Write diff output to a file in struct diff_options

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/diff.h b/diff.h
index 9a652e7f38..f2c77391a9 100644
--- a/diff.h
+++ b/diff.h
@@ -98,6 +98,9 @@ struct diff_options {
 	/* this is set by diffcore for DIFF_FORMAT_PATCH */
 	int found_changes;
 
+	FILE *file;
+	int close_file;
+
 	int nr_paths;
 	const char **paths;
 	int *pathlens;