Compiler.php

<?php
/*
 *  $Id$
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
 * OWNER OR 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.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the LGPL. For more information, see
 * <http://www.phpdoctrine.com>.
 */
/**
 * Doctrine_Compiler
 * This class can be used for compiling the entire Doctrine framework into a single file
 *
 * @package     Doctrine
 * @author      Konsta Vesterinen <kvesteri@cc.hut.fi>
 * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @category    Object Relational Mapping
 * @link        www.phpdoctrine.com
 * @since       1.0
 * @version     $Revision$
 */
class Doctrine_Compiler {
    /**
     * @var array $classes          an array containing all runtime classes of Doctrine framework
     */
    private static $classes = array(
                         'Access',
                         'Adapter_Exception',
                         'Adapter_Interface',
                         'Doctrine',
                         'Configurable',
                         'Collection',
                         'Collection_Immediate',
                         'Connection',
                         'Connection_Exception',
                         'Connection_UnitOfWork',
                         'Connection_Transaction',
                         'DB',
                         'DB_Exception',
                         'DB_EventListener',
                         'DB_Event',
                         'DB_EventListener_Chain',
                         'DB_EventListener_Interface',
                         'DB_Profiler',
                         'DB_Statement',
                         'Exception',
                         'EventListener_Interface',
                         'EventListener',
                         'EventListener_Empty',
                         'EventListener_Chain',
                         'Hydrate',
                         'Identifier',
                         'Locking_Exception',
                         'Manager',
                         'Null',
                         'Overloadable',
                         'Query',
                         'Query_Part',
                         'Query_From',
                         'Query_Orderby',
                         'Query_Groupby',
                         'Query_Condition',
                         'Query_Where',
                         'Query_Having',
                         'Query_Exception',
                         'Query_Set',
                         'RawSql',
                         'RawSql_Exception',
                         'Record',
                         'Record_Exception',
                         'Record_Iterator',
                         'Relation',
                         'Relation_ForeignKey',
                         'Relation_LocalKey',
                         'Relation_Association',
                         'Relation_Association_Self',
                         'Table',
                         'Table_Exception',
                         'Validator',
                         'Validator_Exception',
                         'Validator_Notnull',
                         'Validator_Nospace',
                         'Validator_Range',
                         'Validator_Regexp',
                         'Validator_Country',
                         'Validator_Notblank',
                         'Validator_Creditcard',
                         'Validator_Date',
                         'Validator_Ip',
                         'Validator_Unique',
                         'Validator_Usstate',
                         'Validator_Htmlcolor',
                         'Validator_Email',
                         'View',
                         'View_Exception');

    /**
     * getRuntimeClasses
     * returns an array containing all runtime classes of Doctrine framework
     *
     * @return array
     */
    public static function getRuntimeClasses() {
        return self::$classes;
    }
    /**
     * method for making a single file of most used doctrine runtime components
     * including the compiled file instead of multiple files (in worst
     * cases dozens of files) can improve performance by an order of magnitude
     *
     * @throws Doctrine_Compiler_Exception      if something went wrong during the compile operation
     * @return void
     */
    public static function compile($target = null) {
        $path = Doctrine::getPath();

        $classes = self::$classes;

        $ret     = array();

        foreach($classes as $class) {
            if($class !== 'Doctrine')
                $class = 'Doctrine_'.$class;

            $file  = $path.DIRECTORY_SEPARATOR.str_replace("_",DIRECTORY_SEPARATOR,$class).".php";
            
            echo "Adding $file" . PHP_EOL;

            if( ! file_exists($file))
                throw new Doctrine_Compiler_Exception("Couldn't compile $file. File $file does not exists.");

            Doctrine::autoload($class);
            $refl  = new ReflectionClass ( $class );
            $lines = file( $file );

            $start = $refl -> getStartLine() - 1;
            $end   = $refl -> getEndLine();

            $ret = array_merge($ret,
                               array_slice($lines,
                               $start,
                              ($end - $start)));

        }

        if ($target == null) {
            $target = $path.DIRECTORY_SEPARATOR.'Doctrine.compiled.php';
        }            

        // first write the 'compiled' data to a text file, so
        // that we can use php_strip_whitespace (which only works on files)
        $fp = @fopen($target, 'w');
        
        if ($fp === false)
            throw new Doctrine_Compiler_Exception("Couldn't write compiled data. Failed to open $target");
            
        fwrite($fp, "<?php".
                    " class InvalidKeyException extends Exception { }".
                    implode('', $ret)
              );
        fclose($fp);

        $stripped = php_strip_whitespace($target);
        $fp = @fopen($target, 'w');
        if ($fp === false)
            throw new Doctrine_Compiler_Exception("Couldn't write compiled data. Failed to open $file");
        fwrite($fp, $stripped);
        fclose($fp);
    }
}