Function fetch_one

builtin/fetch.c:2389–2465

}

static int fetch_one(struct remote *remote, int argc, const char **argv,
		     int prune_tags_ok, int use_stdin_refspecs,
		     const struct fetch_config *config,
		     struct list_objects_filter_options *filter_options)
{
	struct refspec rs = REFSPEC_INIT_FETCH;
	int i;
	int exit_code;
	int maybe_prune_tags;
	int remote_via_config = remote_is_configured(remote, 0);

	if (!remote)
		die(_("no remote repository specified; please specify either a URL or a\n"
		      "remote name from which new revisions should be fetched"));

	gtransport = prepare_transport(remote, 1, filter_options);

	if (prune < 0) {
		/* no command line request */
		if (0 <= remote->prune)
			prune = remote->prune;
		else if (0 <= config->prune)
			prune = config->prune;
		else
			prune = PRUNE_BY_DEFAULT;
	}

	if (prune_tags < 0) {
		/* no command line request */
		if (0 <= remote->prune_tags)
			prune_tags = remote->prune_tags;
		else if (0 <= config->prune_tags)
			prune_tags = config->prune_tags;
		else
			prune_tags = PRUNE_TAGS_BY_DEFAULT;
	}

	maybe_prune_tags = prune_tags_ok && prune_tags;
	if (maybe_prune_tags && remote_via_config)
		refspec_append(&remote->fetch, TAG_REFSPEC);

	if (maybe_prune_tags && (argc || !remote_via_config))
		refspec_append(&rs, TAG_REFSPEC);

	for (i = 0; i < argc; i++) {
		if (!strcmp(argv[i], "tag")) {
			i++;
			if (i >= argc)
				die(_("you need to specify a tag name"));

			refspec_appendf(&rs, "refs/tags/%s:refs/tags/%s",
					argv[i], argv[i]);
		} else {
			refspec_append(&rs, argv[i]);
		}
	}

	if (use_stdin_refspecs) {