[PATCH] Detect renames in diff family.
This rips out the rename detection engine from diff-helper and moves it
to the diff core, and updates the internal calling convention used by
diff-tree family into the diff core. In order to give the same option
name to diff-tree family as well as to diff-helper, I've changed the
earlier diff-helper '-r' option to '-M' (stands for Move; sorry but the
natural abbreviation 'r' for 'rename' is already taken for 'recursive').
Although I did a fair amount of test with the git-diff-tree with
existing rename commits in the core GIT repository, this should still be
considered beta (preview) release. This patch depends on the diff-delta
infrastructure just committed.
This implements almost everything I wanted to see in this series of
patch, except a few minor cleanups in the calling convention into diff
core, but that will be a separate cleanup patch.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/diff-files.c b/diff-files.c
index d556b96..7ffe663 100644
--- a/diff-files.c
+++ b/diff-files.c
@@ -7,10 +7,11 @@
#include "diff.h"
static const char *diff_files_usage =
-"diff-files [-p] [-q] [-r] [-z] [paths...]";
+"diff-files [-p] [-q] [-r] [-z] [-M] [paths...]";
static int generate_patch = 0;
static int line_termination = '\n';
+static int detect_rename = 0;
static int silent = 0;
static int matches_pathspec(struct cache_entry *ce, char **spec, int cnt)
@@ -79,6 +80,9 @@
; /* no-op */
else if (!strcmp(argv[1], "-z"))
line_termination = 0;
+ else if (!strcmp(argv[1], "-M")) {
+ detect_rename = generate_patch = 1;
+ }
else
usage(diff_files_usage);
argv++; argc--;
@@ -92,6 +96,9 @@
exit(1);
}
+ if (generate_patch)
+ diff_setup(detect_rename, 0, 0, 0, 0);
+
for (i = 0; i < entries; i++) {
struct stat st;
unsigned int oldmode, mode;
@@ -132,5 +139,7 @@
show_modified(oldmode, mode, ce->sha1, null_sha1,
ce->name);
}
+ if (generate_patch)
+ diff_flush();
return 0;
}
