perf(build): optimize build scripts for parallel execution and remove redundant checks (#24307)

Author: sehoon38

packages/vscode-ide-companion/package.json

@@ -108,7 +108,7 @@
   "scripts": {
     "prepackage": "npm run generate:notices && npm run check-types && npm run lint && npm run build:prod",
     "build": "npm run build:dev",
-    "build:dev": "npm run check-types && npm run lint && node esbuild.js",
+    "build:dev": "node esbuild.js",
     "build:prod": "node esbuild.js --production",
     "generate:notices": "node ./scripts/generate-notices.js",
     "prepare": "npm run generate:notices",

scripts/build.js

@@ -32,7 +32,32 @@ if (!existsSync(join(root, 'node_modules'))) {
 
 // build all workspaces/packages
 execSync('npm run generate', { stdio: 'inherit', cwd: root });
-execSync('npm run build --workspaces', { stdio: 'inherit', cwd: root });
+
+if (process.env.CI) {
+  console.log('CI environment detected. Building workspaces sequentially...');
+  execSync('npm run build --workspaces', { stdio: 'inherit', cwd: root });
+} else {
+  // Build core first because everyone depends on it
+  console.log('Building @google/gemini-cli-core...');
+  execSync('npm run build -w @google/gemini-cli-core', {
+    stdio: 'inherit',
+    cwd: root,
+  });
+
+  // Build the rest in parallel
+  console.log('Building other workspaces in parallel...');
+  const workspaceInfo = JSON.parse(
+    execSync('npm query .workspace --json', { cwd: root, encoding: 'utf-8' }),
+  );
+  const parallelWorkspaces = workspaceInfo
+    .map((w) => w.name)
+    .filter((name) => name !== '@google/gemini-cli-core');
+
+  execSync(
+    `npx npm-run-all --parallel ${parallelWorkspaces.map((w) => `"build -w ${w}"`).join(' ')}`,
+    { stdio: 'inherit', cwd: root },
+  );
+}
 
 // also build container image if sandboxing is enabled
 // skip (-s) npm install + build since we did that above