[Draft] feat: test Yarn v6

.ado/azure-pipelines.publish.yml

@@ -65,16 +65,21 @@ extends:
                   version: '22.x'
                 displayName: 'Use Node.js 22.x'
 
+              - script: |
+                  curl -s https://repo.yarnpkg.com/install | bash
+                  echo "##vso[task.prependpath]$(HOME)/.yarn/switch/bin"
+                displayName: 'Install Yarn Switch'
+
               - script: |
                   yarn
                 displayName: 'yarn install'
 
               - script: |
-                  yarn lage buildci
+                  yarn buildci
                 displayName: 'yarn buildci [build + test + lint]'
 
               - script: |
-                  yarn lage pack --verbose --grouped
+                  yarn tasks run pack
                 displayName: 'Pack all public packages'
 
               - script: |
@@ -104,6 +109,11 @@ extends:
                   version: '22.x'
                 displayName: 'Use Node.js 22.x'
 
+              - script: |
+                  curl -s https://repo.yarnpkg.com/install | bash
+                  echo "##vso[task.prependpath]$(HOME)/.yarn/switch/bin"
+                displayName: 'Install Yarn Switch'
+
               - task: DownloadPipelineArtifact@2
                 inputs:
                   artifactName: packed-tarballs
@@ -129,7 +139,7 @@ extends:
               - script: |
                   # https://github.com/changesets/changesets/issues/432
                   # We can't use `changeset publish` because it doesn't support workspaces, so we have to publish each package individually
-                  yarn lage publish --verbose --grouped --reporter azureDevops
+                  yarn tasks run publish
                 displayName: 'Publish NPM Packages'
 
               - script: |

.github/actions/setup-toolchain/action.yml

@@ -0,0 +1,40 @@
+name: Set up toolchain
+description: Sets up Node.js, platform-specific tools, and Yarn Switch
+
+inputs:
+  platform:
+    description: Target platform (android, ios, macos, windows)
+    required: false
+    default: ''
+  node-version:
+    description: Node.js version to use
+    required: false
+    default: '22'
+  xcode-developer-dir:
+    description: Path to Xcode developer directory (macOS only)
+    required: false
+    default: ''
+
+runs:
+  using: composite
+  steps:
+    - name: Set up toolchain
+      uses: microsoft/react-native-test-app/.github/actions/setup-toolchain@5.0.14
+      with:
+        platform: ${{ inputs.platform }}
+        node-version: ${{ inputs.node-version }}
+        xcode-developer-dir: ${{ inputs.xcode-developer-dir }}
+
+    - name: Install Yarn Switch
+      if: runner.os != 'Windows'
+      shell: bash
+      run: |
+        curl -s https://repo.yarnpkg.com/install | bash
+        echo "$HOME/.yarn/switch/bin" >> $GITHUB_PATH
+
+    - name: Install Yarn Switch (Windows)
+      if: runner.os == 'Windows'
+      shell: bash
+      run: |
+        curl -s https://repo.yarnpkg.com/install | bash
+        echo "$HOME/.yarn/switch/bin" >> $GITHUB_PATH

.github/workflows/pr.yml

@@ -20,15 +20,15 @@ jobs:
           fetch-depth: 0
 
       - name: Set up toolchain
-        uses: microsoft/react-native-test-app/.github/actions/setup-toolchain@5.0.14
+        uses: ./.github/actions/setup-toolchain
         with:
           node-version: 22
 
       - name: Install dependencies
         run: yarn
 
       - name: Build CI
-        run: yarn lage buildci
+        run: yarn buildci
 
   android:
     name: Android PR
@@ -39,7 +39,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up toolchain
-        uses: microsoft/react-native-test-app/.github/actions/setup-toolchain@5.0.14
+        uses: ./.github/actions/setup-toolchain
         with:
           platform: android
           node-version: 22
@@ -69,7 +69,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up toolchain
-        uses: microsoft/react-native-test-app/.github/actions/setup-toolchain@5.0.14
+        uses: ./.github/actions/setup-toolchain
         with:
           platform: macos
           node-version: 22
@@ -124,7 +124,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up toolchain
-        uses: microsoft/react-native-test-app/.github/actions/setup-toolchain@5.0.14
+        uses: ./.github/actions/setup-toolchain
         with:
           platform: ios
           node-version: 22
@@ -172,7 +172,7 @@ jobs:
           fetch-depth: 5
 
       - name: Set up toolchain
-        uses: microsoft/react-native-test-app/.github/actions/setup-toolchain@5.0.14
+        uses: ./.github/actions/setup-toolchain
         with:
           platform: windows
           node-version: 22
@@ -228,7 +228,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up toolchain
-        uses: microsoft/react-native-test-app/.github/actions/setup-toolchain@5.0.14
+        uses: ./.github/actions/setup-toolchain
         with:
           platform: windows
           node-version: 22
@@ -280,17 +280,13 @@ jobs:
           filter: blob:none
           fetch-depth: 0
 
-      - name: Setup Node.js
-        uses: actions/setup-node@v6
+      - name: Set up toolchain
+        uses: ./.github/actions/setup-toolchain
         with:
           node-version: '22'
-          cache: 'yarn'
-
-      - name: Enable Corepack
-        run: corepack enable
 
       - name: Install dependencies
-        run: yarn install --immutable
+        run: yarn
 
       - name: Validate changesets
         run: yarn change:check
@@ -306,7 +302,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up toolchain
-        uses: microsoft/react-native-test-app/.github/actions/setup-toolchain@5.0.14
+        uses: ./.github/actions/setup-toolchain
         with:
           node-version: 22
 
@@ -317,7 +313,7 @@ jobs:
         run: yarn build
 
       - name: Pack packages
-        run: yarn lage pack --verbose --grouped
+        run: yarn tasks run pack
 
       - name: List packed tarballs
         id: check
@@ -347,7 +343,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up toolchain
-        uses: microsoft/react-native-test-app/.github/actions/setup-toolchain@5.0.14
+        uses: ./.github/actions/setup-toolchain
         with:
           node-version: 22
 
@@ -361,7 +357,7 @@ jobs:
           path: _packed/
 
       - name: Simulate publish
-        run: yarn lage publish:dry-run --verbose --grouped
+        run: yarn tasks run publish-dry-run
 
   test-links:
     name: Test repo links
@@ -372,7 +368,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up toolchain
-        uses: microsoft/react-native-test-app/.github/actions/setup-toolchain@5.0.14
+        uses: ./.github/actions/setup-toolchain
         with:
           node-version: 22
 

.gitignore

@@ -113,7 +113,6 @@ apps/*/.vscode/.react/
 **/.yarn/*
 !**/.yarn/patches
 !**/.yarn/plugins
-!**/.yarn/releases
 !**/.yarn/sdks
 !**/.yarn/versions
 

.mise.toml

@@ -0,0 +1,3 @@
+[tools]
+node = "22"
+yarn = "6.0.0-rc.15"