commit 47c7ee21b5f269eed3127db9d3ac7c490d1ecf0a
from: Mark Jamsek <mark@jamsek.dev>
via: Thomas Adam <thomas@xteddy.org>
date: Mon Feb 20 16:18:17 2023 UTC

use newly publicised diff_chunk_type() diff API

To skip chunks without newly added lines.

ok stsp@

commit - ae012d47ffe30ad1e3d00cbca2485f2c10a0f558
commit + 47c7ee21b5f269eed3127db9d3ac7c490d1ecf0a
blob - c9f89f2a3d0213ed6de0e7ee94c89727f29a8b91
blob + 8438fa2bd487df57620eb38e696505af64782a4d
--- lib/worktree.c
+++ lib/worktree.c
@@ -1559,17 +1559,14 @@ 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 */
 		}