ui-diff: make diffstat header a link to the full diff

When printing a path-filtered diff it wasn't obvious how to get back to
the full diff (clicking the 'diff' tab would do this). Making the diffstat
heading into a link seems to improve the usability.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/ui-diff.c b/ui-diff.c
index 7ab1e49..878496d 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -141,7 +141,10 @@ void cgit_print_diffstat(const unsigned char *old_sha1,
 {
         int i;
 
-        html("<div class='diffstat-header'>Diffstat</div>");
+        html("<div class='diffstat-header'>");
+        cgit_diff_link("Diffstat", NULL, NULL, ctx.qry.head, ctx.qry.sha1,
+                       ctx.qry.sha2, NULL);
+        html("</div>");
         html("<table summary='diffstat' class='diffstat'>");
         max_changes = 0;
         cgit_diff_tree(old_sha1, new_sha1, inspect_filepair, NULL);