Function open_submodule

submodule.c:511–528

* Initialize a repository struct for a submodule based on the provided 'path'. * * Returns the repository struct on success, * NULL when the submodule is not present. */

 * NULL when the submodule is not present.
 */
static struct repository *open_submodule(const char *path)
{
	struct strbuf sb = STRBUF_INIT;
	struct repository *out = xmalloc(sizeof(*out));

	if (submodule_to_gitdir(the_repository, &sb, path) ||
	    repo_init(out, sb.buf, NULL)) {
		strbuf_release(&sb);
		free(out);
		return NULL;
	}

	/* Mark it as a submodule */
	out->submodule_prefix = xstrdup(path);

	strbuf_release(&sb);
	return out;
}

/*
 * Helper function to display the submodule header line prior to the full