void diff_flush(struct diff_options *options)
{
	struct diff_queue_struct *q = &diff_queued_diff;
	int i, output_format = options->output_format;
	int separator = 0;

	/*
	 * Order: raw, stat, summary, patch
	 * or:    name/name-status/checkdiff (other bits clear)
	 */
	if (!q->nr)
		goto free_queue;

	if (output_format & (DIFF_FORMAT_RAW |
			     DIFF_FORMAT_NAME |
			     DIFF_FORMAT_NAME_STATUS |
			     DIFF_FORMAT_CHECKDIFF)) {
		for (i = 0; i < q->nr; i++) {
			struct diff_filepair *p = q->queue[i];
			if (check_pair_status(p))
				flush_one_pair(p, options);
		}
		separator++;
	}

	if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_SHORTSTAT|DIFF_FORMAT_NUMSTAT)) {
		struct diffstat_t diffstat;

		memset(&diffstat, 0, sizeof(struct diffstat_t));
		diffstat.xm.consume = diffstat_consume;
		for (i = 0; i < q->nr; i++) {
			struct diff_filepair *p = q->queue[i];
			if (check_pair_status(p))
				diff_flush_stat(p, options, &diffstat);
		}
		if (output_format & DIFF_FORMAT_NUMSTAT)
			show_numstat(&diffstat, options);
		if (output_format & DIFF_FORMAT_DIFFSTAT)
			show_stats(&diffstat, options);
		if (output_format & DIFF_FORMAT_SHORTSTAT)
			show_shortstats(&diffstat, options);
		free_diffstat_info(&diffstat);
		separator++;
	}
	if (output_format & DIFF_FORMAT_DIRSTAT)
		show_dirstat(options);

	if (output_format & DIFF_FORMAT_SUMMARY && !is_summary_empty(q)) {
		for (i = 0; i < q->nr; i++)
			diff_summary(options->file, q->queue[i]);
		separator++;
	}

	if (output_format & DIFF_FORMAT_PATCH) {
		if (separator) {
			if (options->stat_sep) {
				/* attach patch instead of inline */
				fputs(options->stat_sep, options->file);
			} else {
				putc(options->line_termination, options->file);
			}
		}

		for (i = 0; i < q->nr; i++) {
			struct diff_filepair *p = q->queue[i];
			if (check_pair_status(p))
				diff_flush_patch(p, options);
		}
	}

	if (output_format & DIFF_FORMAT_CALLBACK)
		options->format_callback(q, options, options->format_callback_data);

	for (i = 0; i < q->nr; i++)
		diff_free_filepair(q->queue[i]);
free_queue:
	free(q->queue);
	q->queue = NULL;
	q->nr = q->alloc = 0;
	if (options->close_file)
		fclose(options->file);
}
Unknown