chore(jest-haste-map): remove support for ignorePattern as function

CHANGELOG.md

@@ -14,6 +14,8 @@
 
 ### Chore & Maintenance
 
+- `[jest-haste-map]` [**BREAKING**] Remove support for deprecated option `ignorePattern` as function ([#10348](https://github.com/facebook/jest/pull/10348))
+
 ### Performance
 
 ## 26.4.2

packages/jest-haste-map/src/__tests__/index.test.js

@@ -330,19 +330,19 @@ describe('HasteMap', () => {
     });
   });
 
-  it('ignores vcs directories with ignore pattern function', () => {
-    const config = {...defaultConfig, ignorePattern: f => /Kiwi/.test(f)};
-    mockFs[path.join('/', 'project', 'fruits', 'Kiwi.js')] = `
+  it('warn on ignore pattern except for regex', () => {
+    const config = {ignorePattern: 'Kiwi', ...defaultConfig};
+    mockFs['/project/fruits/Kiwi.js'] = `
       // Kiwi!
     `;
 
-    mockFs[path.join('/', 'project', 'fruits', '.git', 'fruit-history.js')] = `
-      // test
-    `;
-    return new HasteMap(config).build().then(({hasteFS}) => {
-      expect(hasteFS.matchFiles(/Kiwi/)).toEqual([]);
-      expect(hasteFS.matchFiles('.git')).toEqual([]);
-    });
+    try {
+      new HasteMap(config).build();
+    } catch (err) {
+      expect(err.message).toBe(
+        'jest-haste-map: the `ignorePattern` option must be a RegExp',
+      );
+    }
   });
 
   it('builds a haste map on a fresh cache', () => {

packages/jest-haste-map/src/index.ts

@@ -262,14 +262,8 @@ class HasteMap extends EventEmitter {
           options.ignorePattern.flags,
         );
       } else {
-        const ignorePattern = options.ignorePattern;
-        const vcsIgnoreRegExp = new RegExp(VCS_DIRECTORIES);
-        this._options.ignorePattern = (filePath: string) =>
-          vcsIgnoreRegExp.test(filePath) || ignorePattern(filePath);
-
-        this._console.warn(
-          'jest-haste-map: the `ignorePattern` options as a function is being ' +
-            'deprecated. Provide a RegExp instead. See https://github.com/facebook/jest/pull/4063.',
+        throw new Error(
+          'jest-haste-map: the `ignorePattern` option must be a RegExp',
         );
       }
     } else {