chore: upgrade to fsevents 2 (jestjs#9215)

Author: SimenB

CHANGELOG.md

@@ -76,6 +76,7 @@
 - `[jest-cli]` [**BREAKING**] Remove re-exports from `@jest/core` ([#8874](https://github.com/facebook/jest/pull/8874))
 - `[jest-diff]` Remove the need to export `splitLines0` function ([#9151](https://github.com/facebook/jest/pull/9151))
 - `[jest-environment-jsdom]` [**BREAKING**] Upgrade JSDOM from v11 to v15 ([#8851](https://github.com/facebook/jest/pull/8851))
+- `[jest-haste-map]` Upgrade to `fsevents@2` ([#9215](https://github.com/facebook/jest/pull/9215))
 - `[jest-reporters]` [**BREAKING**] Upgrade Istanbul dependencies, which are used for code coverage ([#9192](https://github.com/facebook/jest/pull/9192))
 - `[jest-util]` [**BREAKING**] Remove deprecated exports ([#8863](https://github.com/facebook/jest/pull/8863))
 - `[jest-validate]` [**BREAKING**] Use ESM exports ([#8874](https://github.com/facebook/jest/pull/8874))

packages/jest-haste-map/package.json

@@ -25,14 +25,13 @@
   "devDependencies": {
     "@types/anymatch": "^1.3.1",
     "@types/fb-watchman": "^2.0.0",
-    "@types/fsevents": "^1.1.0",
     "@types/graceful-fs": "^4.1.2",
     "@types/invariant": "^2.2.29",
     "@types/micromatch": "^3.1.0",
     "@types/sane": "^2.0.0"
   },
   "optionalDependencies": {
-    "fsevents": "^1.2.9"
+    "fsevents": "^2.1.2"
   },
   "engines": {
     "node": ">= 8"

packages/jest-haste-map/src/lib/FSEventsWatcher.ts

@@ -11,10 +11,10 @@ import * as path from 'path';
 import {EventEmitter} from 'events';
 import anymatch, {Matcher} from 'anymatch';
 import micromatch = require('micromatch');
-import {Watcher} from 'fsevents';
 // @ts-ignore no types
 import walker from 'walker';
 
+// @ts-ignore: this is for CI which runs linux and might not have this
 let fsevents: typeof import('fsevents') | null = null;
 try {
   fsevents = require('fsevents');
@@ -44,7 +44,7 @@ class FSEventsWatcher extends EventEmitter {
   public readonly dot: boolean;
   public readonly hasIgnore: boolean;
   public readonly doIgnore: (path: string) => boolean;
-  public readonly watcher: Watcher;
+  public readonly fsEventsWatchStopper: () => Promise<void>;
   private _tracked: Set<string>;
 
   static isSupported() {
@@ -104,9 +104,11 @@ class FSEventsWatcher extends EventEmitter {
     this.doIgnore = opts.ignored ? anymatch(opts.ignored) : () => false;
 
     this.root = path.resolve(dir);
-    this.watcher = fsevents(this.root);
+    this.fsEventsWatchStopper = fsevents.watch(
+      this.root,
+      this.handleEvent.bind(this),
+    );
 
-    this.watcher.start().on('change', this.handleEvent.bind(this));
     this._tracked = new Set();
     FSEventsWatcher.recReaddir(
       this.root,
@@ -126,11 +128,12 @@ class FSEventsWatcher extends EventEmitter {
    * End watching.
    */
   close(callback?: () => void) {
-    this.watcher.stop();
-    this.removeAllListeners();
-    if (typeof callback === 'function') {
-      process.nextTick(callback.bind(null, null, true));
-    }
+    this.fsEventsWatchStopper().then(() => {
+      this.removeAllListeners();
+      if (typeof callback === 'function') {
+        process.nextTick(callback.bind(null, null, true));
+      }
+    });
   }
 
   private isFileIncluded(relativePath: string) {

yarn.lock

@@ -1921,13 +1921,6 @@
   dependencies:
     "@types/events" "*"
 
-"@types/fsevents@^1.1.0":
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/@types/fsevents/-/fsevents-1.1.2.tgz#31f5fcd1abc9a4c9431c03ca60bcac82ba2d05a4"
-  integrity sha512-obkdv2Yf8rnWYG2WSE5y2ZANP34HMNLAHORgB1m3AiOEA6y8kLJrJDvnTDaZxRDH0iH8mwBYKp18IeOMTYn51Q==
-  dependencies:
-    "@types/node" "*"
-
 "@types/glob@*", "@types/glob@^7.1.1":
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/@types/glob/-/glob-7.1.1.tgz#aa59a1c6e3fbc421e07ccd31a944c30eba521575"
@@ -6529,15 +6522,15 @@ fs.realpath@^1.0.0:
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
   integrity sha1-FQStJSMVjKpA20onh8sBQRmU6k8=
 
-fsevents@^1.2.3, fsevents@^1.2.7, fsevents@^1.2.9:
+fsevents@^1.2.3, fsevents@^1.2.7:
   version "1.2.9"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.2.9.tgz#3f5ed66583ccd6f400b5a00db6f7e861363e388f"
   integrity sha512-oeyj2H3EjjonWcFjD5NvZNE9Rqe4UW+nQBU2HNeKw0koVLEFIhtyETyAakeAM3de7Z/SW5kcA+fZUait9EApnw==
   dependencies:
     nan "^2.12.1"
     node-pre-gyp "^0.12.0"
 
-fsevents@~2.1.1:
+fsevents@^2.1.2, fsevents@~2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.1.2.tgz#4c0a1fb34bc68e543b4b82a9ec392bfbda840805"
   integrity sha512-R4wDiBwZ0KzpgOWetKDug1FZcYhqYnUYKtfZYt4mD5SBz76q0KR4Q9o7GIPamsVPGmW3EYPPJ0dOOjvx32ldZA==