108 lines
2.8 KiB
PHP
108 lines
2.8 KiB
PHP
<?php
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/*
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* This file is part of the Assetic package, an OpenSky project.
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*
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* (c) 2010-2012 OpenSky Project Inc
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Assetic;
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use Assetic\Util\PathUtils;
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use Assetic\Asset\AssetInterface;
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/**
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* Writes assets to the filesystem.
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*
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* @author Kris Wallsmith <kris.wallsmith@gmail.com>
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* @author Johannes M. Schmitt <schmittjoh@gmail.com>
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*/
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class AssetWriter
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{
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private $dir;
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private $varValues;
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/**
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* Constructor.
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*
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* @param string $dir The base web directory
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*/
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public function __construct($dir, array $varValues = array())
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{
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foreach ($varValues as $var => $values) {
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foreach ($values as $value) {
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if (!is_string($value)) {
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throw new \InvalidArgumentException(sprintf('All variable values must be strings, but got %s for variable "%s".', json_encode($value), $var));
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}
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}
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}
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$this->dir = $dir;
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$this->varValues = $varValues;
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}
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public function writeManagerAssets(AssetManager $am)
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{
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foreach ($am->getNames() as $name) {
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$this->writeAsset($am->get($name));
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}
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}
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public function writeAsset(AssetInterface $asset)
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{
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foreach ($this->getCombinations($asset->getVars()) as $combination) {
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$asset->setValues($combination);
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static::write($this->dir.'/'.PathUtils::resolvePath(
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$asset->getTargetPath(), $asset->getVars(), $asset->getValues()),
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$asset->dump());
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}
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}
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private function getCombinations(array $vars)
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{
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if (!$vars) {
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return array(array());
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}
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$combinations = array();
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$nbValues = array();
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foreach ($this->varValues as $var => $values) {
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if (!in_array($var, $vars, true)) {
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continue;
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}
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$nbValues[$var] = count($values);
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}
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for ($i=array_product($nbValues),$c=$i*2; $i<$c; $i++) {
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$k = $i;
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$combination = array();
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foreach ($vars as $var) {
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$combination[$var] = $this->varValues[$var][$k % $nbValues[$var]];
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$k = intval($k/$nbValues[$var]);
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}
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$combinations[] = $combination;
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}
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return $combinations;
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}
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static protected function write($path, $contents)
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{
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if (!is_dir($dir = dirname($path)) && false === @mkdir($dir, 0777, true)) {
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throw new \RuntimeException('Unable to create directory '.$dir);
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}
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if (false === @file_put_contents($path, $contents)) {
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throw new \RuntimeException('Unable to write file '.$path);
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}
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}
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}
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