mirror of
https://github.com/joomla-extensions/patchtester.git
synced 2024-11-14 01:04:07 +00:00
322 lines
7.9 KiB
PHP
322 lines
7.9 KiB
PHP
<?php
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/**
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* Patch testing component for the Joomla! CMS
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*
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* @copyright Copyright (C) 2011 - 2012 Ian MacLennan, Copyright (C) 2013 - 2015 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later
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*/
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namespace PatchTester\Model;
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use Joomla\Registry\Registry;
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use PatchTester\Helper;
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/**
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* Methods supporting pull requests.
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*
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* @since 2.0
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*/
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class PullModel extends \JModelBase
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{
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/**
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* Array containing top level non-production folders
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*
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* @var array
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* @since 2.0
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*/
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protected $nonProductionFolders = array('build', 'docs', 'installation', 'tests');
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/**
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* Method to parse a patch and extract the affected files
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*
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* @param string $patch Patch file to parse
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*
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* @return array Array of files within a patch
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*
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* @since 2.0
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*/
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protected function parsePatch($patch)
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{
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$state = 0;
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$files = array();
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$lines = explode("\n", $patch);
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foreach ($lines AS $line)
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{
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switch ($state)
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{
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case 0:
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if (strpos($line, 'diff --git') === 0)
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{
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$state = 1;
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}
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$file = new \stdClass;
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$file->action = 'modified';
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break;
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case 1:
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if (strpos($line, 'index') === 0)
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{
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$file->index = substr($line, 6);
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}
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if (strpos($line, '---') === 0)
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{
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$file->old = substr($line, 6);
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}
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if (strpos($line, '+++') === 0)
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{
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$file->new = substr($line, 6);
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}
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if (strpos($line, 'new file mode') === 0)
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{
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$file->action = 'added';
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}
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if (strpos($line, 'deleted file mode') === 0)
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{
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$file->action = 'deleted';
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}
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if (strpos($line, '@@') === 0)
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{
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$state = 0;
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/*
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* Check if the patch tester is running in a production environment
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* If so, do not patch certain files as errors will be thrown
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*/
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if (!file_exists(JPATH_ROOT . '/installation/CHANGELOG'))
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{
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$filePath = explode('/', $file->new);
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if (in_array($filePath[0], $this->nonProductionFolders))
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{
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continue;
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}
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}
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$files[] = $file;
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}
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break;
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}
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}
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return $files;
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}
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/**
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* Patches the code with the supplied pull request
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*
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* @param integer $id ID of the pull request to apply
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*
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* @return boolean
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*
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* @since 2.0
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* @throws \RuntimeException
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*/
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public function apply($id)
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{
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// Get the Github object
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$github = Helper::initializeGithub();
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$rate = $github->authorization->getRateLimit();
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// If over the API limit, we can't build this list
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if ($rate->resources->core->remaining == 0)
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{
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throw new \RuntimeException(
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\JText::sprintf('COM_PATCHTESTER_API_LIMIT_LIST', \JFactory::getDate($rate->resources->core->reset))
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);
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}
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$pull = $github->pulls->get($this->getState()->get('github_user'), $this->getState()->get('github_repo'), $id);
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if (is_null($pull->head->repo))
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{
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throw new \RuntimeException(\JText::_('COM_PATCHTESTER_REPO_IS_GONE'));
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}
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// Set up the JHttp object
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$options = new Registry;
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$options->set('userAgent', 'JPatchTester/2.0');
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$options->set('timeout', 120);
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// Make sure we can use the cURL driver
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$driver = \JHttpFactory::getAvailableDriver($options, 'curl');
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if (!($driver instanceof \JHttpTransportCurl))
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{
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throw new \RuntimeException('Cannot use the PHP cURL adapter in this environment, cannot use patchtester', 500);
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}
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$transport = new \JHttp($options, $driver);
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$patch = $transport->get($pull->diff_url)->body;
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$files = $this->parsePatch($patch);
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if (!$files)
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{
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// TODO - Should be a better way to enqueue messages without needing the application...
