ci.yml

name: Piff CI

on:
    push:
        branches:
            - main
            - releases/*

    pull_request:
        branches:
            - main
            - releases/*

jobs:
    build:
        runs-on: ${{ matrix.os }}

        strategy:
            matrix:
                # First all python versions in basic linux
                os: [ ubuntu-latest ]
                py: [ 3.7, 3.8, 3.9, "3.10", 3.11, 3.12 ]
                CC: [ gcc ]
                CXX: [ g++ ]
                FFTW_DIR: [ "/usr/local/lib/" ]

                # Add some other particular combinations to test
                include:
                    # A couple in MacOS
                    - os: macos-latest
                      py: "3.10"
                      CC: cc
                      CXX: c++
                      FFTW_DIR: "/opt/homebrew/lib/"

                    # Check one with clang compiler
                    - os: ubuntu-latest
                      py: 3.11
                      CC: clang
                      CXX: clang++
                      FFTW_DIR: "/usr/local/lib/"

        env:
            # Need to put this here.  export doesn't work.
            # cf. https://github.com/orgs/community/discussions/26013
            FFTW_DIR: ${{ matrix.FFTW_DIR }}

        steps:
            - uses: actions/checkout@v3
              with:
                # Helpful for a reliable codecov upload.
                fetch-depth: 0

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

            - name: Cache pip
              uses: actions/cache@v3
              with:
                path: ~/.cache/pip
                key: ${{ runner.os }}-${{ matrix.py }}-pip-${{ hashFiles('requirements.txt') }}
                restore-keys: |
                    ${{ runner.os }}-${{ matrix.py }}-pip-
                    ${{ runner.os }}-

            - name: Install libfftw, etc. on linux (needed for GalSim)
              if: matrix.os == 'ubuntu-latest'
              run: |
                echo ${{ matrix.os }}
                sudo -H apt-get -qq update
                sudo -H apt-get install -y libfftw3-dev libeigen3-dev
                ls $FFTW_DIR

            - name: Install libfftw, etc. on MacOS
              if: matrix.os == 'macos-latest'
              run: |
                echo ${{ matrix.os }}
                brew update || true
                brew install fftw eigen || true
                brew link --overwrite fftw eigen || true
                ls $FFTW_DIR

            - name: Install dependencies with pip
              run: |
                python -m pip install -U pip

                # Do these first to clarify potential conflicts
                pip install -U setuptools numpy

                # The prefix is required for recen MacOS, because of System Integrity Protection.
                # It's not necessary on Linux, but is harmless enough.
                FFTW_DIR=$FFTW_DIR pip install -U galsim

                # Standard dependencies
                pip install -U -r requirements.txt

                # Extra packages needed for testing
                # Note: Pin pillow <10 until this bug is fixed:
                #       https://github.com/python-pillow/Pillow/issues/7259
                pip install -U nose coverage "pytest<8" nbval ipykernel "pillow<10"

            - name: Install Pixmappy (not on pip)
              run: |
                git clone https://github.com/gbernstein/pixmappy.git
                cd pixmappy
                pip install -vvv .
                cd ..

            - name: List all installed packages for reference
              run: pip list

            - name: Enable Agg backend
              # The .matplotlib file needs to be in $HOME to work right.
              run: |
                cp -r tests/.matplotlib $HOME

            - name: Build Piff
              run: pip install -vvv .

            - name: Run unit tests
              run: |
                cd tests
                coverage run -m pytest -v
                coverage combine
                coverage xml
                ls -lsart
                cd ..  # N.B. This seems to happen automatically if omitted.
                       # Less confusing to include it explicitly.

            - name: Test Tutorial notebook
              if: matrix.py == 3.9
              run: |
                cd examples
                pytest --nbval Tutorial.ipynb --sanitize-with sanitize.cfg --current-env
                cd ..

            - name: Upload coverage to codecov
              uses: codecov/codecov-action@v3
              with:
                token: ${{ secrets.CODECOV_TOKEN }}
                files: tests/coverage.xml
                fail_ci_if_error: true # optional (default = false)
                verbose: true # optional (default = false)