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<?php
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/**
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* Patches a file by applying a 'diff' file to it
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*
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* Requires "patch" to be on the execution path.
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*
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* Based on Apache Ant PatchTask:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* Patches a file by applying a 'diff' file to it
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*
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* Requires "patch" to be on the execution path.
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*
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* @package phing.tasks.ext
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*/
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class PatchTask extends Task
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{
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private static $PATCH = 'patch';
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/**
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* File to be patched
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*
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* @var PhingFile
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*/
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private $originalFile;
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/**
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* @var PhingFile $directory
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*/
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private $directory;
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/**
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* Halt on error return value from patch invocation.
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*
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* @var bool
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*/
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private $failOnError = false;
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/**
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* @var Commandline $cmd
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*/
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private $cmd;
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/**
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* @var bool $havePatchFile
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*/
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private $havePatchFile = false;
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public function __construct()
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{
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$this->cmd = new Commandline();
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parent::__construct();
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}
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/**
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* The file containing the diff output
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*
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* Required.
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*
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* @param PhingFile $file File containing the diff output
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* @return void
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* @throws BuildException if $file not exists
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*/
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public function setPatchFile(PhingFile $file)
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{
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1
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if (!$file->exists()) {
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throw new BuildException('patchfile ' . $file . " doesn't exist", $this->getLocation());
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}
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$this->cmd->createArgument()->setValue('-i');
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$this->cmd->createArgument()->setFile($file);
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$this->havePatchFile = true;
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}
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/**
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* flag to create backups; optional, default=false
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*
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* @param bool $backups if true create backups
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*/
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0
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public function setBackups($backups)
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{
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if ($backups) {
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$this->cmd->createArgument()->setValue('-b');
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}
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}
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/**
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* flag to ignore whitespace differences; default=false
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*
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* @param bool $ignore if true ignore whitespace differences
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*/
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public function setIgnorewhitespace($ignore)
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{
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if ($ignore) {
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$this->cmd->createArgument()->setValue('-l');
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}
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}
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/**
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* The file to patch
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*
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* Optional if it can be inferred from the diff file.
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*
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* @param PhingFile $file File to patch
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* @return void
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*/
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public function setOriginalFile(PhingFile $file)
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{
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$this->originalFile = $file;
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}
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/**
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* The name of a file to send the output to, instead of patching
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* the file(s) in place
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*
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* Optional.
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*
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* @param PhingFile $file File to send the output to
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* @return void
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*/
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public function setDestFile(PhingFile $file)
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{
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$this->cmd->createArgument()->setValue('-o');
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$this->cmd->createArgument()->setFile($file);
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}
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/**
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* Strip the smallest prefix containing <i>num</i> leading slashes
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* from filenames.
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*
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* patch's <i>--strip</i> option.
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*
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* @param int $num number of lines to strip
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* @return void
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* @throws BuildException if num is < 0, or other errors
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*/
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public function setStrip($num)
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{
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if ($num < 0) {
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throw new BuildException('strip has to be >= 0');
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}
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$this->cmd->createArgument()->setValue("--strip $num");
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}
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/**
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* Work silently unless an error occurs
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*
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* Optional, default - false
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*
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* @param bool $flag If true suppress set the -s option on the patch command
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* @return void
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*/
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public function setQuiet($flag)
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{
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if ($flag) {
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$this->cmd->createArgument()->setValue('-s');
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}
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}
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/**
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* Assume patch was created with old and new files swapped
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*
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* Optional, default - false
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*
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* @param bool $flag If true set the -R option on the patch command
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* @return void
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*/
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public function setReverse($flag)
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{
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if ($flag) {
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$this->cmd->createArgument('-R');
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}
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}
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/**
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* The directory to run the patch command in
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*
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* Defaults to the project's base directory.
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*
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* @param PhingFile $directory Directory to run the patch command in
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* @return void
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*/
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public function setDir(PhingFile $directory)
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{
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$this->directory = $directory;
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}
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/**
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* Ignore patches that seem to be reversed or already applied
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*
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* @param bool $flag If true set the -N (--forward) option
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* @return void
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*/
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public function setForward($flag)
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{
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if ($flag) {
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$this->cmd->createArgument()->setValue('-N');
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}
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}
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/**
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* Set the maximum fuzz factor
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*
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* Defaults to 0
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*
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* @param string $value Value of a fuzz factor
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* @return void
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*/
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public function setFuzz($value)
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{
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$this->cmd->createArgument()->setValue("-F $value");
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}
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/**
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* If true, stop the build process if the patch command
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* exits with an error status.
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*
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* The default is "false"
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*
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* @param bool $value "true" if it should halt, otherwise "false"
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* @return void
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*/
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public function setFailOnError($value)
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{
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$this->failOnError = $value;
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}
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/**
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* @param string $value
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*/
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0
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public function setHaltOnFailure(string $value)
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{
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$this->failOnError = $value;
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}
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/**
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* Main task method
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*
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* @return void
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* @throws BuildException when it all goes a bit pear shaped
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*/
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1
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public function main()
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{
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1
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if (!$this->havePatchFile) {
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0
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throw new BuildException('patchfile argument is required', $this->getLocation());
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}
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1
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$toExecute = $this->cmd;
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1
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$toExecute->setExecutable(self::$PATCH);
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1
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if ($this->originalFile !== null) {
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1
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$toExecute->createArgument()->setFile($this->originalFile);
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}
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1
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$exe = new ExecTask();
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1
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$exe->setCommand(implode(' ', $toExecute->getCommandline()));
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1
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$exe->setLevel('info');
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1
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$exe->setExecutable($toExecute->getExecutable());
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try {
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1
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if ($this->directory === null) {
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1
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$exe->setDir($this->getProject()->getBasedir());
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} else {
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0
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if (!$this->directory->isDirectory()) {
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0
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throw new BuildException($this->directory . ' is not a directory.', $this->getLocation());
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}
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$exe->setDir($this->directory);
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}
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1
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$this->log($toExecute->describeCommand(), Project::MSG_VERBOSE);
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1
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$returnCode = $exe->main();
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1
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if ($exe->isFailure($returnCode)) {
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0
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$msg = "'" . self::$PATCH . "' failed with exit code " . $returnCode;
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0
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if ($this->failOnError) {
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0
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throw new BuildException($msg);
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}
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0
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$this->log($msg, Project::MSG_ERR);
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}
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0
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} catch (IOException $e) {
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298
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0
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if ($this->failOnError) {
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0
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throw new BuildException($e, $this->getLocation());
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}
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0
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$this->log($e->getMessage(), Project::MSG_ERR);
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}
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}
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}
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