From 1a6025b7a515a23ab4c83f4a5da468e00e4f0a38 Mon Sep 17 00:00:00 2001
From: Lars Hjemli <hjemli@gmail.com>
Date: Mon, 1 Oct 2007 11:46:38 +0200
Subject: [PATCH] Add prefix parameter to cgit_print_diff()

This allows a diff to be restricted to the path prefix specified in the url.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>
---
 cgit.c    | 2 +-
 cgit.h    | 2 +-
 ui-diff.c | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/cgit.c b/cgit.c
index c86d290..1b85b15 100644
--- a/cgit.c
+++ b/cgit.c
@@ -107,7 +107,7 @@ static void cgit_print_repo_page(struct cacheitem *item)
 		cgit_print_tag(cgit_query_sha1);
 		break;
 	case CMD_DIFF:
-		cgit_print_diff(cgit_query_sha1, cgit_query_sha2);
+		cgit_print_diff(cgit_query_sha1, cgit_query_sha2, cgit_query_path);
 		break;
 	default:
 		cgit_print_error("Invalid request");
diff --git a/cgit.h b/cgit.h
index 5ef0bc5..e96311f 100644
--- a/cgit.h
+++ b/cgit.h
@@ -238,7 +238,7 @@ extern void cgit_print_blob(struct cacheitem *item, const char *hex, char *path)
 extern void cgit_print_tree(const char *rev, char *path);
 extern void cgit_print_commit(char *hex);
 extern void cgit_print_tag(char *revname);
-extern void cgit_print_diff(const char *new_hex, const char *old_hex);
+extern void cgit_print_diff(const char *new_hex, const char *old_hex, const char *prefix);
 extern void cgit_print_snapshot(struct cacheitem *item, const char *head,
 				const char *hex, const char *prefix,
 				const char *filename, int snapshot);
diff --git a/ui-diff.c b/ui-diff.c
index 11a2ff8..ba0030f 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -89,7 +89,7 @@ static void filepair_cb(struct diff_filepair *pair)
 		cgit_print_error("Error running diff");
 }
 
-void cgit_print_diff(const char *new_rev, const char *old_rev)
+void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefix)
 {
 	unsigned char sha1[20], sha2[20];
 	enum object_type type;
@@ -133,7 +133,7 @@ void cgit_print_diff(const char *new_rev, const char *old_rev)
 	}
 	html("<table class='diff'>");
 	html("<tr><td>");
-	cgit_diff_tree(sha2, sha1, filepair_cb, NULL);
+	cgit_diff_tree(sha2, sha1, filepair_cb, prefix);
 	html("</td></tr>");
 	html("</table>");
 }