Add shared diff-handling functions

This adds a standard interface for tree diffing.

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

1 files changed, 5 insertions, 0 deletions

diff --git a/cgit.h b/cgit.h
index b7f8827..24b02d7 100644
--- a/cgit.h
+++ b/cgit.h
@@ -21,2 +21,3 @@
 typedef void (*configfn)(const char *name, const char *value);
+typedef void (*filepair_fn)(struct diff_filepair *pair);
 
@@ -118,2 +119,6 @@ extern int hextoint(char c);
 extern void *cgit_free_commitinfo(struct commitinfo *info);
+extern void cgit_diff_tree(const unsigned char *old_sha1,
+                           const unsigned char *new_sha1,
+                           filepair_fn fn);
+extern void cgit_diff_commit(struct commit *commit, filepair_fn fn);