move clearCache impl into plugin

packages/playwright-ct-core/index.js

@@ -16,7 +16,7 @@
 
 const { test: baseTest, expect, devices, defineConfig: originalDefineConfig } = require('playwright/test');
 const { fixtures } = require('./lib/mount');
-const { clearCacheCommand, runDevServerCommand, findRelatedTestFilesCommand } = require('./lib/cliOverrides');
+const { runDevServerCommand } = require('./lib/cliOverrides');
 const { createPlugin } = require('./lib/vitePlugin');
 
 const defineConfig = (...configs) => {
@@ -30,7 +30,6 @@ const defineConfig = (...configs) => {
         [require.resolve('./lib/tsxTransform')]
       ],
       cli: {
-        'clear-cache': clearCacheCommand,
         'dev-server': runDevServerCommand,
       },
     }

packages/playwright-ct-core/src/cliOverrides.ts

@@ -15,18 +15,8 @@
  * limitations under the License.
  */
 
-import { cacheDir } from 'playwright/lib/transform/compilationCache';
-import { resolveDirs } from './viteUtils';
 import { runDevServer } from './devServer';
 import type { FullConfigInternal } from 'playwright/lib/common/config';
-import { removeFolderAndLogToConsole } from 'playwright/lib/runner/testServer';
-
-export async function clearCacheCommand(config: FullConfigInternal) {
-  const dirs = await resolveDirs(config.configDir, config.config);
-  if (dirs)
-    await removeFolderAndLogToConsole(dirs.outDir);
-  await removeFolderAndLogToConsole(cacheDir);
-}
 
 export async function runDevServerCommand(config: FullConfigInternal) {
   return await runDevServer(config);

packages/playwright-ct-core/src/vitePlugin.ts

@@ -31,6 +31,7 @@ import type { ImportInfo } from './tsxTransform';
 import type { ComponentRegistry } from './viteUtils';
 import { createConfig, frameworkConfig, hasJSComponents, populateComponentsFromTests, resolveDirs, resolveEndpoint, transformIndexFile } from './viteUtils';
 import { resolveHook } from 'playwright/lib/transform/transform';
+import { removeFolderAndLogToConsole } from 'playwright/lib/runner/testServer';
 
 const log = debug('pw:vite');
 
@@ -73,6 +74,12 @@ export function createPlugin(): TestRunnerPlugin {
       if (stoppableServer)
         await new Promise(f => stoppableServer.stop(f));
     },
+
+    clearCache: async () => {
+      const dirs = await resolveDirs(configDir, config);
+      if (dirs)
+        await removeFolderAndLogToConsole(dirs.outDir);
+    }
   };
 }
 

packages/playwright/src/plugins/index.ts

@@ -24,6 +24,9 @@ export interface TestRunnerPlugin {
   begin?(suite: Suite): Promise<void>;
   end?(): Promise<void>;
   teardown?(): Promise<void>;
+
+  clearCache?(): Promise<void>;
+  runDevServer?(): Promise<void>;
 }
 
 export type TestRunnerPluginRegistration = {

packages/playwright/src/runner/tasks.ts

@@ -106,6 +106,15 @@ function addRunTasks(taskRunner: TaskRunner<TestRun>, config: FullConfigInternal
   return taskRunner;
 }
 
+export function createTaskRunnerForPluginSetup(config: FullConfigInternal, reporters: ReporterV2[]): TaskRunner<TestRun> {
+  const taskRunner = TaskRunner.create<TestRun>(reporters, config.config.globalTimeout);
+
+  for (const plugin of config.plugins)
+    taskRunner.addTask('plugin setup', createPluginSetupTask(plugin));
+
+  return taskRunner;
+}
+
 export function createTaskRunnerForList(config: FullConfigInternal, reporters: ReporterV2[], mode: 'in-process' | 'out-of-process', options: { failOnLoadErrors: boolean, populatePluginDependencies?: boolean }): TaskRunner<TestRun> {
   const taskRunner = TaskRunner.create<TestRun>(reporters, config.config.globalTimeout);
 

packages/playwright/src/runner/testServer.ts

@@ -23,7 +23,7 @@ import type * as reporterTypes from '../../types/testReporter';
 import { collectAffectedTestFiles, dependenciesForTestFile } from '../transform/compilationCache';
 import type { ConfigLocation, FullConfigInternal } from '../common/config';
 import { createReporterForTestServer, createReporters } from './reporters';
-import { TestRun, createTaskRunnerForList, createTaskRunnerForTestServer, createTaskRunnerForWatchSetup, createTaskRunnerForListFiles } from './tasks';
+import { TestRun, createTaskRunnerForList, createTaskRunnerForTestServer, createTaskRunnerForWatchSetup, createTaskRunnerForListFiles, createTaskRunnerForPluginSetup } from './tasks';
 import { open } from 'playwright-core/lib/utilsBundle';
 import ListReporter from '../reporters/list';
 import { SigIntWatcher } from './sigIntWatcher';
@@ -39,6 +39,7 @@ import { serializeError } from '../util';
 import { cacheDir } from '../transform/compilationCache';
 import { baseFullConfig } from '../isomorphic/teleReceiver';
 import { InternalReporter } from '../reporters/internalReporter';
+import { wrapReporterAsV2 } from '../reporters/reporterV2';
 
 const originalStdoutWrite = process.stdout.write;
 const originalStderrWrite = process.stderr.write;
@@ -515,11 +516,24 @@ export async function resolveCtDirs(config: FullConfigInternal) {
 }
 
 export async function clearCacheAndLogToConsole(config: FullConfigInternal) {
-  const override = (config.config as any)['@playwright/test']?.['cli']?.['clear-cache'];
-  if (override) {
-    await override(config);
-    return;
+  const errors: reporterTypes.TestError[] = [];
+  const errorReporter = wrapReporterAsV2({
+    onError(error: reporterTypes.TestError) {
+      errors.push(error);
     }
+  });
+  const taskRunner = createTaskRunnerForPluginSetup(config, [errorReporter]);
+  await taskRunner.run(new TestRun(config), 0);
+  if (errors.length > 0)
+    throw new Error('Failed to clear cache: ' + errors);
+
+  for (const plugin of config.plugins) {
+    if (!plugin.instance)
+      throw new Error('Plugin not initialized');
+
+    await plugin.instance.clearCache?.();
+  }
+
   await removeFolderAndLogToConsole(cacheDir);
 }