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.\" $NetBSD: patchdiff.1,v 1.5 2011/02/02 10:36:20 wiz Exp $
.\"
.\" Copyright (c) 2000-2011 by Thomas Klausner <wiz@NetBSD.org>
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd January 31, 2011
.Dt PATCHDIFF 1
.Os
.Sh NAME
.Nm patchdiff
.Nd compare sets of patches
.Sh SYNOPSIS
.Nm
.Sh DESCRIPTION
.Nm
is a perl script that simplifies comparing a set of previously
existing patches with a new one created with
.Xr mkpatches 1 .
.Pp
.Nm
must be called from the package's main directory, that is
.Pa ${PKGSRC}/category/program .
For each patch existing in either the
.Pa patches
directory, it is compared with its backup file
.Pq Pa patch-foo.orig
using
.Xr diff 1 .
If no relevant differences are found, the original patch is restored.
.Sh SEE ALSO
.Xr diff 1 ,
.Xr patchdiff 1 ,
.Xr pkgdiff 1
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