Added language names for all supported locales.

scripts/download-language-names.js

@@ -0,0 +1,39 @@
+const fs = require('fs');
+const path = require('path');
+const https = require('https');
+const chalk = require('chalk');
+
+const src = path.resolve(__dirname, '../lang');
+const dest = path.resolve(__dirname, '../public/language');
+const files = fs.readdirSync(src);
+
+const getUrl = locale =>
+  `https://raw.githubusercontent.com/umpirsky/language-list/master/data/${locale}/language.json`;
+
+const asyncForEach = async (array, callback) => {
+  for (let index = 0; index < array.length; index++) {
+    await callback(array[index], index, array);
+  }
+};
+
+if (!fs.existsSync(dest)) {
+  fs.mkdirSync(dest);
+}
+
+const download = async files => {
+  await asyncForEach(files, async file => {
+    const locale = file.replace('-', '_').replace('.json', '');
+
+    const filename = path.join(dest, file);
+    if (!fs.existsSync(filename)) {
+      await new Promise(resolve => {
+        https.get(getUrl(locale), res => {
+          console.log('Downloaded', chalk.greenBright('->'), filename);
+          resolve(res.pipe(fs.createWriteStream(filename)));
+        });
+      });
+    }
+  });
+};
+
+download(files);