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-rwxr-xr-xWebKitTools/Scripts/svn-unapply280
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diff --git a/WebKitTools/Scripts/svn-unapply b/WebKitTools/Scripts/svn-unapply
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-#!/usr/bin/perl -w
-
-# Copyright (C) 2005, 2006, 2007 Apple Inc. All rights reserved.
-# Copyright (C) 2009 Cameron McCormack <cam@mcc.id.au>
-# Copyright (C) 2010 Chris Jerdonek (chris.jerdonek@gmail.com)
-#
-# 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.
-# 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
-# its contributors may be used to endorse or promote products derived
-# from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS 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.
-
-# "unpatch" script for WebKit Open Source Project, used to remove patches.
-
-# Differences from invoking "patch -p0 -R":
-#
-# Handles added files (does a svn revert with additional logic to handle local changes).
-# Handles added directories (does a svn revert and a rmdir).
-# Handles removed files (does a svn revert with additional logic to handle local changes).
-# Handles removed directories (does a svn revert).
-# Paths from Index: lines are used rather than the paths on the patch lines, which
-# makes patches generated by "cvs diff" work (increasingly unimportant since we
-# use Subversion now).
-# ChangeLog patches use --fuzz=3 to prevent rejects, and the entry date is reset in
-# the patch before it is applied (svn-apply sets it when applying a patch).
-# Handles binary files (requires patches made by svn-create-patch).
-# Handles copied and moved files (requires patches made by svn-create-patch).
-# Handles git-diff patches (without binary changes) created at the top-level directory
-#
-# Missing features:
-#
-# Handle property changes.
-# Handle copied and moved directories (would require patches made by svn-create-patch).
-# Use version numbers in the patch file and do a 3-way merge.
-# When reversing an addition, check that the file matches what's being removed.
-# Notice a patch that's being unapplied at the "wrong level" and make it work anyway.
-# Do a dry run on the whole patch and don't do anything if part of the patch is
-# going to fail (probably too strict unless we exclude ChangeLog).
-# Handle git-diff patches with binary changes
-
-use strict;
-use warnings;
-
-use Cwd;
-use Digest::MD5;
-use Fcntl qw(:DEFAULT :seek);
-use File::Basename;
-use File::Spec;
-use File::Temp qw(tempfile);
-use Getopt::Long;
-
-use FindBin;
-use lib $FindBin::Bin;
-use VCSUtils;
-
-sub checksum($);
-sub patch($);
-sub revertDirectories();
-sub unapplyPatch($$;$);
-sub unsetChangeLogDate($$);
-
-my $force = 0;
-my $showHelp = 0;
-
-my $optionParseSuccess = GetOptions(
- "force!" => \$force,
- "help!" => \$showHelp
-);
-
-if (!$optionParseSuccess || $showHelp) {
- print STDERR basename($0) . " [-h|--help] [--force] patch1 [patch2 ...]\n";
- exit 1;
-}
-
-my $globalExitStatus = 0;
-
-my $repositoryRootPath = determineVCSRoot();
-
-my @copiedFiles;
-my %directoriesToCheck;
-
-# Need to use a typeglob to pass the file handle as a parameter,
-# otherwise get a bareword error.
-my @diffHashRefs = parsePatch(*ARGV);
-
-print "Parsed " . @diffHashRefs . " diffs from patch file(s).\n";
-
-my $preparedPatchHash = prepareParsedPatch($force, @diffHashRefs);
-
-my @copyDiffHashRefs = @{$preparedPatchHash->{copyDiffHashRefs}};
-my @nonCopyDiffHashRefs = @{$preparedPatchHash->{nonCopyDiffHashRefs}};
-
-for my $diffHashRef (@nonCopyDiffHashRefs) {
- patch($diffHashRef);
-}
-
-# Handle copied and moved files last since they may have had post-copy changes that have now been unapplied
-for my $diffHashRef (@copyDiffHashRefs) {
- patch($diffHashRef);
-}
-
-if (isSVN()) {
- revertDirectories();
-}
-
-exit $globalExitStatus;
-
-sub checksum($)
-{
- my $file = shift;
- open(FILE, $file) or die "Can't open '$file': $!";
- binmode(FILE);
- my $checksum = Digest::MD5->new->addfile(*FILE)->hexdigest();
- close(FILE);
- return $checksum;
-}
-
-# Args:
-# $diffHashRef: a diff hash reference of the type returned by parsePatch().
-sub patch($)
-{
- my ($diffHashRef) = @_;
-
- # Make sure $patch is initialized to some value. There is no
- # svnConvertedText when reversing an svn copy/move.
- my $patch = $diffHashRef->{svnConvertedText} || "";
-
- my $fullPath = $diffHashRef->{indexPath};
- my $isSvnBinary = $diffHashRef->{isBinary} && $diffHashRef->{isSvn};
-
- $directoriesToCheck{dirname($fullPath)} = 1;
-
- my $deletion = 0;
- my $addition = 0;
-
- $addition = 1 if ($diffHashRef->{isNew} || $diffHashRef->{copiedFromPath} || $patch =~ /\n@@ -0,0 .* @@/);
- $deletion = 1 if ($diffHashRef->{isDeletion} || $patch =~ /\n@@ .* \+0,0 @@/);
-
- if (!$addition && !$deletion && !$isSvnBinary) {
- # Standard patch, patch tool can handle this.
