ci.yml

name: CI

defaults:
  run:
    shell: bash  # To override PowerShell on Windows

on:
  # Trigger the workflow on push or pull request,
  # but only for the master branch
  push:
    branches:
      - master
  pull_request:
    # don't trigger for draft PRs
    types: [ opened, synchronize, reopened, ready_for_review ]
  # Trigger workflow once per week
  schedule:
    - cron: '0 0 * * *'
  # Trigger the workflow on manual dispatch
  workflow_dispatch:
    inputs:
      tmate_enabled:
        type: boolean
        description: 'Enable tmate debugging?'
        required: false
        default: false


jobs:
  build:
    if: github.event.pull_request.draft == false

    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ ubuntu-latest ]
        python-version: [ '3.8', '3.9', '3.10', '3.11']
        include: # Run macos and windows tests on only one python version
          - os: windows-latest
            python-version: '3.10' # torch 1.x not available on Windows or MacOS for Python 3.11
          - os: macos-latest
            python-version: '3.10'

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v4
        with:
          python-version: ${{ matrix.python-version }}

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip setuptools wheel
          python -m pip install --upgrade --upgrade-strategy eager -r requirements/dev.txt
          python -m pip install --upgrade --upgrade-strategy eager .[prophet,tensorflow,torch]
          if [ "$RUNNER_OS" == "Linux" ]; then  # Currently, we only support KeOps on Linux.
            python -m pip install --upgrade --upgrade-strategy eager .[prophet,tensorflow,torch,keops]
          fi
          python -m pip freeze

      - name: Setup tmate session
        uses: mxschmitt/action-tmate@v3
        if: ${{ github.event_name == 'workflow_dispatch' && inputs.tmate_enabled }}
        with:
          limit-access-to-actor: true

      - name: Test with pytest
        run: |
          if [ "$RUNNER_OS" == "macOS" ]; then  # Avoid numba/OpenMP segfault in CVMDrift (https://github.com/SeldonIO/alibi-detect/issues/648)
            export NUMBA_THREADING_LAYER="workqueue"
          fi
          pytest --randomly-seed=0 alibi_detect
          # Note: The pytest-randomly seed is fixed at 0 for now. Once the legacy np.random.seed(0)'s 
          # are removed from tests, this can be removed, allowing all tests to use random seeds.

      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v3
        with:
          directory: .
          env_vars: ${{matrix.os}}, ${{matrix.python-version}}
          fail_ci_if_error: false
          verbose: true

      - name: Build Python package
        run: |
          make build_pypi

  code-quality:

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3
      - name: Set up Python 3.x
        uses: actions/setup-python@v4
        with:
          python-version: '3.10'
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install --upgrade --upgrade-strategy eager -r requirements/dev.txt
          python -m pip install --upgrade --upgrade-strategy eager .[all]

      - name: Lint with flake8
        run: |
          flake8 alibi_detect

      - name: Typecheck with mypy
        run: |
          mypy alibi_detect

  docs:
    if: github.event.pull_request.draft == false

    runs-on: ubuntu-latest

    container:
      image: readthedocs/build:ubuntu-22.04-2022.03.15
      options: --user root

    steps:
      - uses: actions/checkout@v3
      - name: Set up Python 3.x
        uses: actions/setup-python@v4
        with:
          python-version: '3.10'
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install -r requirements/docs.txt
          python -m pip freeze
      - name: Build documentation to html
        run: |
          make build_docs
      - name: Build documentation to pdf via latex
        run: |
          make build_latex

  licenses:
    if: github.event.pull_request.draft == false

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3
      - name: Set up Python 3.x
        uses: actions/setup-python@v4
        with:
          python-version: '3.10'
      - name: Check 3rd party licenses haven't changed
        run: |
          pip install "tox>=3.21.0,<4.0.0"
          make licenses
          make check_licenses

  optional_dependencies:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        env: [ 'default', 'tensorflow', 'torch', 'prophet', 'keops', 'all' ]
    steps:
      - uses: actions/checkout@v3
      - name: Set up Python 3.x
        uses: actions/setup-python@v4
        with:
          python-version: '3.10'
      - name: Check optional dependency imports are protected
        run: |
          pip install "tox>=3.21.0,<4.0.0"
          tox -e ${{matrix.env}}