Added script to compare language files [#170116509]

This will allow us to see what is not translated and if there are missing keys.

bin/compare-langs.js

@@ -0,0 +1,57 @@
+#!/usr/bin/env node
+
+const fs = require("fs");
+
+const langPath = "../src/code/utils/lang";
+const masterLangFile = "en-US-master.json";
+
+const langNames = {
+  "en-US.json": "English",
+  "es.json": "Spanish",
+  "el.json": "Greek",
+  "et.json": "Estonian",
+  "de.json": "German",
+  "he.json": "Hebrew",
+  "nb.json": "Norwegian: Bokmal",
+  "nn.json": "Norwegian: Nynorsk",
+  "pl.json": "Polish",
+  "tr.json": "Turkish",
+  "zh-TW.json": "Chinese",
+};
+
+const loadLang = (langFile) => {
+  const contents = fs
+    .readFileSync(`${langPath}/${langFile}`)
+    .toString()
+    .replace(/(\/\/.*)$/gm, "");
+  return JSON.parse(contents);
+};
+
+// load master
+const master = loadLang(masterLangFile);
+const masterKeys = Object.keys(master);
+
+// compare all the other files
+const langFiles = fs.readdirSync(langPath).filter(file => file !== masterLangFile);
+langFiles.forEach((langFile) => {
+  const lang = loadLang(langFile);
+  const langKeys = Object.keys(lang);
+  console.log(`Comparing ${masterLangFile} with ${langFile} (${langNames[langFile]})`);
+  if (langFile.indexOf("en-US") === -1) {
+    masterKeys.forEach(masterKey => {
+      if (master[masterKey] === lang[masterKey]) {
+        console.log(`  ${masterKey} is not translated in ${langFile}`);
+      }
+    })
+  }
+  masterKeys.forEach(masterKey => {
+    if (langKeys.indexOf(masterKey) === -1) {
+      console.log(`  *** ${langFile} missing ${masterKey}`);
+    }
+  })
+  langKeys.forEach(langKey => {
+    if (masterKeys.indexOf(langKey) === -1) {
+      console.log(`  *** ${masterLangFile} missing ${langKey}`);
+    }
+  })
+})