.github/workflows/lint.yml

name: Lint

on:
  push:
  pull_request:
  merge_group:

concurrency:
  # Skip intermediate builds: always.
  # Cancel intermediate builds: only if it is a pull request build.
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}

jobs:
  emission-order:
    name: Deterministic IR emission order
    runs-on: ubuntu-latest
    steps:
    - name: Checkout Enzyme repository
      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
      with:
        persist-credentials: false
    - name: Check for order-dependent IR emission
      run: |
        python3 enzyme/scripts/check_emission_order.py --github \
          --include-llvm-builder enzyme/Enzyme

  llvm-api:
    name: Direct use of wrapped LLVM APIs
    runs-on: ubuntu-latest
    steps:
    - name: Checkout Enzyme repository
      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
      with:
        persist-credentials: false
    - name: Check for direct LLVM API calls that Utils.h wraps
      run: |
        python3 enzyme/scripts/check_llvm_api.py --github enzyme/Enzyme

  fortran-lint:
    name: Linting for Fortran source
    runs-on: ubuntu-latest

    steps:
    - name: Checkout Enzyme repository
      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
      with:
        persist-credentials: false
    - name: Install Fortitude
      run: |
        python3 -m venv enzyme_venv
        . enzyme_venv/bin/activate
        pip install fortitude-lint
    - name: Run Fortitude check
      run: |
        . enzyme_venv/bin/activate
        fortitude check

  shell-lint:
    name: Linting for shell scripts
    runs-on: ubuntu-latest

    steps:
    - name: Checkout Enzyme repository
      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
      with:
        persist-credentials: false
    - name: Install Shellcheck
      run: |
        sudo apt update
        sudo apt install shellcheck
    - name: Run Shellcheck
      run: shellcheck -x $(find enzyme -name '*.sh')

  cmake-lint:
    name: Linting for CMakeLists.txt files
    runs-on: ubuntu-latest

    steps:
    - name: Checkout Enzyme repository
      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
      with:
        persist-credentials: false
    - name: Install cmakefmt
      run: |
        python3 -m venv enzyme_venv
        . enzyme_venv/bin/activate
        pip install cmakefmt
    - name: Run cmakefmt --check
      run: |
        . enzyme_venv/bin/activate
        cmakefmt --check

  zizmor:
    name: GitHub Actions linting
    runs-on: ubuntu-latest
    timeout-minutes: 5
    permissions:
      security-events: write  # We trust the zizmor action with write permissions
    steps:
      - name: Checkout Enzyme repository
        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          persist-credentials: false
      - name: Run zizmor
        uses: zizmorcore/zizmor-action@e673c3917a1aef3c65c972347ed84ccd013ecda4 # v0.2.0