action.yml

name: Setup OpenFOAM
description: Set up a specific version of OpenFOAM
inputs:
  openfoam-version:
    description: Version of OpenFOAM to set up
  cache:
    description: Whether to cache the OpenFOAM installation for future runs
    default: true
branding:
  icon: grid
  color: blue
runs:
  using: "composite"
  steps:
    - name: Prepare
      id: prep
      run: |
        if [ $(uname) == "Darwin" ]; then
          echo "brew-cask=gerlero/openfoam/openfoam@${{ inputs.openfoam-version }}" >> "$GITHUB_OUTPUT"
          echo "openfoam-etc=/Applications/OpenFOAM-v${{ inputs.openfoam-version }}.app/Contents/Resources/etc" >> "$GITHUB_OUTPUT"
        elif [ ${{ inputs.openfoam-version }} -lt 1000 ]; then
          echo "apt-repository=http://dl.openfoam.org/ubuntu" >> "$GITHUB_OUTPUT"
          echo "apt-key=$GITHUB_ACTION_PATH/gpg.key" >> "$GITHUB_OUTPUT"
          echo "apt-package=openfoam${{ inputs.openfoam-version }}" >> "$GITHUB_OUTPUT"
          echo "openfoam-etc=/opt/openfoam${{ inputs.openfoam-version }}/etc" >> "$GITHUB_OUTPUT"
        else
          echo "apt-repository=https://dl.openfoam.com/repos/deb" >> "$GITHUB_OUTPUT"
          echo "apt-key=$GITHUB_ACTION_PATH/pubkey.gpg" >> "$GITHUB_OUTPUT"
          echo "apt-package=openfoam${{ inputs.openfoam-version }}-default" >> "$GITHUB_OUTPUT"
          echo "openfoam-etc=/usr/lib/openfoam/openfoam${{ inputs.openfoam-version }}/etc" >> "$GITHUB_OUTPUT"
        fi
      shell: bash
    - name: Add APT repository
      if: steps.prep.outputs.apt-repository
      uses: gerlero/add-apt-repository@v1
      with:
        uri: ${{ steps.prep.outputs.apt-repository }}
        key: ${{ steps.prep.outputs.apt-key }}
        cache: ${{ inputs.cache == 'true' }}
    - name: Install OpenFOAM on Linux
      if: steps.prep.outputs.apt-package
      uses: gerlero/apt-install@v1
      with:
        packages: ${{ steps.prep.outputs.apt-package }}
        install-recommends: false
        cache: ${{ inputs.cache == 'true' }}
    - name: Install OpenFOAM on macOS
      if: steps.prep.outputs.brew-cask
      uses: gerlero/brew-install@v1
      with:
        packages: ${{ steps.prep.outputs.brew-cask }}
        type: cask
        cache: ${{ inputs.cache == 'true' }}
    - name: Activate OpenFOAM for future steps
      run: |
        old_path="$PATH"
        source "${{ steps.prep.outputs.openfoam-etc }}/bashrc" || true

        for var in "${!WM_@}"; do
          echo "$var=${!var}" >> "$GITHUB_ENV"
        done

        for var in "${!FOAM_@}"; do
          echo "$var=${!var}" >> "$GITHUB_ENV"
        done

        echo "LD_LIBRARY_PATH=$LD_LIBRARY_PATH" >> "$GITHUB_ENV"

        echo "${PATH/%:$old_path}" >> "$GITHUB_PATH"
      shell: bash
    - name: Add openfoam command to PATH
      if: inputs.openfoam-version >= 1000
      run: |
        mkdir -p ~/.setup-openfoam/bin
        ln -sf $(which openfoam${{ inputs.openfoam-version }}) ~/.setup-openfoam/bin/openfoam
        echo ~/.setup-openfoam/bin >> "$GITHUB_PATH"
      shell: bash