Migrate from Yarn Classic to Yarn Berry

.gitattributes

@@ -0,0 +1,4 @@
+/.yarn/**            linguist-vendored
+/.yarn/releases/*    binary
+/.yarn/plugins/**/*  binary
+/.pnp.*              binary linguist-generated

.github/workflows/high-depends.yml

@@ -25,6 +25,8 @@ jobs:
                 with:
                     node-version: ${{matrix.node-versions}}
 
+            -   run: corepack enable
+
             -   name: Remove Lock File
                 run: rm yarn.lock
 

.github/workflows/low-depends.yml

@@ -25,6 +25,8 @@ jobs:
                 with:
                     node-version: ${{matrix.node-versions}}
 
+            -   run: corepack enable
+
             -   name: Remove Lock File
                 run: rm yarn.lock
 

.github/workflows/stable-tests.yml

@@ -25,6 +25,8 @@ jobs:
                 with:
                     node-version: ${{matrix.node-versions}}
 
+            -   run: corepack enable
+
             -   name: Install Yarn Dependencies
                 run: yarn install
 

.github/workflows/testing_apps.yml

@@ -97,6 +97,8 @@ jobs:
           with:
             node-version: '22'
 
+      -   run: corepack enable
+
       -   if: ${{ contains(matrix.app.name, 'pnpm') }}
           name: Install pnpm
           uses: pnpm/action-setup@v4

.gitignore

@@ -1,3 +1,13 @@
-node_modules/
-npm-debug.log*
+# https://yarnpkg.com/getting-started/qa#which-files-should-be-gitignored
+.yarn/*
+!.yarn/cache
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions
+
+node_modules
+yarn-error.log
+
 /test_tmp

.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

package.json

@@ -3,6 +3,7 @@
   "version": "4.7.0",
   "description": "Webpack Encore is a simpler way to integrate Webpack into your application",
   "main": "index.js",
+  "packageManager": "[email protected]",
   "scripts": {
     "test": "yarn run test:main && yarn run test:persistent-cache",
     "test:main": "mocha --reporter spec test --recursive --ignore test/persistent-cache/*",
@@ -223,6 +224,5 @@
     "lib/",
     "bin/",
     "index.js"
-  ],
-  "packageManager": "[email protected]+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e"
+  ]
 }