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242 lines
7.4 KiB
PHP
242 lines
7.4 KiB
PHP
<?php
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/**
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.yiiframework.com/
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* @copyright Copyright (c) 2008 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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namespace yii\console\controllers;
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use Yii;
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use yii\console\Controller;
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use yii\console\Exception;
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use yii\helpers\FileHelper;
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/**
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* This command extracts messages to be translated from source files.
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* The extracted messages are saved as PHP message source files
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* under the specified directory.
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*
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* Usage:
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* 1. Create a configuration file using the 'message/config' command:
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* yii message/config /path/to/myapp/messages/config.php
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* 2. Edit the created config file, adjusting it for your web application needs.
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* 3. Run the 'message/extract' command, using created config:
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* yii message /path/to/myapp/messages/config.php
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @since 2.0
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*/
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class MessageController extends Controller
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{
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/**
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* @var string controller default action ID.
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*/
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public $defaultAction = 'extract';
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/**
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* Creates a configuration file for the "extract" command.
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*
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* The generated configuration file contains detailed instructions on
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* how to customize it to fit for your needs. After customization,
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* you may use this configuration file with the "extract" command.
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*
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* @param string $filePath output file name or alias.
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* @throws Exception on failure.
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*/
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public function actionConfig($filePath)
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{
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$filePath = Yii::getAlias($filePath);
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if (file_exists($filePath)) {
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if (!$this->confirm("File '{$filePath}' already exists. Do you wish to overwrite it?")) {
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return;
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}
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}
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copy(Yii::getAlias('@yii/views/messageConfig.php'), $filePath);
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echo "Configuration file template created at '{$filePath}'.\n\n";
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}
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/**
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* Extracts messages to be translated from source code.
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*
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* This command will search through source code files and extract
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* messages that need to be translated in different languages.
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*
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* @param string $configFile the path or alias of the configuration file.
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* You may use the "yii message/config" command to generate
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* this file and then customize it for your needs.
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* @throws Exception on failure.
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*/
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public function actionExtract($configFile)
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{
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$configFile = Yii::getAlias($configFile);
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if (!is_file($configFile)) {
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throw new Exception("The configuration file does not exist: $configFile");
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}
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$config = array_merge([
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'translator' => 'Yii::t',
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'overwrite' => false,
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'removeUnused' => false,
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'sort' => false,
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], require($configFile));
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if (!isset($config['sourcePath'], $config['messagePath'], $config['languages'])) {
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throw new Exception('The configuration file must specify "sourcePath", "messagePath" and "languages".');
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}
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if (!is_dir($config['sourcePath'])) {
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throw new Exception("The source path {$config['sourcePath']} is not a valid directory.");
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}
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if (!is_dir($config['messagePath'])) {
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throw new Exception("The message path {$config['messagePath']} is not a valid directory.");
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}
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if (empty($config['languages'])) {
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throw new Exception("Languages cannot be empty.");
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}
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$files = FileHelper::findFiles(realpath($config['sourcePath']), $config);
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$messages = [];
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foreach ($files as $file) {
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$messages = array_merge_recursive($messages, $this->extractMessages($file, $config['translator']));
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}
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foreach ($config['languages'] as $language) {
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$dir = $config['messagePath'] . DIRECTORY_SEPARATOR . $language;
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if (!is_dir($dir)) {
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@mkdir($dir);
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}
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foreach ($messages as $category => $msgs) {
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$file = str_replace("\\", '/', "$dir/$category.php");
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$path = dirname($file);
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if (!is_dir($path)) {
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mkdir($path, 0755, true);
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}
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$msgs = array_values(array_unique($msgs));
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$this->generateMessageFile($msgs, $file, $config['overwrite'], $config['removeUnused'], $config['sort']);
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}
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}
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}
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/**
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* Extracts messages from a file
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*
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* @param string $fileName name of the file to extract messages from
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* @param string $translator name of the function used to translate messages
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* @return array
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*/
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protected function extractMessages($fileName, $translator)
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{
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echo "Extracting messages from $fileName...\n";
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$subject = file_get_contents($fileName);
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$messages = [];
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if (!is_array($translator)) {
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$translator = [$translator];
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}
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foreach ($translator as $currentTranslator) {
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$n = preg_match_all(
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'/\b' . $currentTranslator . '\s*\(\s*(\'.*?(?<!\\\\)\'|".*?(?<!\\\\)")\s*,\s*(\'.*?(?<!\\\\)\'|".*?(?<!\\\\)")\s*[,\)]/s',
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$subject, $matches, PREG_SET_ORDER);
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for ($i = 0; $i < $n; ++$i) {
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if (($pos = strpos($matches[$i][1], '.')) !== false) {
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$category = substr($matches[$i][1], $pos + 1, -1);
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} else {
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$category = substr($matches[$i][1], 1, -1);
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}
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$message = $matches[$i][2];
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$messages[$category][] = eval("return $message;"); // use eval to eliminate quote escape
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}
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}
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return $messages;
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}
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/**
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* Writes messages into file
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*
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* @param array $messages
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* @param string $fileName name of the file to write to
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* @param boolean $overwrite if existing file should be overwritten without backup
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* @param boolean $removeUnused if obsolete translations should be removed
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* @param boolean $sort if translations should be sorted
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*/
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protected function generateMessageFile($messages, $fileName, $overwrite, $removeUnused, $sort)
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{
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echo "Saving messages to $fileName...";
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if (is_file($fileName)) {
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$translated = require($fileName);
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sort($messages);
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ksort($translated);
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if (array_keys($translated) == $messages) {
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echo "nothing new...skipped.\n";
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return;
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}
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$merged = [];
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$untranslated = [];
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foreach ($messages as $message) {
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if (array_key_exists($message, $translated) && strlen($translated[$message]) > 0) {
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$merged[$message] = $translated[$message];
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} else {
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$untranslated[] = $message;
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}
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}
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ksort($merged);
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sort($untranslated);
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$todo = [];
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foreach ($untranslated as $message) {
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$todo[$message] = '';
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}
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ksort($translated);
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foreach ($translated as $message => $translation) {
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if (!isset($merged[$message]) && !isset($todo[$message]) && !$removeUnused) {
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if (substr($translation, 0, 2) === '@@' && substr($translation, -2) === '@@') {
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$todo[$message] = $translation;
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} else {
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$todo[$message] = '@@' . $translation . '@@';
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}
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}
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}
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$merged = array_merge($todo, $merged);
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if ($sort) {
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ksort($merged);
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}
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if (false === $overwrite) {
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$fileName .= '.merged';
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}
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echo "translation merged.\n";
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} else {
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$merged = [];
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foreach ($messages as $message) {
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$merged[$message] = '';
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}
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ksort($merged);
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echo "saved.\n";
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}
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$array = str_replace("\r", '', var_export($merged, true));
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$content = <<<EOD
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<?php
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/**
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* Message translations.
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*
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* This file is automatically generated by 'yii {$this->id}' command.
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* It contains the localizable messages extracted from source code.
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* You may modify this file by translating the extracted messages.
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*
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* Each array element represents the translation (value) of a message (key).
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* If the value is empty, the message is considered as not translated.
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* Messages that no longer need translation will have their translations
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* enclosed between a pair of '@@' marks.
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*
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* Message string can be used with plural forms format. Check i18n section
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* of the guide for details.
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*
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* NOTE: this file must be saved in UTF-8 encoding.
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*/
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return $array;
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EOD;
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file_put_contents($fileName, $content);
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}
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}
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