builtin/blame.c::find_copy_in_blob: no need to scan for region end

dakhubgit · gitster · commit 3ee8944fa508 · 2014-02-25T09:51:24.000-08:00
The region end can be looked up just like its beginning.

Signed-off-by: David Kastrup &lt;dak@gnu.org&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
diff --git a/builtin/blame.c b/builtin/blame.c
@@ -923,7 +923,6 @@ static void find_copy_in_blob(struct scoreboard *sb,
 			      mmfile_t *file_p)
 {
 	const char *cp;
-	int cnt;
 	mmfile_t file_o;
 	struct handle_split_cb_data d;
 
@@ -934,13 +933,7 @@ static void find_copy_in_blob(struct scoreboard *sb,
 	 */
 	cp = nth_line(sb, ent->lno);
 	file_o.ptr = (char *) cp;
-	cnt = ent->num_lines;
-
-	while (cnt && cp < sb->final_buf + sb->final_buf_size) {
-		if (*cp++ == '\n')
-			cnt--;
-	}
-	file_o.size = cp - file_o.ptr;
+	file_o.size = nth_line(sb, ent->lno + ent->num_lines) - cp;
 
 	/*
 	 * file_o is a part of final image we are annotating.
