vendor/bundles/Symfony/Bundle/AsseticBundle/Command/DumpCommand.php
changeset 0 7f95f8617b0b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/bundles/Symfony/Bundle/AsseticBundle/Command/DumpCommand.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,210 @@
+<?php
+
+/*
+ * This file is part of the Symfony framework.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Symfony\Bundle\AsseticBundle\Command;
+
+use Assetic\Asset\AssetInterface;
+use Assetic\Factory\LazyAssetManager;
+use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Dumps assets to the filesystem.
+ *
+ * @author Kris Wallsmith <kris@symfony.com>
+ */
+class DumpCommand extends ContainerAwareCommand
+{
+    private $basePath;
+    private $verbose;
+    private $am;
+
+    protected function configure()
+    {
+        $this
+            ->setName('assetic:dump')
+            ->setDescription('Dumps all assets to the filesystem')
+            ->addArgument('write_to', InputArgument::OPTIONAL, 'Override the configured asset root')
+            ->addOption('watch', null, InputOption::VALUE_NONE, 'Check for changes every second, debug mode only')
+            ->addOption('force', null, InputOption::VALUE_NONE, 'Force an initial generation of all assets (used with --watch)')
+            ->addOption('period', null, InputOption::VALUE_REQUIRED, 'Set the polling period in seconds (used with --watch)', 1)
+        ;
+    }
+
+    protected function initialize(InputInterface $input, OutputInterface $output)
+    {
+        parent::initialize($input, $output);
+
+        $this->basePath = $input->getArgument('write_to') ?: $this->getContainer()->getParameter('assetic.write_to');
+        $this->verbose = $input->getOption('verbose');
+        $this->am = $this->getContainer()->get('assetic.asset_manager');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $output->writeln(sprintf('Dumping all <comment>%s</comment> assets.', $input->getOption('env')));
+        $output->writeln(sprintf('Debug mode is <comment>%s</comment>.', $input->getOption('no-debug') ? 'off' : 'on'));
+        $output->writeln('');
+
+        if (!$input->getOption('watch')) {
+            foreach ($this->am->getNames() as $name) {
+                $this->dumpAsset($name, $output);
+            }
+
+            return;
+        }
+
+        if (!$this->am->isDebug()) {
+            throw new \RuntimeException('The --watch option is only available in debug mode.');
+        }
+
+        $this->watch($input, $output);
+    }
+
+    /**
+     * Watches a asset manager for changes.
+     *
+     * This method includes an infinite loop the continuously polls the asset
+     * manager for changes.
+     *
+     * @param InputInterface  $input  The command input
+     * @param OutputInterface $output The command output
+     */
+    private function watch(InputInterface $input, OutputInterface $output)
+    {
+        $refl = new \ReflectionClass('Assetic\\AssetManager');
+        $prop = $refl->getProperty('assets');
+        $prop->setAccessible(true);
+
+        $cache = sys_get_temp_dir().'/assetic_watch_'.substr(sha1($this->basePath), 0, 7);
+        if ($input->getOption('force') || !file_exists($cache)) {
+            $previously = array();
+        } else {
+            $previously = unserialize(file_get_contents($cache));
+        }
+
+        $error = '';
+        while (true) {
+            try {
+                foreach ($this->am->getNames() as $name) {
+                    if ($this->checkAsset($name, $previously)) {
+                        $this->dumpAsset($name, $output);
+                    }
+                }
+
+                // reset the asset manager
+                $prop->setValue($this->am, array());
+                $this->am->load();
+
+                file_put_contents($cache, serialize($previously));
+                $error = '';
+
+                sleep($input->getOption('period'));
+            } catch (\Exception $e) {
+                if ($error != $msg = $e->getMessage()) {
+                    $output->writeln('<error>[error]</error> '.$msg);
+                    $error = $msg;
+                }
+            }
+        }
+    }
+
+    /**
+     * Checks if an asset should be dumped.
+     *
+     * @param string $name        The asset name
+     * @param array  &$previously An array of previous visits
+     *
+     * @return Boolean Whether the asset should be dumped
+     */
+    private function checkAsset($name, array &$previously)
+    {
+        $formula = $this->am->hasFormula($name) ? serialize($this->am->getFormula($name)) : null;
+        $asset = $this->am->get($name);
+        $mtime = $asset->getLastModified();
+
+        if (isset($previously[$name])) {
+            $changed = $previously[$name]['mtime'] != $mtime || $previously[$name]['formula'] != $formula;
+        } else {
+            $changed = true;
+        }
+
+        $previously[$name] = array('mtime' => $mtime, 'formula' => $formula);
+
+        return $changed;
+    }
+
+    /**
+     * Writes an asset.
+     *
+     * If the application or asset is in debug mode, each leaf asset will be
+     * dumped as well.
+     *
+     * @param string          $name   An asset name
+     * @param OutputInterface $output The command output
+     */
+    private function dumpAsset($name, OutputInterface $output)
+    {
+        $asset = $this->am->get($name);
+        $formula = $this->am->getFormula($name);
+
+        // start by dumping the main asset
+        $this->doDump($asset, $output);
+
+        // dump each leaf if debug
+        if (isset($formula[2]['debug']) ? $formula[2]['debug'] : $this->am->isDebug()) {
+            foreach ($asset as $leaf) {
+                $this->doDump($leaf, $output);
+            }
+        }
+    }
+
+    /**
+     * Performs the asset dump.
+     *
+     * @param AssetInterface  $asset  An asset
+     * @param OutputInterface $output The command output
+     *
+     * @throws RuntimeException If there is a problem writing the asset
+     */
+    private function doDump(AssetInterface $asset, OutputInterface $output)
+    {
+        $target = rtrim($this->basePath, '/').'/'.str_replace('_controller/', '', $asset->getTargetPath());
+        if (!is_dir($dir = dirname($target))) {
+            $output->writeln('<info>[dir+]</info>  '.$dir);
+            if (false === @mkdir($dir, 0777, true)) {
+                throw new \RuntimeException('Unable to create directory '.$dir);
+            }
+        }
+
+        $output->writeln('<info>[file+]</info> '.$target);
+        if ($this->verbose) {
+            if ($asset instanceof \Traversable) {
+                foreach ($asset as $leaf) {
+                    $root = $leaf->getSourceRoot();
+                    $path = $leaf->getSourcePath();
+                    $output->writeln(sprintf('        <comment>%s/%s</comment>', $root ?: '[unknown root]', $path ?: '[unknown path]'));
+                }
+            } else {
+                $root = $asset->getSourceRoot();
+                $path = $asset->getSourcePath();
+                $output->writeln(sprintf('        <comment>%s/%s</comment>', $root ?: '[unknown root]', $path ?: '[unknown path]'));
+            }
+        }
+
+        if (false === @file_put_contents($target, $asset->dump())) {
+            throw new \RuntimeException('Unable to write file '.$target);
+        }
+    }
+}