add Twig & refactor poche

inc/Twig/Extensions/Gettext/Extractor.php

@@ -0,0 +1,95 @@
+<?php
+
+/**
+ * This file is part of the Twig Gettext utility.
+ *
+ *  (c) Саша Стаменковић <umpirsky@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Twig\Gettext;
+
+use Symfony\Component\Filesystem\Filesystem;
+
+/**
+ * Extracts translations from twig templates.
+ *
+ * @author Саша Стаменковић <umpirsky@gmail.com>
+ */
+class Extractor
+{
+    /**
+     * @var \Twig_Environment
+     */
+    protected $environment;
+
+    /**
+     * Template cached file names.
+     *
+     * @var string[]
+     */
+    protected $templates;
+
+    /**
+     * Gettext parameters.
+     *
+     * @var string[]
+     */
+    protected $parameters;
+
+    public function __construct(\Twig_Environment $environment)
+    {
+        $this->environment = $environment;
+        $this->reset();
+    }
+
+    protected function reset()
+    {
+        $this->templates = array();
+        $this->parameters = array();
+    }
+
+    public function addTemplate($path)
+    {
+        $this->environment->loadTemplate($path);
+        $this->templates[] = $this->environment->getCacheFilename($path);
+    }
+
+    public function addGettextParameter($parameter)
+    {
+        $this->parameters[] = $parameter;
+    }
+
+    public function setGettextParameters(array $parameters)
+    {
+        $this->parameters = $parameters;
+    }
+
+    public function extract()
+    {
+        $command = 'xgettext';
+        $command .= ' '.join(' ', $this->parameters);
+        $command .= ' '.join(' ', $this->templates);
+
+        $error = 0;
+        $output = system($command, $error);
+        if (0 !== $error) {
+            throw new \RuntimeException(sprintf(
+                'Gettext command "%s" failed with error code %s and output: %s',
+                $command,
+                $error,
+                $output
+            ));
+        }
+
+        $this->reset();
+    }
+
+    public function __destruct()
+    {
+        $filesystem = new Filesystem();
+        $filesystem->remove($this->environment->getCache());
+    }
+}

inc/Twig/Extensions/Gettext/Loader/Filesystem.php

@@ -0,0 +1,58 @@
+<?php
+
+/**
+ * This file is part of the Twig Gettext utility.
+ *
+ *  (c) Саша Стаменковић <umpirsky@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Twig\Gettext\Loader;
+
+/**
+ * Loads template from the filesystem.
+ *
+ * @author Саша Стаменковић <umpirsky@gmail.com>
+ */
+class Filesystem extends \Twig_Loader_Filesystem
+{
+    /**
+     * Hacked find template to allow loading templates by absolute path.
+     *
+     * @param string $name template name or absolute path
+     */
+    protected function findTemplate($name)
+    {
+        // normalize name
+        $name = preg_replace('#/{2,}#', '/', strtr($name, '\\', '/'));
+
+        if (isset($this->cache[$name])) {
+            return $this->cache[$name];
+        }
+
+        $this->validateName($name);
+
+        $namespace = '__main__';
+        if (isset($name[0]) && '@' == $name[0]) {
+            if (false === $pos = strpos($name, '/')) {
+                throw new \InvalidArgumentException(sprintf('Malformed namespaced template name "%s" (expecting "@namespace/template_name").', $name));
+            }
+
+            $namespace = substr($name, 1, $pos - 1);
+
+            $name = substr($name, $pos + 1);
+        }
+
+        if (!isset($this->paths[$namespace])) {
+            throw new \Twig_Error_Loader(sprintf('There are no registered paths for namespace "%s".', $namespace));
+        }
+
+        if (is_file($name)) {
+            return $this->cache[$name] = $name;
+        }
+
+        return __DIR__.'/../Test/Fixtures/twig/empty.twig';
+    }
+}

inc/Twig/Extensions/Gettext/Routing/Generator/UrlGenerator.php

@@ -0,0 +1,39 @@
+<?php
+
+/**
+ * This file is part of the Twig Gettext utility.
+ *
+ *  (c) Саша Стаменковић <umpirsky@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Twig\Gettext\Routing\Generator;
+
+use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
+use Symfony\Component\Routing\RequestContext;
+
+/**
+ * Dummy url generator.
+ *
+ * @author Саша Стаменковић <umpirsky@gmail.com>
+ */
+class UrlGenerator implements UrlGeneratorInterface
+{
+    protected $context;
+
+    public function generate($name, $parameters = array(), $absolute = false)
+    {
+    }
+
+    public function getContext()
+    {
+        return $this->context;
+    }
+
+    public function setContext(RequestContext $context)
+    {
+        $this->context = $context;
+    }
+}

