fix: use graceful-fs all over instead of monkey patching fs

.eslintrc.js

@@ -142,6 +142,13 @@ module.exports = {
     // https://github.com/benmosher/eslint-plugin-import/issues/645
     'import/order': 0,
     'no-console': 0,
+    'no-restricted-imports': [
+      2,
+      {
+        message: 'Please use graceful-fs instead.',
+        name: 'fs',
+      },
+    ],
     'no-unused-vars': 2,
     'prettier/prettier': 2,
     'sort-imports': [2, {ignoreDeclarationSort: true}],

CHANGELOG.md

@@ -8,6 +8,7 @@
 
 ### Fixes
 
+- `[*]` Use `graceful-fs` directly in every package instead of relying on `fs` being monkey patched ([#9443](https://github.com/facebook/jest/pull/9443))
 - `[expect]` Prints the Symbol name into the error message with a custom asymmetric matcher ([#9888](https://github.com/facebook/jest/pull/9888))
 - `[jest-circus, jest-jasmine2]` Support older version of `jest-runtime` ([#9903](https://github.com/facebook/jest/pull/9903) & [#9842](https://github.com/facebook/jest/pull/9842))
 - `[@jest/environment]` Make sure not to reference Jest types ([#9875](https://github.com/facebook/jest/pull/9875))
@@ -45,8 +46,6 @@
 - `[*]` Do not generate TypeScript declaration source maps ([#9822](https://github.com/facebook/jest/pull/9822))
 - `[*]` Transpile code for Node 8.3, not 8.0 ([#9827](https://github.com/facebook/jest/pull/9827))
 
-### Performance
-
 ## 25.3.0
 
 ### Features
@@ -276,8 +275,6 @@
 - `[jest-types]` Mark `InitialOptions` as `Partial` ([#8848](https://github.com/facebook/jest/pull/8848))
 - `[jest-config]` Refactor `normalize` to be more type safe ([#8848](https://github.com/facebook/jest/pull/8848))
 
-### Performance
-
 ## 24.9.0
 
 ### Features

e2e/Utils.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import type {Config} from '@jest/types';
 
 // eslint-disable-next-line import/named

e2e/__tests__/clearCache.test.ts

@@ -5,9 +5,9 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import {tmpdir} from 'os';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import runJest from '../runJest';
 
 const CACHE = path.resolve(tmpdir(), 'clear-cache-directory');

e2e/__tests__/coverageHandlebars.test.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import {readFileSync} from 'fs';
 import * as path from 'path';
+import {readFileSync} from 'graceful-fs';
 import wrap from 'jest-snapshot-serializer-raw';
 import {cleanup, run} from '../Utils';
 import runJest from '../runJest';

e2e/__tests__/coverageRemapping.test.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import {readFileSync} from 'fs';
 import * as path from 'path';
+import {readFileSync} from 'graceful-fs';
 import {cleanup, run} from '../Utils';
 import runJest from '../runJest';
 

e2e/__tests__/coverageReport.test.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import {wrap} from 'jest-snapshot-serializer-raw';
 import {extractSummary, run} from '../Utils';
 import runJest from '../runJest';

e2e/__tests__/coverageTransformInstrumented.test.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import {readFileSync} from 'fs';
 import * as path from 'path';
+import {readFileSync} from 'graceful-fs';
 import {cleanup, run} from '../Utils';
 import runJest from '../runJest';
 

e2e/__tests__/globalSetup.test.ts

@@ -5,9 +5,9 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import {tmpdir} from 'os';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import runJest, {json as runWithJson} from '../runJest';
 import {cleanup, run} from '../Utils';
 

e2e/__tests__/globalTeardown.test.ts

@@ -5,9 +5,9 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import {tmpdir} from 'os';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import {createDirectory} from 'jest-util';
 import runJest, {json as runWithJson} from '../runJest';
 import {cleanup, run} from '../Utils';

e2e/__tests__/jsonReporter.test.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import type {FormattedTestResults} from '@jest/test-result';
 import runJest from '../runJest';
 

e2e/__tests__/setupFilesAfterEnvConfig.test.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import {json as runWithJson} from '../runJest';
 import {writeFiles} from '../Utils';
 

