ui-patch: Apply path limit to generated patch

Also indicate in the comment section of the patch that a path limit was
applied, too easily see when a generated patch is only partial.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/ui-patch.c b/ui-patch.c
index 2a8f7a5..25dc9fe 100644
--- a/ui-patch.c
+++ b/ui-patch.c
@@ -74,13 +74,13 @@ static void filepair_cb(struct diff_filepair *pair)
 			    &new_size, &binary, print_line))
 		html("Error running diff");
 	if (binary)
 		html("Binary files differ\n");
 }
 
-void cgit_print_patch(char *hex)
+void cgit_print_patch(char *hex, const char *prefix)
 {
 	struct commit *commit;
 	struct commitinfo *info;
 	unsigned char sha1[20], old_sha1[20];
 	char *patchname;
 
@@ -119,11 +119,13 @@ void cgit_print_patch(char *hex)
 	if (info->msg && *info->msg) {
 		htmlf("%s", info->msg);
 		if (info->msg[strlen(info->msg) - 1] != '\n')
 			html("\n");
 	}
 	html("---\n");
-	cgit_diff_tree(old_sha1, sha1, filepair_cb, NULL);
+	if (prefix)
+		htmlf("(limited to '%s')\n\n", prefix);
+	cgit_diff_tree(old_sha1, sha1, filepair_cb, prefix);
 	html("--\n");
 	htmlf("cgit %s\n", CGIT_VERSION);
 	cgit_free_commitinfo(info);
 }