performance-report.yml

name: Performance Report

on:
  pull_request_target:
    types:
      - synchronize
      - opened
      - reopened
      - labeled

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  build-artefacts:
    if: ${{ github.event.pull_request.head.repo.full_name == 'rollup/rollup' || contains( toJson(github.event.pull_request.labels), 'x⁸ ⚙️ build repl artefacts' ) }}
    strategy:
      matrix:
        settings:
          - name: current
            ref: refs/pull/${{ github.event.number }}/merge
          - name: previous
            ref: ${{github.event.pull_request.base.ref}}
    name: Build ${{matrix.settings.name}} artefact
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Commit
        uses: actions/checkout@v4
        with:
          ref: ${{matrix.settings.ref}}
      - name: Install Toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: stable
          targets: x86_64-unknown-linux-gnu
      - name: Cache cargo
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            .cargo-cache
            rust/target/
          key: cargo-cache-${{ hashFiles('rust/Cargo.lock') }}
          restore-keys: cargo-cache
      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: 18
      - name: Cache Node Modules
        id: cache-node-modules
        uses: actions/cache@v4
        with:
          path: node_modules
          key: node-modules-${{ runner.os }}-${{ hashFiles('package-lock.json') }}
      - name: Install dependencies
        if: steps.cache-node-modules.outputs.cache-hit != 'true'
        run: npm ci --ignore-scripts
      - name: Build artefacts 123
        run: npm exec -- concurrently -c green,blue 'npm:build:napi -- --release' 'npm:build:cjs' && npm run build:copy-native && npm run build:bootstrap:cjs && npm run build:copy-native
      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.settings.name }}
          path: dist/
          if-no-files-found: error

  report:
    needs: build-artefacts
    permissions:
      pull-requests: write # for peter-evans/find-comment and peter-evans/create-or-update-comment
    runs-on: ubuntu-latest
    name: Report Performance
    steps:
      - name: Checkout Commit
        uses: actions/checkout@v4
        with:
          ref: refs/pull/${{ github.event.number }}/merge
      - name: Install Toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: stable
          targets: x86_64-unknown-linux-gnu
      - name: Cache cargo
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            .cargo-cache
            rust/target/
          key: cargo-cache-${{ hashFiles('rust/Cargo.lock') }}
          restore-keys: cargo-cache
      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: 18
      - name: Cache Node Modules
        id: cache-node-modules
        uses: actions/cache@v4
        with:
          path: node_modules
          key: node-modules-${{ runner.os }}-${{ hashFiles('package-lock.json') }}
      - name: Install dependencies
        if: steps.cache-node-modules.outputs.cache-hit != 'true'
        run: npm ci --ignore-scripts
      - name: Download all artifacts
        uses: actions/download-artifact@v4
        with:
          path: _benchmark
      - name: Change rollup import in internal benchmark
        run: |
          echo "export { rollup as previousRollup, VERSION as previousVersion } from '../../_benchmark/previous/rollup.js';" > ./scripts/perf-report/rollup-artefacts.js
          echo "export { rollup as newRollup } from '../../_benchmark/current/rollup.js';" >> ./scripts/perf-report/rollup-artefacts.js
      - name: Run internal benchmark
        run: node --expose-gc scripts/perf-report/index.js
      - name: Install benchmark tool
        run: cargo install --locked hyperfine
      - name: Run Rough benchmark
        run: |
          hyperfine --warmup 1 --export-markdown _benchmark/rough-report.md --show-output --runs 3 \
            'node _benchmark/previous/bin/rollup -i ./perf/entry.js -o _benchmark/result/previous.js' \
            'node _benchmark/current/bin/rollup -i ./perf/entry.js -o _benchmark/result/current.js'
      - name: Combine bechmark reports
        run: |
          echo "# Performance report!" > _benchmark/result.md
          echo "## Rough benchmark" >> _benchmark/result.md
          cat _benchmark/rough-report.md >> _benchmark/result.md
          echo "## Internal benchmark" >> _benchmark/result.md
          cat _benchmark/internal-report.md >> _benchmark/result.md
      - name: Find Performance report
        uses: peter-evans/find-comment@v3
        id: findPerformanceReport
        with:
          issue-number: ${{ github.event.number }}
          comment-author: 'github-actions[bot]'
          body-includes: 'Performance report'
      - name: Create or update Performance report
        uses: peter-evans/create-or-update-comment@v4
        id: createOrUpdatePerformanceReport
        with:
          comment-id: ${{ steps.findPerformanceReport.outputs.comment-id }}
          issue-number: ${{ github.event.number }}
          edit-mode: replace
          body-path: _benchmark/result.md