commit b72f51ffc39028023059fc994542565691b669fa
from: Stefan Sperling <stsp@stsp.name>
date: Thu Jan 06 19:19:36 2022 UTC

add missing line offset information for unidiff output

We forgot to generate line offset information for lines of the form:
"Binary files %s and %s differ"
Which is causing scrolling problems in tog's diff view.

ok thomas_adam

commit - f1dbec24f9a9553e22659f6c592c91e96221f6b9
commit + b72f51ffc39028023059fc994542565691b669fa
blob - 5fc87f7b15b8e6a3c41ccc01901815d9d52b741a
blob + f3f4ad74c807d77b28b7b0af68f0d0ef2435d5c1
--- lib/diff_output_unidiff.c
+++ lib/diff_output_unidiff.c
@@ -425,7 +425,8 @@ diff_output_unidiff(struct diff_output_info **output_i
 	bool show_function_prototypes = (flags & DIFF_FLAG_SHOW_PROTOTYPES);
 	bool force_text = (flags & DIFF_FLAG_FORCE_TEXT_DATA);
 	bool have_binary = (atomizer_flags & DIFF_ATOMIZER_FOUND_BINARY_DATA);
-	int i;
+	off_t outoff = 0, *offp;
+	int rc, i;
 
 	if (!result)
 		return EINVAL;
@@ -447,9 +448,23 @@ diff_output_unidiff(struct diff_output_info **output_i
 			if (t != CHUNK_MINUS && t != CHUNK_PLUS)
 				continue;
 
-			fprintf(dest, "Binary files %s and %s differ\n",
+			if (outinfo && outinfo->line_offsets.len > 0) {
+				unsigned int idx =
+				    outinfo->line_offsets.len - 1;
+				outoff = outinfo->line_offsets.head[idx];
+			}
+
+			rc = fprintf(dest, "Binary files %s and %s differ\n",
 			    diff_output_get_label_left(info),
 			    diff_output_get_label_right(info));
+			if (outinfo) {
+				ARRAYLIST_ADD(offp, outinfo->line_offsets);
+				if (offp == NULL)
+					return ENOMEM;
+				outoff += rc;
+				*offp = outoff;
+
+			}
 			break;
 		}