fix: add yarn v2 pnp support to default webpack processor

cli/lib/util.js

@@ -280,9 +280,20 @@ const util = {
     .mapValues((value) => { // stringify to 1 or 0
       return value ? '1' : '0'
     })
+    .extend(util.getOriginalNodeOptions(options))
     .value()
   },
 
+  getOriginalNodeOptions (options) {
+    if (process.env.NODE_OPTIONS) {
+      return {
+        ORIGINAL_NODE_OPTIONS: process.env.NODE_OPTIONS,
+      }
+    }
+
+    return {}
+  },
+
   getForceTty () {
     return {
       FORCE_STDIN_TTY: util.isTty(process.stdin.fd),

cli/test/lib/util_spec.js

@@ -3,6 +3,7 @@ require('../spec_helper')
 const os = require('os')
 const tty = require('tty')
 const snapshot = require('../support/snapshot')
+const mockedEnv = require('mocked-env')
 const supportsColor = require('supports-color')
 const proxyquire = require('proxyquire')
 const hasha = require('hasha')
@@ -254,6 +255,27 @@ describe('util', () => {
     })
   })
 
+  context('.getOriginalNodeOptions', () => {
+    let restoreEnv
+
+    afterEach(() => {
+      if (restoreEnv) {
+        restoreEnv()
+        restoreEnv = null
+      }
+    })
+
+    it('copy NODE_OPTIONS to ORIGINAL_NODE_OPTIONS', () => {
+      restoreEnv = mockedEnv({
+        NODE_OPTIONS: '--require foo.js',
+      })
+
+      expect(util.getOriginalNodeOptions({})).to.deep.eq({
+        ORIGINAL_NODE_OPTIONS: '--require foo.js',
+      })
+    })
+  })
+
   context('.exit', () => {
     it('calls process.exit', () => {
       process.exit.withArgs(2).withArgs(0)

npm/webpack-batteries-included-preprocessor/index.js

@@ -59,6 +59,28 @@ const addTypeScriptConfig = (file, options) => {
   options.__typescriptSupportAdded = true
 }
 
+/**
+ * Config yarn pnp plugin for webpack 4
+ * @param {*} file file to be processed
+ * @param {*} options
+ */
+const addYarnPnpConfig = (file, options) => {
+  const { makeResolver } = require('pnp-webpack-plugin/resolver')
+  const findPnpApi = require('module').findPnpApi
+
+  if (findPnpApi && file.filePath) {
+    const pnpapi = findPnpApi(file.filePath)
+
+    if (pnpapi) {
+      const PnpPlugin = {
+        apply: makeResolver({ pnpapi }),
+      }
+
+      options.webpackOptions.resolve.plugins.push(PnpPlugin)
+    }
+  }
+}
+
 const getDefaultWebpackOptions = () => {
   return {
     mode: 'development',
@@ -125,6 +147,7 @@ const getDefaultWebpackOptions = () => {
         'repl': require.resolve('./empty'),
         'tls': require.resolve('./empty'),
       },
+      plugins: [],
     },
   }
 }
@@ -143,6 +166,11 @@ const preprocessor = (options = {}) => {
       addTypeScriptConfig(file, options)
     }
 
+    if (process.versions.pnp) {
+      // pnp path
+      addYarnPnpConfig(file, options)
+    }
+
     return webpackPreprocessor(options)(file)
   }
 }

npm/webpack-batteries-included-preprocessor/package.json

@@ -18,6 +18,7 @@
     "babel-plugin-add-module-exports": "^1.0.2",
     "coffee-loader": "^0.9.0",
     "coffeescript": "^1.12.7",
+    "pnp-webpack-plugin": "^1.7.0",
     "ts-loader": "^8.0.2",
     "tsconfig-package": "npm:tsconfig@^7.0.0",
     "tsconfig-paths-webpack-plugin": "^3.3.0",
@@ -65,4 +66,4 @@
   "publishConfig": {
     "access": "public"
   }
-}
+}

packages/server/lib/plugins/index.js

@@ -84,6 +84,10 @@ const init = (config, options) => {
     const childArguments = ['--file', pluginsFile, '--projectRoot', options.projectRoot]
     const childOptions = {
       stdio: 'pipe',
+      env: {
+        ...process.env,
+        NODE_OPTIONS: process.env.ORIGINAL_NODE_OPTIONS || '',
+      },
     }
 
     if (config.resolvedNodePath) {

packages/server/lib/util/resolve.js

@@ -1,4 +1,3 @@
-const resolve = require('resolve')
 const env = require('./env')
 const debug = require('debug')('cypress:server:plugins')
 
