name: Setup Flux CLI
description: A GitHub Action for running Flux commands
author: Stefan Prodan
branding:
  color: blue
  icon: command
inputs:
  version:
    description: "Flux version e.g. 0.8.0 (defaults to latest stable release)"
    required: false
runs:
  using: composite
  steps:
    - name: "Download flux binary to tmp"
      shell: bash
      run: |
        VERSION=${{ inputs.version }}

        if [ -z $VERSION ]; then
          VERSION=$(curl https://api.github.com/repos/fluxcd/flux2/releases/latest -sL | grep tag_name | sed -E 's/.*"([^"]+)".*/\1/' | cut -c 2-)
        fi

        BIN_URL="https://github.com/fluxcd/flux2/releases/download/v${VERSION}/flux_${VERSION}_linux_amd64.tar.gz"
        curl -sL ${BIN_URL} -o /tmp/flux.tar.gz
        mkdir -p /tmp/flux
        tar -C /tmp/flux/ -zxvf /tmp/flux.tar.gz
    - name: "Add flux binary to /usr/local/bin"
      shell: bash
      run: |
        sudo cp /tmp/flux/flux /usr/local/bin
    - name: "Cleanup tmp"
      shell: bash
      run: |
        rm -rf /tmp/flux/ /tmp/flux.tar.gz
    - name: "Verify correct installation of binary"
      shell: bash
      run: |
        flux -v