fix: node ES module + worker issue on Windows

close #389

.codesandbox/ci.json

@@ -1,5 +1,5 @@
 {
-  "node": "14",
+  "node": "16",
   "packages": [
     "packages/*"
   ],

.gitattributes

@@ -0,0 +1 @@
+* text=auto eol=lf

.github/workflows/ci.yml

@@ -6,14 +6,18 @@ on:
 
 jobs:
   ci:
-    name: Lint and Test with Node.js ${{ matrix.node }}
+    name: Lint and Test with Node.js ${{ matrix.node }} on ${{ matrix.os }}
     strategy:
       matrix:
+        os:
+          - macos-latest
+          - ubuntu-latest
+          - windows-latest
         node:
           - 14
           - 16
           - 18
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v3
@@ -39,6 +43,7 @@ jobs:
           PARSER_NO_WATCH: true
 
       - name: Codecov
+        if: matrix.os != 'windows-latest'
         run: |
           yarn global add codecov
           codecov

package.json

@@ -13,12 +13,12 @@
     "build": "run-p build:*",
     "build:r": "r -f es2015",
     "build:ts": "tsc -b",
-    "clean": "rimraf packages/*/{lib,*.tsbuildinfo} node_modules/@1stg/eslint-config/node_modules",
+    "clean": "rimraf packages/*/{lib,*.tsbuildinfo}",
     "lint": "run-p lint:*",
     "lint:es": "eslint . --cache -f friendly",
     "lint:tsc": "tsc --noEmit",
-    "postinstall": "patch-package && simple-git-hooks && yarn-deduplicate --strategy fewer || exit 0",
     "prelint": "yarn build",
+    "prepare": "patch-package && simple-git-hooks && yarn-deduplicate --strategy fewer || exit 0",
     "prerelease": "yarn build",
     "release": "lerna publish --conventional-commits --create-release github --yes",
     "release-next": "lerna publish --conventional-prerelease --preid next --pre-dist-tag next --yes",
@@ -27,16 +27,16 @@
   },
   "devDependencies": {
     "@1stg/lib-config": "^6.0.0",
-    "@types/eslint": "^8.4.1",
+    "@types/eslint": "^8.4.2",
     "@types/eslint-plugin-markdown": "^2.0.0",
-    "@types/jest": "^27.4.1",
-    "@types/node": "^17.0.29",
-    "@types/react": "^18.0.8",
+    "@types/jest": "^27.5.0",
+    "@types/node": "^17.0.31",
+    "@types/react": "^18.0.9",
     "@types/unist": "^2.0.6",
     "lerna": "^4.0.0",
     "patch-package": "^6.4.7",
     "react": "^18.1.0",
-    "ts-jest": "^28.0.0-next.3",
+    "ts-jest": "^28.0.2",
     "ts-node": "^10.7.0",
     "type-coverage": "^2.21.1",
     "typescript": "^4.6.4"
@@ -66,9 +66,6 @@
       "^eslint-mdx$": "<rootDir>/packages/eslint-mdx/src",
       "^eslint-plugin-mdx$": "<rootDir>/packages/eslint-plugin-mdx/src"
     },
-    "transform": {
-      "^.+\\.tsx?$": "ts-jest/legacy"
-    },
     "collectCoverage": true,
     "coverageThreshold": {
       "global": {

packages/eslint-mdx/package.json

@@ -34,7 +34,7 @@
     "remark-mdx": "^2.1.1",
     "remark-parse": "^10.0.1",
     "remark-stringify": "^10.0.2",
-    "synckit": "^0.7.0",
+    "synckit": "^0.7.1",
     "tslib": "^2.4.0",
     "unified": "^10.1.2"
   }

packages/eslint-mdx/src/helpers.ts

@@ -1,5 +1,7 @@
 /* eslint-disable unicorn/no-await-expression-member */
+import fs from 'fs'
 import path from 'path'
+import { pathToFileURL } from 'url'
 
 import type { SourceLocation } from 'estree'
 import { createSyncFn } from 'synckit'
@@ -64,6 +66,30 @@ export const arrayify = <T, R = T extends Array<infer S> ? S : T>(
     return arr
   }, [])
 
+/**
+ * Given a filepath, get the nearest path that is a regular file.
+ * The filepath provided by eslint may be a virtual filepath rather than a file
+ * on disk. This attempts to transform a virtual path into an on-disk path
+ */
+export const getPhysicalFilename = (
+  filename: string,
+  child?: string,
+): string => {
+  try {
+    if (fs.statSync(filename).isDirectory()) {
+      return child || filename
+    }
+  } catch (err) {
+    const { code } = err as { code: string }
+    // https://github.com/eslint/eslint/issues/11989
+    // Additionally, it seems there is no `ENOTDIR` code on Windows...
+    if (code === 'ENOTDIR' || code === 'ENOENT') {
+      return getPhysicalFilename(path.dirname(filename), filename)
+    }
+  }
+  return filename
+}
+
 /**
  * ! copied from https://github.com/just-jeb/angular-builders/blob/master/packages/custom-webpack/src/utils.ts#L53-L67
  *
@@ -91,10 +117,13 @@ export const loadEsmModule = <T>(modulePath: URL | string): Promise<T> =>
  * @returns
  */
 export const loadModule = async <T>(modulePath: string): Promise<T> => {
+  const esModulePath = path.isAbsolute(modulePath)
+    ? pathToFileURL(modulePath)
+    : modulePath
   switch (path.extname(modulePath)) {
     /* istanbul ignore next */
     case '.mjs': {
-      return (await loadEsmModule<{ default: T }>(modulePath)).default
+      return (await loadEsmModule<{ default: T }>(esModulePath)).default
     }
     /* istanbul ignore next */
     case '.cjs': {
@@ -113,7 +142,7 @@ export const loadModule = async <T>(modulePath: string): Promise<T> => {
           // Load the ESM configuration file using the TypeScript dynamic import workaround.
           // Once TypeScript provides support for keeping the dynamic import this workaround can be
           // changed to a direct dynamic import.
-          return (await loadEsmModule<{ default: T }>(modulePath)).default
+          return (await loadEsmModule<{ default: T }>(esModulePath)).default
         }
 
         throw err

packages/eslint-mdx/src/index.ts

@@ -1,5 +1,4 @@
 export * from './helpers'
 export * from './parser'
-export * from './processor'
 export * from './traverse'
 export * from './types'

packages/eslint-mdx/src/parser.ts

@@ -8,8 +8,8 @@ import {
   isMdxNode,
   normalizePosition,
   performSyncWork,
+  getPhysicalFilename,
 } from './helpers'
-import { getPhysicalFilename } from './processor'
 import { traverse } from './traverse'
 import type { ParserOptions, WorkerParseResult } from './types'
 

packages/eslint-mdx/src/worker.ts

@@ -1,6 +1,7 @@
 /* eslint-disable @typescript-eslint/consistent-type-imports */
 /* eslint-disable unicorn/no-await-expression-member */
 import path from 'path'
+import { pathToFileURL } from 'url'
 
 import type { Token } from 'acorn'
 import { cosmiconfig } from 'cosmiconfig'
@@ -207,9 +208,11 @@ runAsWorker(
     if (!TokenTranslator) {
       TokenTranslator = (
         await loadEsmModule<typeof import('espree/lib/token-translator')>(
-          path.resolve(
-            require.resolve('espree/package.json'),
-            '../lib/token-translator.js',
+          pathToFileURL(
+            path.resolve(
+              require.resolve('espree/package.json'),
+              '../lib/token-translator.js',
+            ),
           ),
         )
       ).default