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<?php
/**
* Copyright (c) 2007-2011 bitExpert AG
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
require_once 'phing/tasks/ext/liquibase/AbstractLiquibaseTask.php';
/**
* Task to create the diff between two databases. Will output the changes needed
* to convert the reference database to the database.
*
* @author Stephan Hochdoerfer <S.Hochdoerfer@bitExpert.de>
* @version $Id$
* @since 2.4.10
* @package phing.tasks.ext.liquibase
*/
class LiquibaseDiffTask extends AbstractLiquibaseTask
{
protected $referenceUsername;
protected $referencePassword;
protected $referenceUrl;
/**
* Sets the username to connect to the reference database.
*
* @param string the username
*/
public function setReferenceUsername($username)
{
$this->referenceUsername = $username;
}
/**
* Sets the password to connect to the refernce database.
*
* @param string the password
*/
public function setReferencePassword($password)
{
$this->referencePassword = $password;
}
/**
* Sets the url to connect to the reference database in jdbc style, e.g.
* <code>
* jdbc:postgresql://psqlhost/myrefdatabase
* </code>
*
* @param string jdbc connection string
*/
public function setReferenceUrl($url)
{
$this->referenceUrl = $url;
}
/**
* @see AbstractTask::checkParams()
*/
protected function checkParams()
{
parent::checkParams();
if(null === $this->referenceUsername)
{
throw new BuildException('Please provide a username for the reference database acccess!');
}
if(null === $this->referencePassword)
{
throw new BuildException('Please provide a password for the reference database acccess!');
}
if(null === $this->referenceUrl)
{
throw new BuildException('Please provide a url for the reference database acccess!');
}
}
/**
* @see Task::main()
*/
public function main()
{
$this->checkParams();
$refparams = sprintf(
'--referenceUsername=%s --referencePassword=%s --referenceUrl=%s',
escapeshellarg($this->referenceUsername),
escapeshellarg($this->referencePassword),
escapeshellarg($this->referenceUrl)
);
// save main changelog file
$changelogFile = $this->changeLogFile;
// set the name of the new generated changelog file
$this->setChangeLogFile(dirname($changelogFile).'/diffs/'.date('YmdHis').'.xml');
if(!is_dir(dirname($changelogFile).'/diffs/'))
{
mkdir(dirname($changelogFile).'/diffs/', 0777, true);
}
$this->execute('diffChangeLog', $refparams);
$xmlFile = new DOMDocument();
$xmlFile->load($changelogFile);
// create the new node
$rootNode = $xmlFile->getElementsByTagName('databaseChangeLog')->item(0);
$includeNode = $rootNode->appendChild($xmlFile->createElement('include'));
// set the attributes for the new node
$includeNode->setAttribute('file', str_replace(dirname($changelogFile).'/', '', $this->changeLogFile));
$includeNode->setAttribute('relativeToChangelogFile', 'true');
file_put_contents($changelogFile, $xmlFile->saveXML());
$this->setChangeLogFile($changelogFile);
$this->execute('markNextChangeSetRan');
}
}
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