Renamed postbuild.mjs to postbuild.js

package.json

@@ -6,7 +6,7 @@
     "ng": "ng",
     "start": "ng serve",
     "build": "ng build --configuration production",
-    "prebuild": "node src/postbuild.mjs",
+    "prebuild": "node src/postbuild.js",
     "heroku-postbuild": "npm install --prefix backend",
     "test": "ng test",
     "lint": "ng lint",

src/postbuild.js

@@ -0,0 +1,43 @@
+const fs = require('fs-extra');
+const path = require('path');
+const xliffToJSON = require('xliff-to-json');
+
+async function recFindByExt(base,ext,files,result)
+{
+    files = files || (await fs.readdir(base))
+    result = result || []
+
+    for (const file of files) {
+        var newbase = path.join(base,file)
+        if ( (await fs.stat(newbase)).isDirectory() )
+        {
+            result = await recFindByExt(newbase,ext,await fs.readdir(newbase),result)
+        }
+        else
+        {
+            if ( file.substr(-1*(ext.length+1)) == '.' + ext )
+            {
+                result.push(newbase)
+            }
+        }
+    }
+    return result
+}
+
+// outputs array of supported locales
+async function createLocalizationJSON() {
+    xliffToJSON.convert('src/assets/i18n');
+    const files = await recFindByExt(path.join('src', 'assets', 'i18n'), 'json');
+    const locales = [];
+
+    for (let i = 0; i < files.length; i++) {
+        const file = path.basename(files[i]);
+        const file_parts = file.split('.');
+        locales.push(file_parts[1]);
+    }
+
+    fs.unlinkSync('src/assets/i18n/messages.en.json');
+    fs.writeJSONSync('src/assets/i18n/supported_locales.json', {supported_locales: locales});
+}
+
+createLocalizationJSON();