@@ -15,13 +14,9 @@ module.exports = {
     }
 
     try {
-      const options = {
-        basedir: projectRoot,
-      }
+      debug('resolving typescript with projectRoot %o', projectRoot)
 
-      debug('resolving typescript with options %o', options)
-
-      const resolved = resolve.sync('typescript', options)
+      const resolved = require.resolve('typescript', { paths: [projectRoot] })
 
       debug('resolved typescript %s', resolved)
 

packages/server/test/e2e/4_yarn_v2_pnp_spec.ts

@@ -0,0 +1,59 @@
+import fs from 'fs-extra'
+import os from 'os'
+import path from 'path'
+import cp from 'child_process'
+import util from 'util'
+import e2e from '../support/helpers/e2e'
+import Fixtures from '../support/helpers/fixtures'
+
+const exec = async (cmd, ...args) => {
+  console.log(`Running "${cmd}"...`)
+  const ret = await util.promisify(cp.exec)(cmd, ...args)
+  .catch((err) => {
+    console.error('Error:', err)
+
+    return err
+  })
+
+  console.log('stdout:', ret.stdout)
+  ret.stderr && console.log('stderr:', ret.stderr)
+
+  return ret
+}
+
+const fixtureDir = Fixtures.path('projects/yarn-v2-pnp')
+const cypressCli = path.join(__dirname, '../../../../cli/bin/cypress')
+
+describe('e2e yarn v2', () => {
+  let projectDir
+
+  beforeEach(async function () {
+    this.timeout(240000)
+
+    // copy yarn-v2 to tmpdir so node_modules resolution won't fall back to project root
+    projectDir = path.join(os.tmpdir(), `cy-yarn-v2-pnp-${Date.now()}`)
+    console.log(`projectDir`, projectDir)
+
+    await fs.mkdir(projectDir)
+    await fs.copy(fixtureDir, projectDir)
+
+    const projectExec = (cmd) => exec(cmd, { cwd: projectDir })
+
+    await projectExec('yarn')
+  })
+
+  e2e.it('can compile plugin and test specs', {
+    snapshot: false,
+    command: 'yarn',
+    browser: 'electron',
+    onRun: async (run) => {
+      await run({
+        args: `node ${cypressCli} run --dev --project=./`.split(' '),
+        spawnOpts: {
+          cwd: projectDir,
+          shell: true,
+        },
+      })
+    },
+  })
+})

packages/server/test/support/fixtures/projects/yarn-v2-pnp/.gitignore

@@ -0,0 +1,2 @@
+.yarn
+.pnp.js

packages/server/test/support/fixtures/projects/yarn-v2-pnp/.yarnrc.yml

@@ -0,0 +1 @@
+yarnPath: "./yarn-berry.cjs"

packages/server/test/support/fixtures/projects/yarn-v2-pnp/cypress.json

@@ -0,0 +1 @@
+{}

packages/server/test/support/fixtures/projects/yarn-v2-pnp/cypress/integration/index.ts

@@ -0,0 +1,7 @@
+import * as head from 'lodash/head'
+
+describe('yarn-v2-pnp', () => {
+  it('can load package from pnp runtime', () => {
+    expect(head([1, 2, 3])).to.equal(1)
+  })
+})

packages/server/test/support/fixtures/projects/yarn-v2-pnp/cypress/plugins/index.ts

@@ -0,0 +1,9 @@
+import * as head from 'lodash/head'
+
+// Default Cypress plugin function
+export default (on, config) => {
+  // make sure plugin can access dependencies
+  head([1, 2, 3])
+
+  return config
+}

packages/server/test/support/fixtures/projects/yarn-v2-pnp/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "yarn-v2-pnp",
+  "version": "1.0.0",
+  "dependencies": {
+    "lodash": "^4.17.21"
+  },
+  "devDependencies": {
+    "typescript": "^4.2.4"
+  },
+  "license": "MIT"
+}

packages/server/test/support/fixtures/projects/yarn-v2-pnp/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "lib": ["es5", "dom"],
+    "allowJs": true,
+    "moduleResolution": "node"
+  },
+  "include": ["**/*.ts"]
+}

