Write code to programmatically check if our translations are up-to-da…

…te (#902)

create update tracker that checks if translations are up-to-date

frontend/package.json

@@ -56,6 +56,7 @@
 		"eslint-plugin-svelte": "^2.39.0",
 		"globals": "^13.24.0",
 		"graphql": "^16.8.1",
+		"json5": "^2.2.3",
 		"jwt-decode": "^4.0.0",
 		"postcss": "^8.4.38",
 		"rimraf": "^5.0.7",

frontend/src/lib/i18n/locales/update_tracker.mjs

@@ -0,0 +1,45 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import json5 from 'json5';
+
+function compileKeys(obj, prefix = '') {
+  let keys = [];
+  for (const key in obj) {
+      const fullKey = prefix ? `${prefix}.${key}` : key;
+      keys.push(fullKey);
+      const subKey = obj[key];
+      if (typeof subKey !== 'string') {
+        const subKeys = compileKeys(subKey, fullKey);
+        keys = keys.concat(subKeys);
+      }
+  }
+  return keys;
+}
+
+function getDiffKeys(stdKeys, lang) {
+    const langJson = json5.parse(fs.readFileSync(`${lang}.json`, 'utf-8'));
+    const langKeysSet = new Set(compileKeys(langJson, ''));
+    const diff = stdKeys.filter(x => !langKeysSet.has(x));
+    return diff;
+}
+
+function main() {
+  const dirname = import.meta.dirname;
+  const files = fs.readdirSync(dirname);
+  const locales = files
+      .filter(file => path.extname(file).toLowerCase() === '.json')
+      .map(file => path.basename(file, '.json'))
+      .filter(file => file !== 'en');
+
+  const enJson = json5.parse(fs.readFileSync('en.json', 'utf-8'));
+  const enAllKeys = compileKeys(enJson, '');
+
+  const output = {};
+  locales.forEach(lang => {
+      const diff = getDiffKeys(enAllKeys, lang);
+      output[lang] = diff;
+  });
+  console.log(output);
+}
+
+main();