f345b0a066
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>
72 lines
1.4 KiB
Plaintext
72 lines
1.4 KiB
Plaintext
git-diff-files(1)
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=================
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v0.1, May 2005
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NAME
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----
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git-diff-files - Compares files in the working tree and the cache
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SYNOPSIS
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--------
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'git-diff-files' [-p] [-q] [-r] [-z] [-B] [-M] [-C] [-R] [-S<string>] [--pickaxe-all] [<pattern>...]
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DESCRIPTION
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-----------
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Compares the files in the working tree and the cache. When paths
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are specified, compares only those named paths. Otherwise all
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entries in the cache are compared. The output format is the
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same as "git-diff-cache" and "git-diff-tree".
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OPTIONS
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-------
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-p::
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generate patch (see section on generating patches).
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-q::
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Remain silent even on nonexisting files
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-R::
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Output diff in reverse.
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-B::
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Break complete rewrite changes into pairs of delete and create.
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-M::
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Detect renames.
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-C::
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Detect copies as well as renames.
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-S<string>::
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Look for differences that contains the change in <string>.
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--pickaxe-all::
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When -S finds a change, show all the changes in that
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changeset, not just the files that contains the change
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in <string>.
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-r::
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This flag does not mean anything. It is there only to match
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git-diff-tree. Unlike git-diff-tree, git-diff-files always looks
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at all the subdirectories.
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Output format
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-------------
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include::diff-format.txt[]
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Author
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------
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Written by Linus Torvalds <torvalds@osdl.org>
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Documentation
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--------------
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Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>.
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GIT
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---
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Part of the link:git.html[git] suite
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