name: Install nim
description: Install the given nim version

inputs:
  nimVersion:
    description: a nim version string like 2.2.2 or 2.0.8
    required: true
  os:
    description: a os string like "linux" "windows"
    required: true

jobs:
  install_nim:
    runs-on: docker
    env:
      nimPath: "nim-${{inputs.nimVersion}}-${{inputs.os}}_x64.tar.xz"
      nimUrl: "https://nim-lang.org/download/${{env.nimPath}}"

    steps:
      ## Tries to use the cached version of the nim tar ball
      - name: cache restore
        id: cachestep1
        uses: https://code.forgejo.org/actions/cache/restore@v4
        with:
          path: ${{env.nimPath}}
          key: ${{env.nimPath}}

      - name: cache hit
        run: |
          if [ ! ${{steps.cachestep1.outputs.cache-hit}} ]; then 
            echo "Download nim tarball"
            wget ${{env.nimUrl}}
          fi

      - name: cache save
        uses: https://code.forgejo.org/actions/cache/save@v4
        with:
          path: ${{env.nimPath}}
          key: ${{steps.cachestep1.outputs.cache-key}}

      - run: tar xvf ${{env.nimPath}}
      - run: ln -s `pwd`/nim-${{inputs.nimVersion}}/bin/* /usr/bin/
      - run: gcc --version
      - run: nim --version
      - run: nimble --version