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| author | Junio C Hamano <junkio@cox.net> | 2005-05-30 00:08:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-30 10:35:49 -0700 |
| commit | f345b0a066572206aac4a4f9a57d746e213b6bff (patch) | |
| tree | 60d5548ce7ca6e62b8b934cc016c01ddb373c3fb /Makefile | |
| parent | 2cd68882ee8629f9782be017007fff4c78e45e45 (diff) | |
| download | git-f345b0a066572206aac4a4f9a57d746e213b6bff.tar.gz | |
[PATCH] Add -B flag to diff-* brothers.
A new diffcore transformation, diffcore-break.c, is introduced.
When the -B flag is given, a patch that represents a complete
rewrite is broken into a deletion followed by a creation. This
makes it easier to review such a complete rewrite patch.
The -B flag takes the same syntax as the -M and -C flags to
specify the minimum amount of non-source material the resulting
file needs to have to be considered a complete rewrite, and
defaults to 99% if not specified.
As the new test t4008-diff-break-rewrite.sh demonstrates, if a
file is a complete rewrite, it is broken into a delete/create
pair, which can further be subjected to the usual rename
detection if -M or -C is used. For example, if file0 gets
completely rewritten to make it as if it were rather based on
file1 which itself disappeared, the following happens:
The original change looks like this:
file0 --> file0' (quite different from file0)
file1 --> /dev/null
After diffcore-break runs, it would become this:
file0 --> /dev/null
/dev/null --> file0'
file1 --> /dev/null
Then diffcore-rename matches them up:
file1 --> file0'
The internal score values are finer grained now. Earlier
maximum of 10000 has been raised to 60000; there is no user
visible changes but there is no reason to waste available bits.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -48,7 +48,7 @@ LIB_OBJS += strbuf.o LIB_H += diff.h count-delta.h LIB_OBJS += diff.o diffcore-rename.o diffcore-pickaxe.o diffcore-pathspec.o \ - count-delta.o + count-delta.o diffcore-break.o LIB_OBJS += gitenv.o @@ -130,6 +130,7 @@ diff.o: $(LIB_H) diffcore.h diffcore-rename.o : $(LIB_H) diffcore.h diffcore-pathspec.o : $(LIB_H) diffcore.h diffcore-pickaxe.o : $(LIB_H) diffcore.h +diffcore-break.o : $(LIB_H) diffcore.h test: all $(MAKE) -C t/ all |