ci: focus experiment on test parallelism

Increase browser Playwright CI workers to six. Remove Node timing reports and restore the original bundle build, retaining three shards for every Node integration configuration.

Co-Authored-By: GPT-6 <codex@openai.com>

Author: nicohrubec

.github/workflows/build.yml

@@ -842,17 +842,6 @@ jobs:
         working-directory: dev-packages/node-integration-tests
         run: yarn test --shard=${{ matrix.shard }}/3
 
-      - name: Upload test timing report
-        uses: actions/upload-artifact@v7
-        if: ${{ !cancelled() }}
-        with:
-          name:
-            node-integration-timings-node-${{ matrix.node }}-ts-${{ matrix.typescript || 'default' }}-shard-${{
-            matrix.shard }}
-          path: dev-packages/node-integration-tests/vitest.junit.xml
-          retention-days: 7
-          if-no-files-found: warn
-
   job_cloudflare_integration_tests:
     name: Cloudflare Integration Tests
     needs: [job_get_metadata, job_build]

dev-packages/browser-integration-tests/playwright.browser.config.ts

@@ -3,6 +3,7 @@ import CorePlaywrightConfig from './playwright.config';
 
 const config: PlaywrightTestConfig = {
   ...CorePlaywrightConfig,
+  workers: process.env.CI ? 6 : CorePlaywrightConfig.workers,
   testDir: './suites',
 };
 

dev-packages/node-integration-tests/vite.config.ts

@@ -25,7 +25,7 @@ export default defineConfig({
     reporters: process.env.DEBUG
       ? [['default', { summary: false }]]
       : process.env.GITHUB_ACTIONS
-        ? ['dot', 'github-actions', ['junit', { classnameTemplate: '{filepath}' }]]
+        ? ['dot', 'github-actions']
         : ['verbose'],
   },
 });

dev-packages/rollup-utils/bundleHelpers.mjs

@@ -142,7 +142,9 @@ export function makeBaseBundleConfig(options) {
  * @param baseConfig The rollup config shared by the entire package
  * @returns An array of versions of that config
  */
-export function makeBundleConfigVariants(baseConfig) {
+export function makeBundleConfigVariants(baseConfig, options = {}) {
+  const { variants = BUNDLE_VARIANTS } = options;
+
   const includeDebuggingPlugin = makeIsDebugBuildPlugin(true);
   const stripDebuggingPlugin = makeIsDebugBuildPlugin(false);
   const terserPlugin = makeTerserPlugin();
@@ -172,22 +174,14 @@ export function makeBundleConfigVariants(baseConfig) {
     },
   };
 
-  const [debug, production, minifiedDebug] = BUNDLE_VARIANTS.map(variant =>
-    deepMerge(baseConfig, variantSpecificConfigMap[variant], {
+  return variants.map(variant => {
+    if (!BUNDLE_VARIANTS.includes(variant)) {
+      throw new Error(`Unknown bundle variant requested: ${variant}`);
+    }
+    return deepMerge(baseConfig, variantSpecificConfigMap[variant], {
       // Merge the plugin arrays and make sure the end result is in the correct order. Everything else can use the
       // default merge strategy.
       customMerge: key => (key === 'plugins' ? mergePlugins : undefined),
-    }),
-  );
-
-  const isOutputPlugin = plugin => ['terser', 'license'].includes(plugin.name);
-
-  debug.output = [debug, minifiedDebug].map(config => ({
-    ...config.output,
-    plugins: config.plugins.filter(isOutputPlugin),
-  }));
-
-  debug.plugins = debug.plugins.filter(plugin => !isOutputPlugin(plugin));
-
-  return [debug, production];
+    });
+  });
 }