.github/workflows/verify-yarn-lock.yml


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name: Verify yarn.lock

on:
  pull_request:
concurrency:
  group: '${{ github.workflow }}-${{ github.head_ref || github.ref }}'
  cancel-in-progress: true

jobs:
  verify-yarn-lock:
    name: Verify yarn.lock changes
    runs-on: ubuntu-latest
    steps:
      - name: Check out Git repository
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
      - name: Install node
        uses: actions/setup-node@v4
        with:
          node-version-file: .nvmrc
      - name: Verify yarn.lock
        uses: Wandalen/wretry.action@master
        with:
          command: |
            git show "${{ github.base_ref }}:yarn.lock" > yarn.lock
            yarn
            git diff --quiet --exit-code || {
              echo '::error::`yarn.lock` does not match what Yarn would generate given the base `yarn.lock` and the head `package.json`.'
              echo '::error::1. If this is intentional, you can ignore this check.'
              echo '::error::2. If this is not intentional, apply the following diff:'
              echo '```diff'
              git --no-pager diff -R
              echo '```'
              exit 1
            }
          attempt_limit: 3
          attempt_delay: 2000