130 lines
4.5 KiB
Perl
Executable file
130 lines
4.5 KiB
Perl
Executable file
:
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eval 'exec perl -wS $0 ${1+"$@"}'
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if 0;
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#*************************************************************************
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#
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#
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# Copyright 2008 by Sun Microsystems, Inc.
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#
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# OpenOffice.org - a multi-platform office productivity suite
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#
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# $RCSfile: patch_sanitizer.pl,v $
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#
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# $Revision: 1.6 $
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#
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# This file is part of OpenOffice.org.
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#
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# OpenOffice.org is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License version 3
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# only, as published by the Free Software Foundation.
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#
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# OpenOffice.org is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License version 3 for more details
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# (a copy is included in the LICENSE file that accompanied this code).
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#
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# You should have received a copy of the GNU Lesser General Public License
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# version 3 along with OpenOffice.org. If not, see
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# <http://www.openoffice.org/license.html>
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# for a copy of the LGPLv3 License.
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#
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#*************************************************************************
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use utf8;
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use warnings;
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use strict;
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# command line arguments
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my $oldpatchfile = shift;
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my $newpatchfile = shift;
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my $sortedfile = shift;
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show_help() unless defined $oldpatchfile and defined $newpatchfile and defined $sortedfile;
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my %oldpatchfile = parse_patch($oldpatchfile);
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my %newpatchfile = parse_patch($newpatchfile);
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open SORTEDPATCH, "> $sortedfile";
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foreach my $file (sort (keys %newpatchfile)) {
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print SORTEDPATCH $file."\t";
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if (defined($oldpatchfile{$file})) {
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if ( (join '', @{$oldpatchfile{$file}{'data'}}) eq (join '', @{$newpatchfile{$file}{'data'}}) ) {
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# patch data for the file hasn't been modified, use the header from
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# the old patch, to reduce noise (keep the old timestamps)
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print SORTEDPATCH $oldpatchfile{$file}{'origtimestamp'}."\n";
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print SORTEDPATCH $oldpatchfile{$file}{'patchedfilename'}."\t";
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print SORTEDPATCH $oldpatchfile{$file}{'patchedtimestamp'}."\n";
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print SORTEDPATCH @{$oldpatchfile{$file}{'data'}};
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next;
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}
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}
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# either file wasn't patched before, or the patchset changed, so use the new
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# values for it..
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print SORTEDPATCH $newpatchfile{$file}{'origtimestamp'}."\n";
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print SORTEDPATCH $newpatchfile{$file}{'patchedfilename'}."\t";
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print SORTEDPATCH $newpatchfile{$file}{'patchedtimestamp'}."\n";
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print SORTEDPATCH @{$newpatchfile{$file}{'data'}};
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}
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close SORTEDPATCH;
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###############
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# Helper subs
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###############
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sub show_help {
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print "Usage: $0 oldpatch newpatch outputfilename\n";
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print "oldpatch and newpatch can be the very same file\n";
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print "will output a sanitized form of newpatch to outputfilename\n";
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print "if outputfilename is '-', the patch will be printed to stdout\n";
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print "sanitized means: It will avoid all unnecessary changes\n";
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exit 1;
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}
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sub parse_patch {
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my $patchfile = shift;
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my $patchtype;
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my $pfirst;
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my $psecond;
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my %hunks = ();
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my $origfilename;
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open PATCHFILE, "< $patchfile" or die "Cannot open file $patchfile $!";
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my @patchfile = <PATCHFILE>;
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close PATCHFILE;
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return %hunks if ( $#patchfile == -1 );
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if ( $patchfile[0] =~ /^---/ ) {
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$patchtype = "unified";
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$pfirst = '^--- [^\*]*$';
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$psecond = '^\+\+\+ [^\*]*$';
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} elsif ( $patchfile[0] =~ /^\*\*\*/ ) {
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$patchtype = "content";
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$pfirst = '^\*\*\* [^\*]*$';
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$psecond = '^--- .*\t.*$';
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} else {
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die "unknown patch format\n";
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}
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foreach (@patchfile) {
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if ( /$pfirst/ ) {
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my $timestamp;
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# extract the filename, to be able to compare the old
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# with the new file...
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($origfilename, $timestamp) = split(/\t/, $_, 2);
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chomp $timestamp;
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# ideally convert the timestamp to iso-format...
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$hunks{$origfilename}{'origtimestamp'} = $timestamp;
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next;
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} elsif ( $_ =~ /$psecond/ ) {
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my ($filename, $timestamp) = split(/\t/, $_, 2);
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chomp $timestamp;
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# ideally convert the timestamp to iso-format...
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$hunks{$origfilename}{'patchedfilename'} = $filename;
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$hunks{$origfilename}{'patchedtimestamp'} = $timestamp;
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next;
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}
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push (@{$hunks{$origfilename}{'data'}}, $_);
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}
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return %hunks;
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}
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