refactor: extract realpath native into a separate module

packages/jest-cli/package.json

@@ -28,6 +28,7 @@
     "jest-worker": "^21.2.1",
     "micromatch": "^2.3.11",
     "node-notifier": "^5.1.2",
+    "realpath-native": "^1.0.0",
     "rimraf": "^2.5.4",
     "slash": "^1.0.0",
     "string-length": "^2.0.0",

packages/jest-cli/src/cli/index.js

@@ -15,7 +15,6 @@ import {
   Console,
   clearLine,
   createDirectory,
-  realpath,
   validateCLIOptions,
 } from 'jest-util';
 import {readConfig} from 'jest-config';
@@ -34,6 +33,7 @@ import TestWatcher from '../test_watcher';
 import watch from '../watch';
 import yargs from 'yargs';
 import rimraf from 'rimraf';
+import {sync as realpath} from 'realpath-native';
 
 export async function run(maybeArgv?: Argv, project?: Path) {
   try {

packages/jest-runtime/package.json

@@ -21,6 +21,7 @@
     "jest-util": "^21.2.1",
     "json-stable-stringify": "^1.0.1",
     "micromatch": "^2.3.11",
+    "realpath-native": "^1.0.0",
     "slash": "^1.0.0",
     "strip-bom": "3.0.0",
     "write-file-atomic": "^2.1.0",

packages/jest-runtime/src/script_transformer.js

@@ -17,7 +17,7 @@ import type {
 import crypto from 'crypto';
 import path from 'path';
 import vm from 'vm';
-import {createDirectory, realpath} from 'jest-util';
+import {createDirectory} from 'jest-util';
 import fs from 'graceful-fs';
 import {transform as babelTransform} from 'babel-core';
 import babelPluginIstanbul from 'babel-plugin-istanbul';
@@ -28,6 +28,7 @@ import slash from 'slash';
 import {version as VERSION} from '../package.json';
 import shouldInstrument from './should_instrument';
 import writeFileAtomic from 'write-file-atomic';
+import {sync as realpath} from 'realpath-native';
 
 export type Options = {|
   collectCoverage: boolean,

packages/jest-util/src/index.js

@@ -8,7 +8,6 @@
  */
 
 import mkdirp from 'mkdirp';
-import fs from 'fs';
 
 import BufferedConsole from './buffered_console';
 import clearLine from './clear_line';
@@ -32,15 +31,6 @@ const createDirectory = (path: string) => {
   }
 };
 
-const realpath = (filepath: string) => {
-  if (typeof fs.realpathSync.native === 'function') {
-    return fs.realpathSync.native(filepath);
-  }
-
-  // $FlowFixMe: This is need for node@<9.2
-  return process.binding('fs').realpath(filepath, 'utf8');
-};
-
 module.exports = {
   BufferedConsole,
   Console,
@@ -52,7 +42,6 @@ module.exports = {
   getConsoleOutput,
   installCommonGlobals,
   isInteractive,
-  realpath,
   setGlobal,
   validateCLIOptions,
 };

yarn.lock

@@ -2633,6 +2633,16 @@ errorhandler@~1.4.2:
     accepts "~1.3.0"
     escape-html "~1.0.3"
 
+es-abstract@^1.5.1:
+  version "1.10.0"
+  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.10.0.tgz#1ecb36c197842a00d8ee4c2dfd8646bb97d60864"
+  dependencies:
+    es-to-primitive "^1.1.1"
+    function-bind "^1.1.1"
+    has "^1.0.1"
+    is-callable "^1.1.3"
+    is-regex "^1.0.4"
+
 es-abstract@^1.6.1, es-abstract@^1.7.0:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.9.0.tgz#690829a07cae36b222e7fd9b75c0d0573eb25227"
@@ -5369,6 +5379,13 @@ object.entries@^1.0.4:
     function-bind "^1.1.0"
     has "^1.0.1"
 
+object.getownpropertydescriptors@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.0.3.tgz#8758c846f5b407adab0f236e0986f14b051caa16"
+  dependencies:
+    define-properties "^1.1.2"
+    es-abstract "^1.5.1"
+
 object.omit@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/object.omit/-/object.omit-2.0.1.tgz#1a9c744829f39dbb858c76ca3579ae2a54ebd1fa"
@@ -6139,6 +6156,12 @@ readdirp@^2.0.0:
     readable-stream "^2.0.2"
     set-immediate-shim "^1.0.1"
 
+realpath-native@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/realpath-native/-/realpath-native-1.0.0.tgz#7885721a83b43bd5327609f0ddecb2482305fdf0"
+  dependencies:
+    util.promisify "^1.0.0"
+
 rechoir@^0.6.2:
   version "0.6.2"
   resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
@@ -7392,6 +7415,13 @@ [email protected], util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
 
+util.promisify@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/util.promisify/-/util.promisify-1.0.0.tgz#440f7165a459c9a16dc145eb8e72f35687097030"
+  dependencies:
+    define-properties "^1.1.2"
+    object.getownpropertydescriptors "^2.0.3"
+
 [email protected], util@~0.10.1:
   version "0.10.3"
   resolved "https://registry.yarnpkg.com/util/-/util-0.10.3.tgz#7afb1afe50805246489e3db7fe0ed379336ac0f9"