name: Benchmark
on:
  push:
    branches: [master]
  pull_request:
    branches: [master]
    types: [opened, reopened, synchronize]
jobs:
  Benchmark:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Update rust
        run: rustup toolchain update stable
      - name: Run benchmarks
        run: cargo bench -- -R bencher | tee output.txt
      - name: Download base benchmark
        uses: actions/cache@v1
        with:
          path: ./cache
          key: ${{ runner.os }}-benchmark-${{ github.ref }}-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-benchmark-${{ github.ref }}-${{ github.sha }}
            ${{ runner.os }}-benchmark-${{ github.ref }}
            ${{ runner.os }}-benchmark
      - name: Compare benchmarks for Pull Requests
        uses: rhysd/github-action-benchmark@v1
        if: github.event_name == 'pull_request'
        with:
          tool: cargo
          output-file-path: output.txt
          external-data-json-path: ./cache/benchmark-data.json
          github-token: ${{ github.token }}
          comment-always: true
          save-data-file: false
      - name: Compare benchmarks for master branch
        uses: rhysd/github-action-benchmark@v1
        if: github.event_name == 'push'
        with:
          tool: cargo
          output-file-path: output.txt
          external-data-json-path: ./cache/benchmark-data.json
          github-token: ${{ github.token }}
          alert-threshold: 125%
          comment-on-alert: true