Function reassemble_patch

add-patch.c:1015–1049

}

static void reassemble_patch(struct add_p_state *s,
			     struct file_diff *file_diff, int use_all,
			     struct strbuf *out)
{
	struct hunk *hunk;
	size_t save_len = s->plain.len, i;
	ssize_t delta = 0;

	render_diff_header(s, file_diff, 0, out);

	for (i = file_diff->mode_change; i < file_diff->hunk_nr; i++) {
		struct hunk merged = { 0 };

		hunk = file_diff->hunk + i;
		if (!use_all && hunk->use != USE_HUNK)
			delta += hunk->header.old_count
				- hunk->header.new_count;
		else {
			/* merge overlapping hunks into a temporary hunk */
			if (merge_hunks(s, file_diff, &i, use_all, &merged))
				hunk = &merged;

			render_hunk(s, hunk, delta, 0, out);

			/*
			 * In case `merge_hunks()` used `plain` as a scratch
			 * pad (this happens when an edited hunk had to be
			 * coalesced with another hunk).
			 */
			strbuf_setlen(&s->plain, save_len);

			delta += hunk->delta;
		}
	}
}

static int split_hunk(struct add_p_state *s, struct file_diff *file_diff,
		       size_t hunk_index)