get_main_ref_store: BUG() when outside a repository

diff --git a/refs.c b/refs.c
index 9b56fa9b819fa404bf0528aeb9d84de1cf618ec7..4a44e44b6afb772e7622e58156f7897da6271678 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -1654,6 +1654,9 @@ struct ref_store *get_main_ref_store(struct repository *r)
        if (r->refs)
                return r->refs;
 
+       if (!r->gitdir)
+               BUG("attempting to get main_ref_store outside of repository");
+
        r->refs = ref_store_init(r->gitdir, REF_STORE_ALL_CAPS);
        return r->refs;
 }