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[PATCH] Detect renames in diff family.

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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>
This commit is contained in:
Junio C Hamano
2005-05-19 03:32:35 -07:00
committed by Linus Torvalds
parent a310d43494
commit 5c97558c9a
12 changed files with 534 additions and 240 deletions
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11
diff-files.c
View File

@ -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 @@ int main(int argc, char **argv)
; /* 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 @@ int main(int argc, char **argv)
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 @@ int main(int argc, char **argv)
show_modified(oldmode, mode, ce->sha1, null_sha1,
ce->name);
}
if (generate_patch)
diff_flush();
return 0;
}