- if (basename($fullPath) eq "ChangeLog") {
- my $changeLogDotOrigExisted = -f "${fullPath}.orig";
- my $changeLogHash = fixChangeLogPatch($patch);
- unapplyPatch(unsetChangeLogDate($fullPath, $changeLogHash->{patch}), $fullPath, ["--fuzz=3"]);
- unlink("${fullPath}.orig") if (! $changeLogDotOrigExisted);
- } else {
- unapplyPatch($patch, $fullPath);
- }
- } else {
- # Either a deletion, an addition or a binary change.
-
- # FIXME: Add support for Git binary files.
- if ($isSvnBinary) {
- # Reverse binary change
- unlink($fullPath) if (-e $fullPath);
- system "svn", "revert", $fullPath;
- } elsif ($deletion) {
- # Reverse deletion
- rename($fullPath, "$fullPath.orig") if -e $fullPath;
-
- unapplyPatch($patch, $fullPath);
-
- # If we don't ask for the filehandle here, we always get a warning.
- my ($fh, $tempPath) = tempfile(basename($fullPath) . "-XXXXXXXX",
- DIR => dirname($fullPath), UNLINK => 1);
- close($fh);
-
- # Keep the version from the patch in case it's different from svn.
- rename($fullPath, $tempPath);
- system "svn", "revert", $fullPath;
- rename($tempPath, $fullPath);
-
- # This works around a bug in the svn client.
- # [Issue 1960] file modifications get lost due to FAT 2s time resolution
- # http://subversion.tigris.org/issues/show_bug.cgi?id=1960
- system "touch", $fullPath;
-
- # Remove $fullPath.orig if it is the same as $fullPath
- unlink("$fullPath.orig") if -e "$fullPath.orig" && checksum($fullPath) eq checksum("$fullPath.orig");
-
- # Show status if the file is modifed
- system "svn", "stat", $fullPath;
- } else {
- # Reverse addition
- #
- # FIXME: This should use the same logic as svn-apply's deletion
- # code. In particular, svn-apply's scmRemove() subroutine
- # should be used here.
- unapplyPatch($patch, $fullPath, ["--force"]) if $patch;
- unlink($fullPath) if -z $fullPath;
- system "svn", "revert", $fullPath;
- }
- }
-
- scmToggleExecutableBit($fullPath, -1 * $diffHashRef->{executableBitDelta}) if defined($diffHashRef->{executableBitDelta});
-}
-
-sub revertDirectories()
-{
- chdir $repositoryRootPath;
- my %checkedDirectories;
- foreach my $path (reverse sort keys %directoriesToCheck) {
- my @dirs = File::Spec->splitdir($path);
- while (scalar @dirs) {
- my $dir = File::Spec->catdir(@dirs);
- pop(@dirs);
- next if (exists $checkedDirectories{$dir});
- if (-d $dir) {
- my $svnOutput = svnStatus($dir);
- if ($svnOutput && $svnOutput =~ m#A\s+$dir\n#) {
- system "svn", "revert", $dir;
- rmdir $dir;
- }
- elsif ($svnOutput && $svnOutput =~ m#D\s+$dir\n#) {
- system "svn", "revert", $dir;
- }
- else {
- # Modification
- print $svnOutput if $svnOutput;
- }
- $checkedDirectories{$dir} = 1;
- }
- else {
- die "'$dir' is not a directory";
- }
- }
- }
-}
-
-# Args:
-# $patch: a patch string.
-# $pathRelativeToRoot: the path of the file to be patched, relative to the
-# repository root. This should normally be the path
-# found in the patch's "Index:" line.
-# $options: a reference to an array of options to pass to the patch command.
-# Do not include --reverse in this array.
-sub unapplyPatch($$;$)
-{
- my ($patch, $pathRelativeToRoot, $options) = @_;
-
- my $optionalArgs = {options => $options, ensureForce => $force, shouldReverse => 1};
-
- my $exitStatus = runPatchCommand($patch, $repositoryRootPath, $pathRelativeToRoot, $optionalArgs);
-
- if ($exitStatus) {
- $globalExitStatus = $exitStatus;
- }
-}
-
-sub unsetChangeLogDate($$)
-{
- my $fullPath = shift;
- my $patch = shift;
- my $newDate;
- sysopen(CHANGELOG, $fullPath, O_RDONLY) or die "Failed to open $fullPath: $!";
- sysseek(CHANGELOG, 0, SEEK_SET);
- my $byteCount = sysread(CHANGELOG, $newDate, 10);
- die "Failed reading $fullPath: $!" if !$byteCount || $byteCount != 10;
- close(CHANGELOG);
- $patch =~ s/(\n\+)\d{4}-[^-]{2}-[^-]{2}( )/$1$newDate$2/;
- return $patch;
-}
generated by cgit v1.1 at 2024-07-15 16:52:59 +0000