feat(pretty-format): expose ConvertAnsi plugin

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ### Features
 
+- `[pretty-format]` Expose `ConvertAnsi` plugin ([#12308](https://github.com/facebook/jest/pull/12308))
+
 ### Fixes
 
 - `[expect]` Add type definitions for asymmetric `closeTo` matcher ([#12304](https://github.com/facebook/jest/pull/12304))

jest.config.js

@@ -35,6 +35,7 @@ module.exports = {
     escapeString: false,
   },
   snapshotSerializers: [
+    // change to require.resolve('pretty-format/ConvertAnsi') when we drop Node 10
     '<rootDir>/packages/pretty-format/build/plugins/ConvertAnsi.js',
   ],
   testPathIgnorePatterns: [

packages/pretty-format/package.json

@@ -15,7 +15,8 @@
       "types": "./build/index.d.ts",
       "default": "./build/index.js"
     },
-    "./package.json": "./package.json"
+    "./package.json": "./package.json",
+    "./ConvertAnsi": "./build/plugins/ConvertAnsi.js"
   },
   "author": "James Kyle <me@thejameskyle.com>",
   "dependencies": {

scripts/buildUtils.js

@@ -65,6 +65,9 @@ module.exports.getPackages = function getPackages() {
               './build/utils': './build/utils.js',
             }
           : {}),
+        ...(pkg.name === 'pretty-format'
+          ? {'./ConvertAnsi': './build/plugins/ConvertAnsi.js'}
+          : {}),
       },
       `Package ${pkg.name} does not export correct files`,
     );