e2e/__tests__/snapshot.test.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import {wrap} from 'jest-snapshot-serializer-raw';
 import {extractSummary} from '../Utils';
 import runJest, {json as runWithJson} from '../runJest';

e2e/__tests__/snapshotResolver.test.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import runJest from '../runJest';
 
 const snapshotDir = path.resolve(

e2e/__tests__/testEnvironmentAsync.test.ts

@@ -5,9 +5,9 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
 import {tmpdir} from 'os';
+import * as fs from 'graceful-fs';
 import runJest from '../runJest';
 import {cleanup} from '../Utils';
 

e2e/__tests__/testRetries.test.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import {skipSuiteOnJasmine} from '@jest/test-utils';
 import runJest from '../runJest';
 

e2e/__tests__/toMatchInlineSnapshot.test.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import {wrap} from 'jest-snapshot-serializer-raw';
 import {cleanup, makeTemplate, writeFiles} from '../Utils';
 import runJest from '../runJest';
@@ -256,6 +256,7 @@ test('handles mocking native modules prettier relies on', () => {
   const test = `
     jest.mock('path', () => ({}));
     jest.mock('fs', () => ({}));
+    jest.mock('graceful-fs', () => ({}));
     test('inline snapshots', () => {
       expect({}).toMatchInlineSnapshot();
     });

e2e/__tests__/toMatchSnapshotWithStringSerializer.test.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import {cleanup, makeTemplate, writeFiles} from '../Utils';
 import runJest from '../runJest';
 

e2e/__tests__/toThrowErrorMatchingInlineSnapshot.test.ts

@@ -6,7 +6,7 @@
  */
 
 import * as path from 'path';
-import * as fs from 'fs';
+import * as fs from 'graceful-fs';
 import {wrap} from 'jest-snapshot-serializer-raw';
 import {cleanup, makeTemplate, writeFiles} from '../Utils';
 import runJest from '../runJest';

e2e/__tests__/toThrowErrorMatchingSnapshot.test.ts

@@ -6,7 +6,7 @@
  */
 
 import * as path from 'path';
-import * as fs from 'fs';
+import * as fs from 'graceful-fs';
 import {wrap} from 'jest-snapshot-serializer-raw';
 import {cleanup, makeTemplate, writeFiles} from '../Utils';
 import runJest from '../runJest';

e2e/native-esm/__tests__/native-esm.test.js

@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// the point here is that it's the node core module
+// eslint-disable-next-line no-restricted-imports
 import {readFileSync} from 'fs';
 import {createRequire} from 'module';
 import {dirname, resolve} from 'path';

e2e/runJest.ts

@@ -7,8 +7,8 @@
  */
 
 import * as path from 'path';
-import * as fs from 'fs';
 import {Writable} from 'stream';
+import * as fs from 'graceful-fs';
 import execa = require('execa');
 import type {Config} from '@jest/types';
 import type {FormattedTestResults} from '@jest/test-result';

package.json

@@ -49,7 +49,7 @@
     "find-process": "^1.4.1",
     "glob": "^7.1.1",
     "globby": "^10.0.2",
-    "graceful-fs": "^4.2.3",
+    "graceful-fs": "^4.2.4",
     "isbinaryfile": "^4.0.0",
     "istanbul-lib-coverage": "^3.0.0",
     "istanbul-lib-report": "^3.0.0",

packages/babel-jest/package.json

@@ -24,10 +24,12 @@
     "babel-plugin-istanbul": "^6.0.0",
     "babel-preset-jest": "^25.4.0",
     "chalk": "^3.0.0",
+    "graceful-fs": "^4.2.4",
     "slash": "^3.0.0"
   },
   "devDependencies": {
-    "@babel/core": "^7.1.0"
+    "@babel/core": "^7.1.0",
+    "@types/graceful-fs": "^4.1.3"
   },
   "peerDependencies": {
     "@babel/core": "^7.0.0"

packages/babel-jest/src/index.ts

@@ -6,8 +6,8 @@
  */
 
 import {createHash} from 'crypto';
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import type {
   TransformOptions as JestTransformOptions,
   Transformer,