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\JFactory::getApplication()->enqueueMessage(JText::_('COM_PATCHTESTER_NO_FILES_TO_PATCH', 'message'));
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return true;
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}
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foreach ($files as $file)
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{
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if ($file->action == 'deleted' && !file_exists(JPATH_ROOT . '/' . $file->old))
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{
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throw new \RuntimeException(sprintf(\JText::_('COM_PATCHTESTER_FILE_DELETED_DOES_NOT_EXIST_S'), $file->old));
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}
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if ($file->action == 'added' || $file->action == 'modified')
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{
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// If the backup file already exists, we can't apply the patch
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if (file_exists(JPATH_COMPONENT . '/backups/' . md5($file->new) . '.txt'))
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{
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throw new \RuntimeException(sprintf(\JText::_('COM_PATCHTESTER_CONFLICT_S'), $file->new));
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}
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if ($file->action == 'modified' && !file_exists(JPATH_ROOT . '/' . $file->old))
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{
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throw new \RuntimeException(sprintf(\JText::_('COM_PATCHTESTER_FILE_MODIFIED_DOES_NOT_EXIST_S'), $file->old));
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}
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$url = 'https://raw.github.com/' . urlencode($pull->head->user->login) . '/' . urlencode($pull->head->repo->name) . '/' . urlencode($pull->head->ref) . '/' . $file->new;
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$file->body = $transport->get($url)->body;
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}
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}
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jimport('joomla.filesystem.file');
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// At this point, we have ensured that we have all the new files and there are no conflicts
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foreach ($files as $file)
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{
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// We only create a backup if the file already exists
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if ($file->action == 'deleted' || (file_exists(JPATH_ROOT . '/' . $file->new) && $file->action == 'modified'))
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{
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if (!\JFile::copy(\JPath::clean(JPATH_ROOT . '/' . $file->old), JPATH_COMPONENT . '/backups/' . md5($file->old) . '.txt'))
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{
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throw new \RuntimeException(
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sprintf('Can not copy file %s to %s', JPATH_ROOT . '/' . $file->old, JPATH_COMPONENT . '/backups/' . md5($file->old) . '.txt')
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);
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}
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}
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switch ($file->action)
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{
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case 'modified':
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case 'added':
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if (!\JFile::write(\JPath::clean(JPATH_ROOT . '/' . $file->new), $file->body))
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{
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throw new \RuntimeException(sprintf('Can not write the file: %s', JPATH_ROOT . '/' . $file->new));
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}
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break;
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case 'deleted':
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if (!\JFile::delete(\JPath::clean(JPATH_ROOT . '/' . $file->old)))
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{
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throw new \RuntimeException(sprintf('Can not delete the file: %s', JPATH_ROOT . '/' . $file->old));
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}
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break;
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}
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}
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$table = \JTable::getInstance('TestsTable', '\\PatchTester\\Table\\');
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$table->pull_id = $pull->number;
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$table->data = json_encode($files);
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$table->patched_by = \JFactory::getUser()->id;
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$table->applied = 1;
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$table->applied_version = JVERSION;
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if (!$table->store())
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{
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throw new \RuntimeException($table->getError());
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}
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return true;
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}
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/**
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* Reverts the specified pull request
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*
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* @param integer $id ID of the pull request to Reverts
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*
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* @return boolean
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*
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* @since 2.0
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* @throws \RuntimeException
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*/
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public function revert($id)
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{
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$table = \JTable::getInstance('TestsTable', '\\PatchTester\\Table\\');
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$table->load($id);
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// We don't want to restore files from an older version
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if ($table->applied_version != JVERSION)
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{
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$table->delete();
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return $this;
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}
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$files = json_decode($table->data);
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if (!$files)
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{
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throw new \RuntimeException(sprintf(JText::_('%s - Error retrieving table data (%s)'), __METHOD__, htmlentities($table->data)));
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}
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jimport('joomla.filesystem.file');
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foreach ($files as $file)
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{
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switch ($file->action)
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{
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case 'deleted':
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case 'modified':
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if (!\JFile::copy(JPATH_COMPONENT . '/backups/' . md5($file->old) . '.txt', JPATH_ROOT . '/' . $file->old))
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{
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throw new \RuntimeException(
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sprintf(
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\JText::_('Can not copy file %s to %s'),
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JPATH_COMPONENT . '/backups/' . md5($file->old) . '.txt',
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JPATH_ROOT . '/' . $file->old
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)
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);
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}
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if (!\JFile::delete(JPATH_COMPONENT . '/backups/' . md5($file->old) . '.txt'))
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{
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throw new \RuntimeException(sprintf(\JText::_('Can not delete the file: %s'), JPATH_COMPONENT . '/backups/' . md5($file->old) . '.txt'));
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}
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break;
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case 'added':
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if (!\JFile::delete(\JPath::clean(JPATH_ROOT . '/' . $file->new)))
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{
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throw new \RuntimeException(sprintf(\JText::_('Can not delete the file: %s'), JPATH_ROOT . '/' . $file->new));
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}
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break;
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}
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}
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$table->delete();
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return true;
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}
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}
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