Add build task for verify translations

package.json

@@ -175,6 +175,7 @@
     "event-stream": "3.3.2",
     "expect.js": "0.3.1",
     "faker": "1.1.0",
+    "glob-promise": "1.0.6",
     "grunt": "1.0.1",
     "grunt-aws-s3": "0.14.5",
     "grunt-babel": "5.0.1",

tasks/build/index.js

@@ -11,6 +11,7 @@ module.exports = function (grunt) {
       '_build:babelOptions',
       '_build:plugins',
       '_build:data',
+      '_build:verifyTranslations',
       '_build:packageJson',
       '_build:readme',
       '_build:babelCache',

tasks/build/verify_translations.js

@@ -0,0 +1,19 @@
+import i18nVerify from '../../src/core_plugins/i18n/server/tool/i18n_verify_keys';
+import fromRoot from '../../src/utils/from_root';
+
+module.exports = function (grunt) {
+  grunt.registerTask('_build:verifyTranslations', function () {
+    const parsePaths = [fromRoot('/src/ui/views/*.jade')];
+    const translationFiles = fromRoot('/src/core_plugins/kibana/i18n/en.json');
+    const keyPattern = 'i18n\\(\'(.*)\'\\)';
+    const keyPatternRegEx = new RegExp(keyPattern, 'g');
+
+    i18nVerify.verifyTranslationKeys(parsePaths, translationFiles, keyPatternRegEx).then(function (keysNotTranslated) {
+      if (keysNotTranslated && Object.keys(keysNotTranslated).length > 0) {
+        console.error('Verification of the following translations keys are not translated: ', keysNotTranslated);
+      } else {
+        console.log('Verification of translations keys are a success.');
+      }
+    });
+  });
+};