Limit rawdiff to the requested path

The diff and patch pages honour the path in the url, which the
parameter table documents for every page, but rawdiff never handed it
to git and answered with the whole diff.

1 file changed, 5 insertions, 2 deletions

diff --git a/source/ui-diff.c b/source/ui-diff.c
index 5c9cd1c..a5202b5 100644
--- a/source/ui-diff.c
+++ b/source/ui-diff.c
@@ -535,13 +535,16 @@ static void filepair_cb(struct diff_filepair *pair)
 	end_file();
 }
 
-static void print_raw_patch(const struct object_id *old_tree_oid, const struct object_id *new_tree_oid)
+static void print_raw_patch(const struct object_id *old_tree_oid, const struct object_id *new_tree_oid,
+	const char *prefix)
 {
 	struct diff_options diffopt;
 
 	repo_diff_setup(the_repository, &diffopt);
 	diffopt.output_format = DIFF_FORMAT_PATCH;
 	diffopt.flags.recursive = 1;
+	if (prefix)
+		cgit_diff_limit_path(&diffopt, prefix);
 	diff_setup_done(&diffopt);
 
 	ctx.page.mimetype = "text/plain";
@@ -683,7 +686,7 @@ void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefi
 	cap_diffs = !path || prefix_is_dir(old_tree_oid, new_tree_oid, path);
 
 	if (raw) {
-		print_raw_patch(old_tree_oid, new_tree_oid);
+		print_raw_patch(old_tree_oid, new_tree_oid, path);
 		return;
 	}