benchmark.yml

name: Benchmarking
on:
  issue_comment:
    types: [created]

jobs:
  benchmark:
    runs-on: ubuntu-latest
    # runs-on: [self-hosted, plutus-benchmark]
    
    permissions:
      pull-requests: write
  
    if: | 
      startsWith(github.event.comment.body, '/benchmark') && 
      github.event.issue.pull_request 

    steps:
      - name: Checkout
        uses: actions/checkout@v3.3.0

      - name: React with Rocket 
        uses: actions/github-script@v6
        with:
          script: |
            github.rest.reactions.createForIssueComment({
              owner: context.issue.owner,
              repo: context.issue.repo,
              comment_id: context.payload.comment.id,
              content: "rocket"
            });  

      - name: Extract Benchmark Name
        id: extract-benchmark
        uses: actions/github-script@v6
        with:
          script: |
            const regex = '^\/benchmark\s*(.*?)\s*$';
            const comment = context.payload.comment.body;
            const match = comment.match(regex)
            if (match !== null && match.length == 2)
              core.setOutput('benchmark', match[1]);
            else
              core.setFailed(`Unable to extract benchmark name from {comment}`);

      #
      # Run the benchmark if the 'benchmark' command was found
      #
      - run: |
         nix develop --no-warn-dirty --accept-flake-config --command bash ./scripts/ci-plutus-benchmark.sh ${{ github.event.issue.number }} ${{ steps.extract-benchmark.outputs.benchmark }}
        if: success()