initial translations support

lib/translate.js

@@ -0,0 +1,35 @@
+'use strict';
+
+const config = require('config');
+
+const Gettext = require('node-gettext');
+const gt = new Gettext();
+const fs = require('fs');
+const path = require('path');
+const log = require('npmlog');
+const gettextParser = require('gettext-parser');
+
+const language = config.language || 'en';
+
+[].concat(config.language || []).forEach(lang => {
+    let data;
+    let file = path.join(__dirname, '..', 'languages', lang + '.mo');
+    try {
+        data = gettextParser.mo.parse(fs.readFileSync(file));
+    } catch (E) {
+        // ignore
+    }
+    if (data) {
+        gt.addTranslations(lang, lang, data);
+        gt.setTextDomain(lang);
+        gt.setLocale(lang);
+        log.info('LANG', 'Loaded language file for %s', lang);
+    }
+});
+
+module.exports._ = str => {
+    if (typeof str !== 'string') {
+        str = String(str);
+    }
+    return gt.dgettext(language, str);
+};