Function show_combined_diff

combine-diff.c:1284–1296

* The result (p->elem) is from the working tree and their * parents are typically from multiple stages during a merge * (i.e. diff-files) or the state in HEAD and in the index * (i.e. diff-index). */

 * (i.e. diff-index).
 */
void show_combined_diff(struct combine_diff_path *p,
		       int num_parent,
		       struct rev_info *rev)
{
	struct diff_options *opt = &rev->diffopt;

	if (opt->output_format & (DIFF_FORMAT_RAW |
				  DIFF_FORMAT_NAME |
				  DIFF_FORMAT_NAME_STATUS))
		show_raw_diff(p, num_parent, rev);
	else if (opt->output_format & DIFF_FORMAT_PATCH)
		show_patch_diff(p, num_parent, 1, rev);
}

static void free_combined_pair(struct diff_filepair *pair)
{