feat: module separation of worker module (#60)

Author: mato533

infra/compiler/src/index.ts

@@ -60,6 +60,8 @@ if (entryPoints.length < 1) {
     throw new Error(`No export module found to build at: ${absWorkingDir}`)
 }
 
+const outdir = path.resolve(absWorkingDir, 'dist')
+
 const ctx = await context({
     sourceRoot: absWorkingDir,
     entryPoints,
@@ -69,10 +71,11 @@ const ctx = await context({
     sourcemap: !options.production,
     sourcesContent: false,
     platform: 'node',
-    outdir: path.resolve(absWorkingDir, 'dist'),
+    outdir,
     outExtension: { '.js': '.cjs' },
     external: ['vscode'],
     logLevel: 'silent',
+    metafile: true,
     plugins: [
         /* add to the end of plugins array */
         esbuildProblemMatcherPlugin,
@@ -81,6 +84,10 @@ const ctx = await context({
 if (options.watch) {
     await ctx.watch()
 } else {
-    await ctx.rebuild()
+    const result = await ctx.rebuild()
     await ctx.dispose()
+
+    if (!options.production) {
+        fss.writeFileSync(path.join(outdir, 'meta.json'), JSON.stringify(result.metafile))
+    }
 }

packages/vscode-wdio-worker/package.json

@@ -6,6 +6,15 @@
     "exports": {
         ".": {
             "import": "./dist/index.js"
+        },
+        "./windows": {
+            "import": "./dist/config.js"
+        },
+        "./parser/ast": {
+            "import": "./dist/parsers/js.js"
+        },
+        "./parser/cucumber": {
+            "import": "./dist/parsers/cucumber.js"
         }
     },
     "scripts": {

packages/vscode-wdio-worker/src/config.ts

@@ -7,7 +7,10 @@ import * as t from '@babel/types'
 import recast from 'recast'
 
 const reporterIdentifierName = 'VscodeJsonReporter'
-const VSCODE_REPORTER_PATH = path.resolve(__dirname, 'reporter.cjs')
+
+// This file is bundle as parser/ats.js at the package of vscode-webdriverio
+// So, the correct reporter path is parent directory
+const VSCODE_REPORTER_PATH = path.resolve(__dirname, '../reporter.cjs')
 /**
  * Since Windows cannot import by reporter file path due to issues with
  * the `initializePlugin` method of wdio-utils, the policy is to create a temporary configuration file.

packages/vscode-wdio-worker/src/parsers/cucumber.ts

@@ -12,7 +12,7 @@ import type { CucumberTestData, StepType, WorkerMetaContext } from '@vscode-wdio
  * @returns Array of test case information
  */
 export function parseCucumberFeature(this: WorkerMetaContext, fileContent: string, uri: string) {
-    this.log.debug('Cucumber parser is used.')
+    this.log.debug(`Start parsing the cucumber feature file: ${uri}`)
     try {
         // Initialize the parser components
         const builder = new AstBuilder(IdGenerator.uuid())

packages/vscode-wdio-worker/src/parsers/index.ts

@@ -1,11 +1,20 @@
 import * as fs from 'node:fs/promises'
 import path from 'node:path'
 
-import { parseCucumberFeature } from './cucumber.js'
-import { parseTestCases } from './js.js'
+import { getAstParser, getCucumberParser } from './utils.js'
 import type { ReadSpecsOptions } from '@vscode-wdio/types/api'
 import type { WorkerMetaContext } from '@vscode-wdio/types/worker'
 
+async function parseFeatureFile(context: WorkerMetaContext, contents: string, normalizeSpecPath: string) {
+    const p = await getCucumberParser(context)
+    return p.call(context, contents, normalizeSpecPath)
+}
+
+async function parseJsFile(context: WorkerMetaContext, contents: string, normalizeSpecPath: string) {
+    const p = await getAstParser(context)
+    return p.call(context, contents, normalizeSpecPath)
+}
+
 export async function parse(this: WorkerMetaContext, options: ReadSpecsOptions) {
     return await Promise.all(
         options.specs.map(async (spec) => {
@@ -14,8 +23,8 @@ export async function parse(this: WorkerMetaContext, options: ReadSpecsOptions)
             const contents = await fs.readFile(normalizeSpecPath, { encoding: 'utf8' })
             try {
                 const testCases = isCucumberFeatureFile(normalizeSpecPath)
-                    ? parseCucumberFeature.call(this, contents, normalizeSpecPath) // Parse Cucumber feature file
-                    : parseTestCases.call(this, contents, normalizeSpecPath) // Parse JavaScript/TypeScript test file
+                    ? await parseFeatureFile(this, contents, normalizeSpecPath) // Parse Cucumber feature file
+                    : await parseJsFile(this, contents, normalizeSpecPath) // Parse JavaScript/TypeScript test file
 
                 this.log.debug(`Successfully parsed: ${normalizeSpecPath}`)
                 return {

