flash-watcher 0.1.2

name: Benchmarks

on:
  # Allow manual triggering
  workflow_dispatch:
    inputs:
      upload_results:
        description: 'Upload benchmark results as artifacts'
        required: false
        default: true
        type: boolean

  # Run benchmarks on releases
  release:
    types: [published]

  # Optional: Run benchmarks weekly (commented out to save workflow minutes)
  # schedule:
  #   - cron: '0 2 * * 0'  # Every Sunday at 2 AM UTC

env:
  CARGO_TERM_COLOR: always

jobs:
  benchmark:
    name: Run Benchmarks
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4

    - name: Install Rust
      uses: dtolnay/rust-toolchain@stable

    - name: Cache cargo registry
      uses: actions/cache@v3
      with:
        path: ~/.cargo/registry
        key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo index
      uses: actions/cache@v3
      with:
        path: ~/.cargo/git
        key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo build
      uses: actions/cache@v3
      with:
        path: target
        key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}

    - name: Install gnuplot (for benchmark charts)
      run: sudo apt-get update && sudo apt-get install -y gnuplot

    - name: Run benchmarks
      run: |
        echo "Running benchmarks..."
        cargo bench --features benchmarks --verbose
        echo "Benchmarks completed!"

    - name: Upload benchmark results
      if: ${{ inputs.upload_results == 'true' || github.event_name == 'release' }}
      uses: actions/upload-artifact@v4
      with:
        name: benchmark-results
        path: |
          target/criterion/
          *.html
        retention-days: 30

    - name: Comment benchmark results on PR
      if: github.event_name == 'pull_request'
      uses: actions/github-script@v7
      with:
        script: |
          github.rest.issues.createComment({
            issue_number: context.issue.number,
            owner: context.repo.owner,
            repo: context.repo.repo,
            body: '🚀 Benchmark results are available in the workflow artifacts!'
          })