[FSSDK-10985] Implement log message file generator (#974)

Author: raju-opti

.gitignore

@@ -12,4 +12,6 @@ dist/
 .DS_STORE
 
 browserstack.err
-local.log
+local.log
+
+**/*.gen.ts

message_generator.ts

@@ -0,0 +1,36 @@
+import path from 'path';
+import { writeFile } from 'fs/promises';
+
+const generate = async () => {
+  const inp = process.argv.slice(2);
+  for(const filePath of inp) {
+    console.log('generating messages for: ', filePath);
+    const parsedPath = path.parse(filePath);
+    const fileName = parsedPath.name;
+    const dirName = parsedPath.dir;
+    const ext = parsedPath.ext;
+
+    const genFilePath = path.join(dirName, `${fileName}.gen${ext}`);
+    console.log('generated file path: ', genFilePath);
+    const exports = await import(filePath);
+    const messages : Array<any> = [];
+
+    let genOut = '';
+
+    Object.keys(exports).forEach((key, i) => {
+      const msg = exports[key];
+      genOut += `export const ${key} = '${i}';\n`;
+      messages.push(exports[key])
+    });
+    
+    genOut += `export const messages = ${JSON.stringify(messages, null, 2)};`
+    await writeFile(genFilePath, genOut, 'utf-8');
+  };
+}
+
+generate().then(() => {
+  console.log('successfully generated messages');
+}).catch((e) => {
+  console.error(e);
+  process.exit(1);
+});

package-lock.json

@@ -88,7 +88,8 @@
     "coveralls": "nyc --reporter=lcov npm test",
     "prepare": "npm run build",
     "prepublishOnly": "npm test && npm run test-ci",
-    "postbuild:win": "@powershell copy \"dist/index.lite.d.ts\" \"dist/optimizely.lite.es.d.ts\" && @powershell copy \"dist/index.lite.d.ts\" \"dist/optimizely.lite.es.min.d.ts\" && @powershell copy \"dist/index.lite.d.ts\" \"dist/optimizely.lite.min.d.ts\""
+    "postbuild:win": "@powershell copy \"dist/index.lite.d.ts\" \"dist/optimizely.lite.es.d.ts\" && @powershell copy \"dist/index.lite.d.ts\" \"dist/optimizely.lite.es.min.d.ts\" && @powershell copy \"dist/index.lite.d.ts\" \"dist/optimizely.lite.min.d.ts\"",
+    "genmsg": "jiti message_generator ./lib/error_messages.ts"
   },
   "repository": {
     "type": "git",
@@ -132,6 +133,7 @@
     "eslint-config-prettier": "^6.10.0",
     "eslint-plugin-prettier": "^3.1.2",
     "happy-dom": "^14.12.3",
+    "jiti": "^2.4.1",
     "json-loader": "^0.5.4",
     "karma": "^6.4.0",
     "karma-browserstack-launcher": "^1.5.1",