name: React Compiler report

on:
  pull_request:

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

# Permissions are granted per-job below; anything unlisted defaults to none.
permissions: {}

jobs:
  report:
    name: React Compiler report
    runs-on: ubuntu-latest
    # Fork guard: posting the sticky comment needs pull-requests: write, which
    # the GITHUB_TOKEN of a fork-originated run never gets.
    if: ${{ github.event.pull_request.head.repo.full_name == github.repository }}
    permissions:
      contents: read
      # Needed by sticky-pull-request-comment to post the report.
      pull-requests: write
    steps:
      - name: ⬇️ Check out Git repository
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      - uses: pnpm/action-setup@0977fd99725f1db4007ccb2928dbb4e90d06cc86 # v6.0.10
      - name: 🔧 Install node
        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: package.json
          cache: pnpm
      - name: 📦 pnpm install
        run: pnpm install --frozen-lockfile
      - name: ⬇️ Check out base commit for comparison
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha }}
        run: |
          git fetch --depth=1 origin "$BASE_SHA"
          git worktree add --detach "$RUNNER_TEMP/base" "$BASE_SHA"
      - name: ⚛️ Snapshot React Compiler results on base
        env:
          REACT_COMPILER_SRC_ROOT: ${{ runner.temp }}/base
          REACT_COMPILER_SNAPSHOT_PATH: ${{ runner.temp }}/base-snapshot.json
          # The base run is only for the snapshot - keep its report out of the
          # job summary, which the PR run below writes.
          GITHUB_STEP_SUMMARY: ''
        run: pnpm react-compiler:report > /dev/null
      - name: ⚛️ Generate React Compiler report
        env:
          REACT_COMPILER_REPORT_PATH: ${{ runner.temp }}/react-compiler-report.md
          REACT_COMPILER_BASE_SNAPSHOT_PATH: ${{ runner.temp }}/base-snapshot.json
        run: pnpm react-compiler:report
      - name: 💬 Drop a comment
        uses: marocchino/sticky-pull-request-comment@5770ad5eb8f42dd2c4f34da00c94c5381e49af88 # v3.0.5
        with:
          header: react-compiler-report
          path: ${{ runner.temp }}/react-compiler-report.md