conda-style-builds.yml

name: Conda-compatible builds

on:
  push:
    branches:
      - main
  pull_request:
  workflow_dispatch:

defaults:
  run:
    # Enable Conda environment by using the login shell:
    shell: bash -leo pipefail {0}

jobs:
  CI:
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-24.04, macos-13, macos-latest, windows-2022]
        build-type: [RelWithDebugInfo]
    env:
      FC: gfortran
      CMAKE_BUILD_PARALLEL_LEVEL: 8
      VERBOSE:
      CTEST_PARALLEL_LEVEL: 8
      CTEST_OUTPUT_ON_FAILURE: 1
    runs-on: ${{ matrix.os }}
    steps:
      #
      # Check out repository under $GITHUB_WORKSPACE
      #
      - name: Check out code
        uses: actions/checkout@v4
      #
      # Cache Conda packages
      #
      - name: Cache Conda packages
        uses: actions/cache@v4
        with:
          path: ~/conda_pkgs_dir
          key: conda-pkgs-${{ matrix.os }}
      #
      # Set up Conda
      #
      - name: Set up Conda (testing scripts only)
        uses: conda-incubator/setup-miniconda@v3
        with:
          miniforge-version: latest
          activate-environment: rte_rrtmgp_test
          environment-file: environment-noplots.yml
          python-version: 3.11
          auto-activate-base: false
          conda-remove-defaults: true
          # Use the cache properly:
          use-only-tar-bz2: false
      #
      # Install compiler and dependencies
      #
      - name: Install compiler, dependencies
        run: |
          conda install -c conda-forge "${FC}" netcdf-fortran ninja -y
      #
      # Adjust toolchain
      #
      - name: Adjust Windows toolchain
        if: matrix.os == 'windows-2022'
        run: echo "FC=${FC}.exe" >> "$GITHUB_ENV"
      #
      # Build libraries, examples, and tests
      #
      - name: Build libraries and tests
        run: |
          cmake -S . -B build -G "Ninja" \
              -DCMAKE_BUILD_TYPE=${{ matrix.build-type}} \
              -DRTE_ENABLE_SP=OFF \
              -DBUILD_TESTING=ON
          cmake --build build
      #
      # Run examples, tests and checks
      #
      - name: Run examples, tests and checks
        working-directory: build
        run: ctest