refactor: generate translations at build time from .po files

Author: robertodauria

package.json

@@ -6,8 +6,7 @@
   "homepage": "https://speed.measurementlab.net",
   "license": "Apache-2.0",
   "scripts": {
-    "build": "node scripts/build.js",
-    "convert-translations": "node scripts/po-to-json.js"
+    "build": "node scripts/build.js"
   },
   "dependencies": {
     "@m-lab/msak": "0.3.1",

scripts/build.js

@@ -64,6 +64,10 @@ function build() {
   console.log('Copying fonts for font-awesome compatibility...');
   copyDir(path.join(SRC, 'assets', 'fonts'), path.join(DIST, 'fonts'));
 
+  // Convert .po translations to JSON
+  console.log('Converting translations...');
+  require('./po-to-json');
+
   // Copy M-Lab libraries from node_modules
   console.log('Copying M-Lab libraries...');
   const libDest = path.join(DIST, 'libraries');

scripts/po-to-json.js

@@ -9,7 +9,7 @@ const path = require('path');
 const gettextParser = require('gettext-parser');
 
 const LANGUAGES_DIR = path.join(__dirname, '..', 'translations', 'languages');
-const OUTPUT_DIR = path.join(__dirname, '..', 'src', 'translations');
+const OUTPUT_DIR = process.argv[2] || path.join(__dirname, '..', 'dist', 'translations');
 
 // Language code mapping (e.g., de_DE.po -> de.json)
 const LANG_MAP = {