commit 45e6b2f427b11e0fc760c10ee96eae3a6a5f06e7
from: Mark Jamsek <mark@jamsek.dev>
date: Mon Feb 20 12:35:18 2023 UTC

use newly publicised diff_chunk_type() diff API

To skip chunks without newly added lines.

ok stsp@

commit - c251eeea7a670a2a176084dd3b4ac4dde6c55c10
commit + 45e6b2f427b11e0fc760c10ee96eae3a6a5f06e7
blob - a3aff0453202ab4f6f93c80713a58d91577c7639
blob + a8f4644bca44f95a2c1bca3d548dcd292f1f855d
--- lib/worktree.c
+++ lib/worktree.c
@@ -1561,17 +1561,14 @@ get_modified_file_content_status(unsigned char *status
 		struct diff_chunk *c;
 		struct diff_chunk_context cc = {};
 		off_t pos;
-		int clc, crc;
 
 		/*
 		 * We can optimise a little by advancing straight
 		 * to the next chunk if this one has no added lines.
 		 */
 		c = diff_chunk_get(r, n);
-		clc = diff_chunk_get_left_count(c);
-		crc = diff_chunk_get_right_count(c);
 
-		if (!crc || crc == clc) {
+		if (diff_chunk_type(c) != CHUNK_PLUS) {
 			nchunks_parsed = 1;
 			continue;  /* removed or unchanged lines */
 		}