Function ref_store_remove_on_disk

refs.c:2238–2281

}

int ref_store_remove_on_disk(struct ref_store *refs, struct strbuf *err)
{
	int ret = refs->be->remove_on_disk(refs, err);

	if (!ret) {
		enum ref_storage_format format = ref_storage_format_by_name(refs->be->name);
		struct strbuf sb = STRBUF_INIT;

		/* Backends apart from the files backend create stubs. */
		if (format == REF_STORAGE_FORMAT_FILES)
			return ret;

		/* Alternate refs backend require stubs in the gitdir. */
		if (refs->repo->ref_storage_payload)
			return ret;

		strbuf_addf(&sb, "%s/HEAD", refs->gitdir);
		if (unlink(sb.buf) < 0) {
			strbuf_addf(err, "could not delete stub HEAD: %s",
				    strerror(errno));
			ret = -1;
		}
		strbuf_reset(&sb);

		strbuf_addf(&sb, "%s/refs/heads", refs->gitdir);
		if (unlink(sb.buf) < 0) {
			strbuf_addf(err, "could not delete stub heads: %s",
				    strerror(errno));
			ret = -1;
		}
		strbuf_reset(&sb);

		strbuf_addf(&sb, "%s/refs", refs->gitdir);
		if (rmdir(sb.buf) < 0) {
			strbuf_addf(err, "could not delete refs directory: %s",
				    strerror(errno));
			ret = -1;
		}

		strbuf_release(&sb);
	}

	return ret;
}

int repo_resolve_gitlink_ref(struct repository *r,
			     const char *submodule, const char *refname,