name: Install Nimble
description: install nimble
inputs:
  nimble_version:
    description: "install nimble"
    # TODO: make sure to change to tagged release when available
    default: "latest"
  os:
    description: "operating system"
    default: "linux"
  cpu:
    description: "cpu architecture"
    default: "amd64"
runs:
  using: "composite"
  steps:
    - uses: actions/checkout@v3
    - name: Build Nimble
      shell: bash
      run: |
        set -x
        mkdir -p .nimble
        cd .nimble
        if [[ '${{ inputs.cpu }}' == 'amd64' ]]; then
          CPU=x64
        elif [[ '${{ inputs.cpu }}' == 'i386' ]]; then
          CPU=x32
        else
          CPU=${{ inputs.cpu }}
        fi

        if [[ '${{ inputs.os }}' == 'macos' ]]; then
          OS=apple
        else
          OS='${{ inputs.os }}'
        fi
        URL=https://github.com/nim-lang/nimble/releases/download/${{ inputs.nimble_version }}/nimble-"$OS"_"$CPU".tar.gz
        curl -o nimble.tar.gz -L -s -S "$URL"
        tar -xvf nimble.tar.gz
    - name: Derive environment variables
      shell: bash
      run: echo '${{ github.workspace }}/.nimble/' >> $GITHUB_PATH