c03cde06eede7888a4dcb901c5c3..a571fae607d56fedc5353c5e8e0206fdc4e59c06 100644 (file)
--- a/environment.c
+++ b/environment.c
@@ -107,3 +107,11 @@ char *get_graft_file(void)
                setup_git_env();
        return git_graft_file;
 }
+
+int set_git_dir(const char *path)
+{
+       if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
+               return error("Could not set GIT_DIR to '%s'", path);
+       setup_git_env();
+       return 0;
+}