Function set_merge

remote.c:1757–1791

}

static void set_merge(struct repository *repo, struct branch *ret)
{
	struct remote *remote;
	char *ref;
	struct object_id oid;
	int i;

	if (!ret)
		return; /* no branch */
	if (ret->set_merge)
		return; /* already run */
	if (!ret->remote_name || !ret->merge_nr) {
		/*
		 * no merge config; let's make sure we don't confuse callers
		 * with a non-zero merge_nr but a NULL merge
		 */
		merge_clear(ret);
		return;
	}
	ret->set_merge = 1;

	remote = remotes_remote_get(repo, ret->remote_name);

	for (i = 0; i < ret->merge_nr; i++) {
		if (!remote_find_tracking(remote, ret->merge[i]) ||
		    strcmp(ret->remote_name, "."))
			continue;
		if (repo_dwim_ref(repo, ret->merge[i]->src,
				  strlen(ret->merge[i]->src), &oid, &ref,
				  0) == 1)
			ret->merge[i]->dst = ref;
		else
			ret->merge[i]->dst = xstrdup(ret->merge[i]->src);
	}
}

static struct branch *repo_branch_get(struct repository *repo, const char *name)
{