simple CLI Module to display missing locales keys

api/core/Directus/Console/Modules/LanguageModule.php

@@ -0,0 +1,72 @@
+<?php
+
+namespace Directus\Console\Modules;
+
+use Directus\Bootstrap;
+use Directus\Util\ArrayUtils;
+
+
+class LanguageModule extends ModuleBase
+{
+
+    protected $__module_name = 'language';
+    protected $__module_description = 'command to know the missing/removed language keys';
+    protected $commands_help;
+    protected $help;
+
+    public function __construct()
+    {
+        $this->help = array(
+            'diff' => __t('The Languages difference keys.')
+        );
+
+        $this->commands_help = array(
+            'diff' => __t('The Languages difference keys.')
+        );
+    }
+
+    public function cmdHelp($args, $extra)
+    {
+        echo PHP_EOL . __t('Directus Command ') . $this->__module_name . ':' . $extra[0] . __t(' help') . PHP_EOL . PHP_EOL;
+        echo "\t" . $this->commands_help[$extra[0]] . PHP_EOL;
+        echo PHP_EOL . PHP_EOL;
+    }
+
+    protected function cmdDiff($args, $extra)
+    {
+        // TODO: Accepts a language code to compare it with another. (Default: English)
+        $languageManager = Bootstrap::get('languagesManager');
+
+        $languages = $languageManager->getLanguageList();
+
+        if (count($languages) <= 1) {
+            return [];
+        }
+
+        $languagesPhrases = [];
+        foreach ($languages as $code => $name) {
+            $languagesPhrases[] = [
+                'code' => $code,
+                'name' => $name,
+                'phrases_keys' => get_locale_keys($code),
+                'diff' => []
+            ];
+        }
+
+        // =============================================================================
+        // A language to compare to the rest of languages keys
+        // =============================================================================
+        $mainLanguage = $languagesPhrases[0];
+        unset($languagesPhrases[0]);
+
+        foreach ($languagesPhrases as $language) {
+            $diff = ArrayUtils::missing($mainLanguage['phrases_keys'], $language['phrases_keys']);
+            echo "--------------------" . PHP_EOL;
+            echo $language['name'] . " has " . count($diff) . " missing/removed keys compared against " . $mainLanguage['name'] . PHP_EOL;
+            foreach ($diff as $key) {
+                echo "\t - " . $key . PHP_EOL;
+            }
+            echo "--------------------" . PHP_EOL . PHP_EOL;
+        }
+    }
+}

api/core/Directus/Util/ArrayUtils.php

@@ -135,4 +135,24 @@ public static function flatKey($separator, $array, $prepend = '')
         return $results;
     }
 
+    /**
+     * Get the missing values from a array in another array
+     *
+     * @param array $from
+     * @param array $target
+     *
+     * @return array
+     */
+    public static function missing(array $from, array $target)
+    {
+        $missing = [];
+
+        foreach($target as $value) {
+            if (!in_array($value, $from)) {
+                $missing[] = $value;
+            }
+        }
+
+        return $missing;
+    }
 }

api/core/functions.php

@@ -422,12 +422,11 @@ function get_locales_filename()
      */
     function get_locale_keys($locale)
     {
-        $content = file_get_contents(BASE_PATH . '/api/locales/' . $locale . '.json');
-        $json = json_decode($content, true);
+        $phrases = get_locale_phrases($locale);
 
         $keys = [];
-        if ($json) {
-            $keys = array_keys($json);
+        if ($phrases) {
+            $keys = array_keys($phrases);
         }
 
         return $keys;
@@ -453,9 +452,14 @@ function is_locale_available($locale)
 }
 
 if (!function_exists('get_default_phrases')) {
-    function get_default_phrases()
-    {
-        $phrasesPath = BASE_PATH . '/api/locales/en.json';
+    function get_default_phrases() {
+        return get_locale_phrases('en');
+    }
+}
+
+if (!function_exists('get_locale_phrases')) {
+    function get_locale_phrases($locale) {
+        $phrasesPath = BASE_PATH . '/api/locales/' . $locale . '.json';
 
         return json_decode(file_get_contents($phrasesPath), true);
     }

tests/api/Util/ArrayUtilsTest.php

@@ -73,4 +73,13 @@ public function testFlatKeys()
         $this->assertArrayHasKey('user_name', $result);
         $this->assertArrayHasKey('user_country_name', $result);
     }
+
+    public function testMissing()
+    {
+        $array1 = ['one', 'two', 'three', 'five'];
+        $array2 = ['one', 'four', 'five'];
+        $result = ArrayUtils::missing($array1, $array2);
+
+        $this->assertTrue(in_array('four', $result));
+    }
 }