ci.yml

name: CI

on:
  push:
    # Avoid duplicate builds on PRs.
    branches:
      - main
  pull_request:

permissions:
  contents: read

env:
  # Used by shfmt and more.
  FORCE_COLOR: 1

jobs:
  lint:
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Ruby and dependencies
        uses: ruby/setup-ruby@v1
        with:
          bundler-cache: true
          ruby-version: "3.3"
      - name: Run ShellCheck
        run: make lint-scripts
      - name: Run shfmt
        uses: docker://mvdan/shfmt:latest
        with:
          args: "--diff ."
      - name: Run Rubocop
        run: bundle exec rubocop

  integration-test:
    runs-on: ubuntu-24.04
    strategy:
      fail-fast: false
      matrix:
        stack: ["heroku-20", "heroku-22", "heroku-24"]
    env:
      HATCHET_APP_LIMIT: 300
      HATCHET_DEFAULT_STACK: ${{ matrix.stack }}
      HATCHET_EXPENSIVE_MODE: 1
      HEROKU_API_KEY: ${{ secrets.HEROKU_API_KEY }}
      HEROKU_API_USER: ${{ secrets.HEROKU_API_USER }}
      HEROKU_DISABLE_AUTOUPDATE: 1
      PARALLEL_SPLIT_TEST_PROCESSES: 75
      RSPEC_RETRY_RETRY_COUNT: 2
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Ruby and dependencies
        uses: ruby/setup-ruby@v1
        with:
          bundler-cache: true
          ruby-version: "3.3"
      - name: Hatchet setup
        run: bundle exec hatchet ci:setup
      - name: Run Hatchet integration tests
        # parallel_split_test runs rspec in parallel, with concurrency equal to PARALLEL_SPLIT_TEST_PROCESSES.
        run: bundle exec parallel_split_test spec/hatchet/

  container-test:
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      # These test both the local development `make run` workflow and that `bin/report` completes successfully
      # for both passing and failing builds (since `bin/report` can't easily be tested via Hatchet tests).
      - name: Run buildpack using default app fixture
        run: make run
      - name: Run buildpack using an app fixture that's expected to fail
        run: make run FIXTURE=spec/fixtures/python_version_file_invalid_version/