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52e9578985
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>
62 lines
1.1 KiB
Plaintext
62 lines
1.1 KiB
Plaintext
git-diff-helper(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-helper - Generates patch format output for git-diff-*
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SYNOPSIS
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--------
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'git-diff-helper' [-z] [-R] [-M] [-C] [-S<string>]
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DESCRIPTION
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-----------
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Reads output from "git-diff-cache", "git-diff-tree" and "git-diff-files" and
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generates patch format output.
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OPTIONS
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-------
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-z::
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\0 line termination on input
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-R::
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Output diff in reverse. This is useful for displaying output from
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"git-diff-cache" which always compares tree with cache or working
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file. E.g.
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git-diff-cache <tree> | git-diff-helper -R file.c
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would show a diff to bring the working file back to what
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is in the <tree>.
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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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See Also
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--------
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The section on generating patches in link:git-diff-cache.html[git-diff-cache]
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Author
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------
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Written by Junio C Hamano <junkio@cox.net>
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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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