git/Documentation/git-diff-files.txt
Junio C Hamano 52e9578985 [PATCH] Introducing software archaeologist's tool "pickaxe".
This steals the "pickaxe" feature from JIT and make it available
to the bare Plumbing layer.  From the command line, the user
gives a string he is intersted in.

Using the diff-core infrastructure previously introduced, it
filters the differences to limit the output only to the diffs
between <src> and <dst> where the string appears only in one but
not in the other.  For example:

 $ ./git-rev-list HEAD | ./git-diff-tree -Sdiff-tree-helper --stdin -M

would show the diffs that touch the string "diff-tree-helper".

In real software-archaeologist application, you would typically
look for a few to several lines of code and see where that code
came from.

The "pickaxe" module runs after "rename/copy detection" module,
so it even crosses the file rename boundary, as the above
example demonstrates.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-21 09:58:03 -07:00

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