Merge pull request backstage#13273 from backstage/rugvip/yarn3

Switch to using Yarn 3

.changeset/neat-kangaroos-turn.md

@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+Tweaked workspace packaging to not rewrite existing `package.json` files.

.dockerignore

@@ -1,4 +1,6 @@
 .git
+.yarn/cache
+.yarn/install-state.gz
 docs
 cypress
 microsite

.github/workflows/ci.yml

@@ -190,9 +190,6 @@ jobs:
         run: git diff --quiet origin/master HEAD -- yarn.lock
         continue-on-error: true
 
-      - name: lock
-        run: yarn lock:check
-
       - name: lint
         run: yarn backstage-cli repo lint --since origin/master
 

.github/workflows/deploy_docker-image.yml

@@ -56,7 +56,7 @@ jobs:
             ${{ runner.os }}-yarn-
       - name: yarn install
         if: steps.cache-modules.outputs.cache-hit != 'true'
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
       # End of yarn setup
 
       - name: create-app

.github/workflows/deploy_microsite.yml

@@ -29,12 +29,12 @@ jobs:
       # dependencies and the microsite. We leave it to the main master workflow to produce the
       # cache, as that results in a smaller bundle.
       - name: top-level yarn install
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
       - name: microsite yarn install
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
         working-directory: microsite
       - name: storybook yarn install
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
         working-directory: storybook
 
       - name: build API reference

.github/workflows/sync_version-packages.yml

@@ -14,7 +14,7 @@ jobs:
           fetch-depth: 0
           token: ${{ secrets.GH_SERVICE_ACCOUNT_TOKEN }}
       - name: Install Dependencies
-        run: yarn --frozen-lockfile
+        run: yarn --immutable
       - name: Create Release Pull Request
         uses: backstage/changesets-action@v2
         with:

.github/workflows/verify_e2e-techdocs.yml

@@ -29,7 +29,7 @@ jobs:
       - uses: actions/setup-python@v3
 
       - name: install dependencies
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
 
       - name: generate types
         run: yarn tsc

.github/workflows/verify_e2e-windows.yml

@@ -48,7 +48,7 @@ jobs:
       - name: setup chrome
         uses: browser-actions/setup-chrome@latest
       - name: yarn install
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
 
       - run: yarn tsc
       - run: yarn backstage-cli repo build

.github/workflows/verify_microsite.yml

@@ -29,17 +29,13 @@ jobs:
         # Skip caching of microsite dependencies, it keeps the global cache size
         # smaller, which make Windows builds a lot faster for the rest of the project.
       - name: yarn install
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
         working-directory: microsite
 
       - name: prettier
         run: yarn prettier:check
         working-directory: microsite
 
-      - name: lock
-        run: yarn lock:check
-        working-directory: microsite
-
       - name: build microsite
         run: yarn build
         working-directory: microsite

.github/workflows/verify_storybook.yml

@@ -39,7 +39,7 @@ jobs:
         with:
           cache-prefix: ${{ runner.os }}-v${{ matrix.node-version }}
       - name: storybook yarn install
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
         working-directory: storybook
 
       - run: yarn build-storybook

.github/workflows/verify_windows.yml

@@ -34,7 +34,7 @@ jobs:
 
       # Windows file operation slowness means there's no point caching this
       - name: yarn install
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
 
       - name: lint
         run: yarn backstage-cli repo lint

.gitignore

@@ -61,6 +61,15 @@ typings/
 # Optional npm cache directory
 .npm
 
+# Yarn 3 files
+.pnp.*
+**/.yarn/*
+!**/.yarn/patches
+!**/.yarn/plugins
+!**/.yarn/releases
+!**/.yarn/sdks
+!**/.yarn/versions
+
 # Node version directives
 .nvmrc
 

.tugboat/config.yml

@@ -10,7 +10,7 @@ services:
         - echo "yarn --cwd ${TUGBOAT_ROOT} start-backend --config ${TUGBOAT_ROOT}/app-config.yaml --config ${TUGBOAT_ROOT}/.tugboat/tugboat.app-config.production.yaml" >> /etc/service/node/run
         - chmod +x /etc/service/node/run
       build:
-        - yarn install --frozen-lockfile
+        - yarn install --immutable
         - yarn workspace example-app build
       start:
         # wget the endpoint. Will retry every 2 seconds. 30 retries = 1m for service to come up. Plenty.