packages/server/test/support/fixtures/projects/yarn-v2-pnp/yarn.lock

@@ -0,0 +1,42 @@
+# This file is generated by running "yarn install" inside your project.
+# Manual changes might be lost - proceed with caution!
+
+__metadata:
+  version: 4
+  cacheKey: 7
+
+"lodash@npm:^4.17.21":
+  version: 4.17.21
+  resolution: "lodash@npm:4.17.21"
+  checksum: 4983720b9abca930a4a46f18db163d7dad8dd00dbed6db0cc7b499b33b717cce69f80928b27bbb1ff2cbd3b19d251ee90669a8b5ea466072ca81c2ebe91e7468
+  languageName: node
+  linkType: hard
+
+typescript@^4.2.4:
+  version: 4.3.5
+  resolution: "typescript@npm:4.3.5"
+  bin:
+    tsc: bin/tsc
+    tsserver: bin/tsserver
+  checksum: d9a8e78d72dd19896e6bfa73ab2a0fcea6eca2700d1d6e7c33f67a970af54a3e0fed8f715a8c4e6a0ff7fc0995067b394b2003518ab0aa84cd396377e54b760c
+  languageName: node
+  linkType: hard
+
+"typescript@patch:typescript@^4.2.4#builtin<compat/typescript>":
+  version: 4.3.5
+  resolution: "typescript@patch:typescript@npm%3A4.3.5#builtin<compat/typescript>::version=4.3.5&hash=ddfc1b"
+  bin:
+    tsc: bin/tsc
+    tsserver: bin/tsserver
+  checksum: 7f0b8343f71ecac18095be1476b398aca420ab60dc207cc1efe078f381eef5527b80a518297720257114cdbda65612f8839e4b63e85dc95e67ac5cbbade8bdf0
+  languageName: node
+  linkType: hard
+
+"yarn-v2-pnp@workspace:.":
+  version: 0.0.0-use.local
+  resolution: "yarn-v2-pnp@workspace:."
+  dependencies:
+    lodash: ^4.17.21
+    typescript: ^4.2.4
+  languageName: unknown
+  linkType: soft

packages/server/test/support/helpers/e2e.ts

@@ -685,7 +685,7 @@ const e2e = {
       Fixtures.installStubPackage(options.project, options.stubPackage)
     }
 
-    args = ['index.js'].concat(args)
+    args = options.args || ['index.js'].concat(args)
 
     let stdout = ''
     let stderr = ''
@@ -763,7 +763,8 @@ const e2e = {
 
     return new Bluebird((resolve, reject) => {
       debug('spawning Cypress %o', { args })
-      const sp = cp.spawn('node', args, {
+      const cmd = options.command || 'node'
+      const sp = cp.spawn(cmd, args, {
         env: _.chain(process.env)
         .omit('CYPRESS_DEBUG')
         .extend({
@@ -792,6 +793,7 @@ const e2e = {
         })
         .extend(options.processEnv)
         .value(),
+        ...options.spawnOpts,
       })
 
       const ColorOutput = function () {

packages/server/test/unit/plugins/index_spec.js

@@ -1,5 +1,7 @@
 require('../../spec_helper')
 
+const _ = require('lodash')
+const mockedEnv = require('mocked-env')
 const cp = require('child_process')
 
 const util = require(`${root}../lib/plugins/util`)
@@ -94,7 +96,7 @@ describe('lib/plugins/index', () => {
           execPath: systemNode,
         }
 
-        expect(cp.fork.lastCall.args[2]).to.eql(options)
+        expect(_.omit(cp.fork.lastCall.args[2], 'env')).to.eql(options)
       })
     })
 
@@ -112,7 +114,7 @@ describe('lib/plugins/index', () => {
           stdio: 'pipe',
         }
 
-        expect(cp.fork.lastCall.args[2]).to.eql(options)
+        expect(_.omit(cp.fork.lastCall.args[2], 'env')).to.eql(options)
       })
     })
 
@@ -309,6 +311,30 @@ describe('lib/plugins/index', () => {
         })
       })
     })
+
+    describe('restore node options', () => {
+      let restoreEnv
+
+      afterEach(() => {
+        if (restoreEnv) {
+          restoreEnv()
+          restoreEnv = null
+        }
+      })
+
+      it('restore NODE_OPTIONS', () => {
+        restoreEnv = mockedEnv({
+          ORIGINAL_NODE_OPTIONS: '--require foo.js',
+        })
+
+        ipc.on.withArgs('loaded').yields([])
+
+        return plugins.init({ pluginsFile: 'cypress-plugin' }, getOptions())
+        .then(() => {
+          expect(cp.fork.lastCall.args[2].env.NODE_OPTIONS).to.eql('--require foo.js')
+        })
+      })
+    })
   })
 
   context('#register', () => {