action.yml

# https://help.github.com/en/articles/metadata-syntax-for-github-actions
name: Docker Compose Setup
description: Install Docker Compose
branding:
  icon: anchor
  color: blue

inputs:
  version:
    description: 'Compose release (example: v2.2.0)'
    required: false
    default: latest
  legacy:
    description: 'Also install as legacy "docker-compose"'
    required: false
    default: true

runs:
  using: 'composite'
  steps:
    - name: install 
      shell: bash
      run: |
        set -x
        set -e
        arch="$(uname)-$(uname -m)"
        flavor=$(echo $arch | tr '[:upper:]' '[:lower:]' )

        DOWNLOAD_URL="https://github.com/docker/compose/releases/download/${{ inputs.version }}/docker-compose-${flavor}"
        if [[ "${{ inputs.version }}" == "latest" ]]; then
          DOWNLOAD_URL=$(curl -fL https://api.github.com/repos/docker/compose/releases/latest | jq -r '.assets[] | select(.name == "docker-compose-linux-x86_64") | .browser_download_url')
        fi

        echo "Download Compose ${{ inputs.version }} for ${flavor} from ${DOWNLOAD_URL}"
        mkdir -p ~/.docker/cli-plugins/
        curl -fsSL "$DOWNLOAD_URL" -o ~/.docker/cli-plugins/docker-compose
        chmod +x ~/.docker/cli-plugins/docker-compose
    - name: alias docker-compose
      if: ${{ inputs.legacy }}
      shell: bash
      run: |
        mkdir -p ~/.local/bin/
        ln -s ~/.docker/cli-plugins/docker-compose ~/.local/bin/docker-compose