inc/Twig/Extensions/Gettext/Test/ExtractorTest.php

@@ -0,0 +1,123 @@
+<?php
+
+/**
+ * This file is part of the Twig Gettext utility.
+ *
+ *  (c) Саша Стаменковић <umpirsky@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Twig\Gettext\Test;
+
+use Twig\Gettext\Extractor;
+use Twig\Gettext\Loader\Filesystem;
+use Symfony\Component\Translation\Loader\PoFileLoader;
+
+/**
+ * @author Саша Стаменковић <umpirsky@gmail.com>
+ */
+class ExtractorTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var \Twig_Environment
+     */
+    protected $twig;
+
+    /**
+     * @var PoFileLoader
+     */
+    protected $loader;
+
+    protected function setUp()
+    {
+        $this->twig = new \Twig_Environment(new Filesystem('/'), array(
+            'cache'       => '/tmp/cache/'.uniqid(),
+            'auto_reload' => true
+        ));
+        $this->twig->addExtension(new \Twig_Extensions_Extension_I18n());
+
+        $this->loader = new PoFileLoader();
+    }
+
+    /**
+     * @dataProvider testExtractDataProvider
+     */
+    public function testExtract(array $templates, array $parameters, array $messages)
+    {
+        $extractor = new Extractor($this->twig);
+
+        foreach ($templates as $template) {
+            $extractor->addTemplate($template);
+        }
+        foreach ($parameters as $parameter) {
+            $extractor->addGettextParameter($parameter);
+        }
+
+        $extractor->extract();
+
+        $catalog = $this->loader->load($this->getPotFile(), null);
+
+        foreach ($messages as $message) {
+            $this->assertTrue(
+                $catalog->has($message),
+                sprintf('Message "%s" not found in catalog.', $message)
+            );
+        }
+    }
+
+    public function testExtractDataProvider()
+    {
+        return array(
+            array(
+                array(
+                    __DIR__.'/Fixtures/twig/singular.twig',
+                    __DIR__.'/Fixtures/twig/plural.twig',
+                ),
+                $this->getGettextParameters(),
+                array(
+                    'Hello %name%!',
+                    'Hello World!',
+                    'Hey %name%, I have one apple.',
+                    'Hey %name%, I have %count% apples.',
+                ),
+            ),
+        );
+    }
+
+    public function testExtractNoTranslations()
+    {
+        $extractor = new Extractor($this->twig);
+
+        $extractor->addTemplate(__DIR__.'/Fixtures/twig/empty.twig');
+        $extractor->setGettextParameters($this->getGettextParameters());
+
+        $extractor->extract();
+
+        $catalog = $this->loader->load($this->getPotFile(), null);
+
+        $this->assertEmpty($catalog->all('messages'));
+    }
+
+    private function getPotFile()
+    {
+        return __DIR__.'/Fixtures/messages.pot';
+    }
+
+    private function getGettextParameters()
+    {
+        return array(
+            '--force-po',
+            '-o',
+            $this->getPotFile(),
+        );
+    }
+
+    protected function tearDown()
+    {
+        if (file_exists($this->getPotFile())) {
+            unlink($this->getPotFile());
+        }
+    }
+}

inc/Twig/Extensions/Gettext/Test/Fixtures/twig/empty.twig

@@ -0,0 +1 @@
+Nothing to translate here.

inc/Twig/Extensions/Gettext/Test/Fixtures/twig/plural.twig

@@ -0,0 +1,5 @@
+{% trans %}
+    Hey {{ name }}, I have one apple.
+{% plural apple_count %}
+    Hey {{ name }}, I have {{ count }} apples.
+{% endtrans %}

inc/Twig/Extensions/Gettext/Test/Fixtures/twig/singular.twig

@@ -0,0 +1,9 @@
+{% trans "Hello World!" %}
+
+{% trans %}
+    Hello World!
+{% endtrans %}
+
+{% trans %}
+    Hello {{ name }}!
+{% endtrans %}