packages/vscode-wdio-worker/src/parsers/utils.ts

@@ -0,0 +1,28 @@
+import path from 'node:path'
+
+import { dynamicLoader } from '../utils.js'
+import type { WorkerMetaContext } from '@vscode-wdio/types/worker'
+import type { parseCucumberFeature } from './cucumber.js'
+import type { parseTestCases } from './js.js'
+
+export type CucumberParser = typeof parseCucumberFeature
+export type AstParser = typeof parseTestCases
+
+const CUCUMBER_PARSER_PATH = path.resolve(__dirname, 'parser/cucumber.cjs')
+const AST_PARSER_PATH = path.resolve(__dirname, 'parser/ast.cjs')
+
+let cucumberParser: CucumberParser | undefined
+let astParser: AstParser | undefined
+
+export async function getCucumberParser(context: WorkerMetaContext): Promise<CucumberParser> {
+    return (await dynamicLoader(
+        context,
+        cucumberParser,
+        CUCUMBER_PARSER_PATH,
+        'parseCucumberFeature'
+    )) as CucumberParser
+}
+
+export async function getAstParser(context: WorkerMetaContext): Promise<AstParser> {
+    return (await dynamicLoader(context, astParser, AST_PARSER_PATH, 'parseTestCases')) as AstParser
+}

packages/vscode-wdio-worker/src/test.ts

@@ -3,7 +3,7 @@ import * as os from 'node:os'
 import { dirname, isAbsolute, join, resolve } from 'node:path'
 
 import { getLauncherInstance } from './cli.js'
-import { createTempConfigFile, isWindows } from './config.js'
+import { getTempConfigCreator, isWindows } from './utils.js'
 import type { RunTestOptions, TestResultData } from '@vscode-wdio/types/api'
 import type { ResultSet } from '@vscode-wdio/types/reporter'
 import type { LoggerInterface } from '@vscode-wdio/types/utils'
@@ -43,7 +43,8 @@ export async function runTest(this: WorkerMetaContext, options: RunTestOptions):
         }
 
         if (isWindows()) {
-            configFile = await createTempConfigFile(options.configPath, outputDir.json!)
+            const creator = await getTempConfigCreator(this)
+            configFile = await creator(options.configPath, outputDir.json!)
             options.configPath = configFile
             wdioArgs.configPath = configFile
         }

packages/vscode-wdio-worker/src/utils.ts

@@ -0,0 +1,39 @@
+import path from 'node:path'
+import { pathToFileURL } from 'node:url'
+
+import type { WorkerMetaContext } from '@vscode-wdio/types'
+import type { createTempConfigFile } from './config.js'
+
+export type TempConfigFileCreator = typeof createTempConfigFile
+
+const VSCODE_WINDOWS_CONFIG_CREATOR_PATH = path.resolve(__dirname, 'parser/ast.cjs')
+
+let tempConfigCreator: TempConfigFileCreator | undefined
+
+export async function getTempConfigCreator(context: WorkerMetaContext): Promise<TempConfigFileCreator> {
+    return (await dynamicLoader(
+        context,
+        tempConfigCreator,
+        VSCODE_WINDOWS_CONFIG_CREATOR_PATH,
+        'createTempConfigFile'
+    )) as TempConfigFileCreator
+}
+
+export function isWindows() {
+    return process.platform === 'win32'
+}
+
+export async function dynamicLoader(
+    context: WorkerMetaContext,
+    libModule: unknown,
+    modulePath: string,
+    fnName: string
+): Promise<unknown> {
+    if (libModule) {
+        context.log.debug(`Use cached ${path.dirname(modulePath)}`)
+        return libModule
+    }
+    context.log.debug(`Import ${path.basename(modulePath)}`)
+    libModule = (await import(pathToFileURL(modulePath).href))[fnName]
+    return libModule
+}

packages/vscode-wdio-worker/tests/config.test.ts

@@ -26,13 +26,13 @@ vi.mock('node:path', async (importOriginal) => {
     return {
         default: {
             ...actual,
-            resolve: vi.fn((_, f) => `/path/to/${f}`),
+            resolve: vi.fn((_, f) => path.posix.resolve(`/path/to/parser/${f}`)),
         },
     }
 })
 
 describe('config.ts', () => {
-    const VSCODE_REPORTER_PATH = path.resolve(__dirname, 'reporter.cjs')
+    const VSCODE_REPORTER_PATH = path.resolve(__dirname, '../reporter.cjs')
     const reporterPathUrl = pathToFileURL(VSCODE_REPORTER_PATH).href
 
     beforeEach(() => {

packages/vscode-wdio-worker/tests/parsers/cucumber.test.ts

@@ -340,7 +340,9 @@ describe('Cucumber Parser', () => {
             parseCucumberFeature.call(mockContext, basicFeatureContent, 'basic-feature.feature')
 
             // Verify debug log was called
-            expect(mockContext.log.debug).toHaveBeenCalledWith('Cucumber parser is used.')
+            expect(mockContext.log.debug).toHaveBeenCalledWith(
+                'Start parsing the cucumber feature file: basic-feature.feature'
+            )
         })
 
         it('should include proper source ranges for each element', () => {