chore: test yarn modern

.github/actions/run-publish-vr-screenshot/action.yml

@@ -38,7 +38,7 @@ runs:
         cache: 'yarn'
         node-version: '20'
 
-    - run: yarn install --frozen-lockfile
+    - run: yarn install --immutable
       shell: bash
 
     - run: yarn playwright install --with-deps

.github/workflows/bundle-size-base.yml

@@ -31,7 +31,7 @@ jobs:
           cache: 'yarn'
           node-version: '22'
 
-      - run: yarn install --frozen-lockfile
+      - run: yarn install --immutable
 
       - name: Build all packages & create reports (non-PR)
         run: yarn nx run-many -t bundle-size --nxBail

.github/workflows/bundle-size.yml

@@ -39,7 +39,7 @@ jobs:
 
       - run: echo number of CPUs "$(getconf _NPROCESSORS_ONLN)"
 
-      - run: yarn install --frozen-lockfile
+      - run: yarn install --immutable
 
       - name: Build packages & create reports
         run: yarn nx affected -t bundle-size --nxBail

.github/workflows/check-packages.yml

@@ -27,7 +27,7 @@ jobs:
         run: |
           echo "yarn.lock changed! Verifying package deduplication ..."
 
-          yarn run dedupe --list --fail
+          yarn run dedupe --check
 
           if [[ $? -ne 0 ]]; then
             echo "Your changes introduced package duplication 🚨"

.github/workflows/check-tooling.yml

@@ -28,7 +28,7 @@ jobs:
         with:
           node-version: '22'
 
-      - run: yarn install --frozen-lockfile
+      - run: yarn install --immutable
 
       - run: yarn nx run scripts-executors:test -t 'smoke test'
 

.github/workflows/copilot-setup-steps.yml

@@ -29,4 +29,4 @@ jobs:
           cache: 'yarn'
           node-version: '22'
 
-      - run: yarn install --frozen-lockfile
+      - run: yarn install --immutable

.github/workflows/docsite-publish-ghpages.yml

@@ -29,7 +29,7 @@ jobs:
           cache: 'yarn'
 
       - name: Install packages
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
 
       - name: Install Playwright Browsers
         run: yarn playwright install --with-deps

.github/workflows/pr-vrt.yml

@@ -40,7 +40,7 @@ jobs:
           cache: 'yarn'
           node-version: '22'
 
-      - run: yarn install --frozen-lockfile
+      - run: yarn install --immutable
       - run: yarn playwright install --with-deps
 
       - name: Run VR tests (generate screenshots)

.github/workflows/pr-website-deploy.yml

@@ -41,7 +41,7 @@ jobs:
       - name: NodeJS heap default size
         run: node -e 'console.log(v8.getHeapStatistics().heap_size_limit / 1024 / 1024 + " MB");'
 
-      - run: yarn install --frozen-lockfile
+      - run: yarn install --immutable
 
       - name: Install Playwright Browsers
         run: yarn playwright install --with-deps

.github/workflows/pr.yml

@@ -23,8 +23,9 @@ env:
 
 jobs:
   main:
-    if: ${{ github.repository_owner == 'microsoft' }}
-    runs-on: macos-14-xlarge
+    # if: ${{ github.repository_owner == 'microsoft' }}
+    # runs-on: macos-14-xlarge
+    runs-on: ubuntu-latest
     permissions:
       contents: 'read'
       actions: 'read'
@@ -46,7 +47,10 @@ jobs:
 
       - run: echo number of CPUs "$(getconf _NPROCESSORS_ONLN)"
 
-      - run: yarn install --frozen-lockfile
+      - run: yarn install --immutable
+
+      - name: 'Check duplicates in yarn.lock'
+        run: yarn run dedupe --check --json
 
       - name: Workspace lint
         run: |
@@ -156,7 +160,7 @@ jobs:
 
       - run: echo number of CPUs "$(getconf _NPROCESSORS_ONLN)"
 
-      - run: yarn install --frozen-lockfile
+      - run: yarn install --immutable
 
       - name: Install Playwright dependencies
         run: yarn playwright install --with-deps

.github/workflows/vrt-baseline.yml

@@ -30,7 +30,7 @@ jobs:
           cache: 'yarn'
           node-version: '22'
 
-      - run: yarn install --frozen-lockfile
+      - run: yarn install --immutable
       - run: yarn playwright install --with-deps
 
       - name: Run VR tests (generate screenshots)

.gitignore

@@ -47,6 +47,13 @@ $RECYCLE.BIN/
 dist.stats.json
 bower_components
 node_modules
+
+# Yarn (ignore everything except patches, plugins, and releases)
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+
 temp
 tmp
 lib