packages/jest-circus/package.json

@@ -41,8 +41,10 @@
     "@jest/test-utils": "^25.3.0",
     "@types/babel__traverse": "^7.0.4",
     "@types/co": "^4.6.0",
+    "@types/graceful-fs": "^4.1.3",
     "@types/stack-utils": "^1.0.1",
-    "execa": "^3.2.0"
+    "execa": "^3.2.0",
+    "graceful-fs": "^4.2.4"
   },
   "engines": {
     "node": ">= 8.3"

packages/jest-circus/src/__mocks__/testUtils.ts

@@ -5,10 +5,10 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import {tmpdir} from 'os';
 import * as path from 'path';
 import {createHash} from 'crypto';
+import * as fs from 'graceful-fs';
 // eslint-disable-next-line import/named
 import {ExecaSyncReturnValue, sync as spawnSync} from 'execa';
 import {skipSuiteOnWindows} from '@jest/test-utils';

packages/jest-cli/package.json

@@ -17,6 +17,7 @@
     "@jest/types": "^25.4.0",
     "chalk": "^3.0.0",
     "exit": "^0.1.2",
+    "graceful-fs": "^4.2.4",
     "import-local": "^3.0.2",
     "is-ci": "^2.0.0",
     "jest-config": "^25.4.0",
@@ -30,6 +31,7 @@
     "@jest/test-utils": "^25.3.0",
     "@types/exit": "^0.1.30",
     "@types/is-ci": "^2.0.0",
+    "@types/graceful-fs": "^4.1.3",
     "@types/prompts": "^2.0.1",
     "@types/yargs": "^15.0.0"
   },

packages/jest-cli/src/init/__tests__/init.test.js

@@ -6,8 +6,8 @@
  */
 
 /* eslint-disable no-eval */
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import prompts from 'prompts';
 import {constants} from 'jest-config';
 import init from '../';
@@ -19,7 +19,7 @@ jest.mock('../../../../jest-config/build/getCacheDirectory', () => () =>
   '/tmp/jest',
 );
 jest.mock('path', () => ({...jest.requireActual('path'), sep: '/'}));
-jest.mock('fs', () => ({
+jest.mock('graceful-fs', () => ({
   ...jest.requireActual('fs'),
   writeFileSync: jest.fn(),
 }));

packages/jest-cli/src/init/index.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import chalk = require('chalk');
 import prompts = require('prompts');
 import {sync as realpath} from 'realpath-native';

packages/jest-config/package.json

@@ -24,6 +24,7 @@
     "chalk": "^3.0.0",
     "deepmerge": "^4.2.2",
     "glob": "^7.1.1",
+    "graceful-fs": "^4.2.4",
     "jest-environment-jsdom": "^25.4.0",
     "jest-environment-node": "^25.4.0",
     "jest-get-type": "^25.2.6",
@@ -39,6 +40,7 @@
   "devDependencies": {
     "@types/babel__core": "^7.0.4",
     "@types/glob": "^7.1.1",
+    "@types/graceful-fs": "^4.1.3",
     "@types/micromatch": "^4.0.0"
   },
   "engines": {

packages/jest-config/src/__tests__/normalize.test.js

@@ -19,7 +19,7 @@ const DEFAULT_CSS_PATTERN = '^.+\\.(css)$';
 jest
   .mock('jest-resolve')
   .mock('path', () => jest.requireActual('path').posix)
-  .mock('fs', () => {
+  .mock('graceful-fs', () => {
     const realFs = jest.requireActual('fs');
 
     return {

packages/jest-config/src/index.ts

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
+import * as fs from 'graceful-fs';
 import type {Config} from '@jest/types';
 import chalk = require('chalk');
 import {sync as realpath} from 'realpath-native';

packages/jest-config/src/normalize.ts

@@ -6,8 +6,8 @@
  */
 
 import {createHash} from 'crypto';
-import {statSync} from 'fs';
 import * as path from 'path';
+import {statSync} from 'graceful-fs';
 import {sync as glob} from 'glob';
 import type {Config} from '@jest/types';
 import {ValidationError, validate} from 'jest-validate';