[PATCH] The diff-raw format updates.

Update the diff-raw format as Linus and I discussed, except that
it does not use sequence of underscore '_' letters to express
nonexistence.  All '0' mode is used for that purpose instead.

The new diff-raw format can express rename/copy, and the earlier
restriction that -M and -C _must_ be used with the patch format
output is no longer necessary.  The patch makes -M and -C flags
independent of -p flag, so you need to say git-whatchanged -M -p
to get the diff/patch format.

Updated are both documentations and tests.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 11 insertions, 1 deletions

diff --git a/diff.h b/diff.h
index 7b9f37d1b..1fc8469cf 100644
--- a/diff.h
+++ b/diff.h
@@ -15,11 +15,21 @@ extern void diff_change(unsigned mode1, unsigned mode2,
 			     const unsigned char *sha2,
 			     const char *base, const char *path);
 
+extern void diff_guif(unsigned mode1,
+		      unsigned mode2,
+		      const unsigned char *sha1,
+		      const unsigned char *sha2,
+		      const char *path1,
+		      const char *path2);
+
 extern void diff_unmerge(const char *path);
 
 extern int diff_scoreopt_parse(const char *opt);
 
-extern void diff_setup(int reverse, int diff_raw_output);
+#define DIFF_FORMAT_HUMAN   0
+#define DIFF_FORMAT_MACHINE 1
+#define DIFF_FORMAT_PATCH   2
+extern void diff_setup(int reverse, int diff_output_style);
 
 extern void diff_detect_rename(int, int);
 extern void diff_pickaxe(const char *);