Lua Patch

wiki

Web Site

• http://lua-users.org/wiki/LuaPatch (this page)

Description

This is a Lua implementation of the patch utility [1]. It only supports unified diffs (diff -u).

A main motivation of this utility is to provide a platform-independent, easily deployable, and simple patch utility for LuaRocks [2].

Usage

For help:

./patch.lua --help

To patch current directory using patch file "mypatch":

./patch.lua < mypatch

Download/Source

• http://github.com/davidm/lua-patch

Status

This code is new should undergo further testing. Some of the style might be further improved as it was converted from Python.

Note: Those code in the direct port is fairly ugly. It is being largely rewritten. If you want it sooner, just ask.

License

(c) 2008 David Manura, Licensed under the same terms as Lua (MIT license). Code is heavilly based on the Python-based patch.py version 8.06-1, Copyright (c) 2008 rainforce.org, MIT License . See included LICENSE.txt file.

Note: the source reuses Lua optparse (CommandLineParsing) and EnhancedFileLines (DavidManura).

See Also

Related documentation and implementations on patch:

• [1] [Wikipedia:Patch (Unix)]
• [2] [luarocks-developers:2008-September/000899.html]
• POSIX [patch] and [diff] specifications
• [diffutils manual page on the patch format]
• [GNU patch man page]
• [Unified Diff Format] by Guido van Rossum
• [GNU patch]
• [patch.py] - Python implementation of patch (which this is based on)
• [phppatcher] - PHP implementation of patch
• [ldiff & lpatch] (5.1) A very small diff and patch tool with proprietary binary diff format
• [lua-xdiff] - Lua binding to the LibXDiff library