action.yaml

name: "install Singularity action"
description: "Install a release version of Singularity, natively without npm"
inputs:
  singularity-version:
    description: version of singularity to install
    required: true
    default: 4.0.0
  go-version:
    description: version (or expression, e.g., >=1.21.0) of Go to install
    default: '>=1.21.0'
    required: true
  cleanup:
    description: cleanup singularity directory in /tmp
    default: true
    required: true

runs:
  using: "composite"
  steps:
    - uses: actions/setup-go@v5
      with:
        go-version: ${{ inputs.go-version }}
        cache: false
    - run: go version
      shell: bash
    - name: Install Dependencies for v3
      if: startsWith(inputs.singularity-version, '3')
      shell: bash
      run: |
          sudo apt-get update
          sudo apt-get install -y \
            build-essential \
            libssl-dev \
            uuid-dev \
            libgpgme11-dev \
            squashfs-tools \
            libseccomp-dev \
            pkg-config

    - name: Install Dependencies for v4
      if: startsWith(inputs.singularity-version, '4')
      shell: bash
      run: |
          sudo apt-get update
          sudo apt-get install -y \
            autoconf \
            automake \
            cryptsetup \
            git \
            libfuse-dev \
            libglib2.0-dev \
            libseccomp-dev \
            libtool \
            pkg-config \
            runc \
            squashfs-tools \
            squashfs-tools-ng \
            uidmap \
            wget \
            zlib1g-dev

    - name: Install Singularity
      shell: bash
      env:
        VERSION: ${{ inputs.singularity-version }}
      run: |
          # Build under isolated repository so we dont grab git version
          cd /tmp
          wget https://github.com/sylabs/singularity/releases/download/v${VERSION}/singularity-ce-${VERSION}.tar.gz && \
          tar -xzf singularity-ce-${VERSION}.tar.gz && \
          rm singularity-ce-${VERSION}.tar.gz && \
          cd singularity-ce-${VERSION} && \
          ./mconfig && \
          make -C builddir && \
          sudo make -C builddir install         

    - name: Cleanup
      if: (inputs.cleanup == true || inputs.cleanup == 'true')
      shell: bash
      env:
        VERSION: ${{ inputs.singularity-version }} 
      run: rm -rf /tmp/singularity-ce-${VERSION}

    - name: Show version
      shell: bash
      run: |
        which singularity
        singularity version