Add prefix parameter to cgit_diff_tree()

This paramter can be used to restrict a diff to the specified path prefix.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/cgit.h b/cgit.h
index e3d9cb8..5ef0bc5 100644
--- a/cgit.h
+++ b/cgit.h
@@ -172,3 +172,3 @@ extern void cgit_diff_tree(const unsigned char *old_sha1,
 			   const unsigned char *new_sha1,
-			   filepair_fn fn);
+			   filepair_fn fn, const char *prefix);