action.yml

name: 'Setup Buck2'
description: 'Cross platform Buck2 installation for your workflows. Download Buck2 pre-compiled binaries from the official repository.'
author: 'zadig'
branding:
  icon: 'code'
  color: 'blue'
inputs:
  release-tag:
    description: 'Release tag'
    required: true
    default: '2024-02-15'
  arch:
    description: 'Architecture'
    required: true
    default: 'x86_64'
  platform:
    description: 'Platform'
    required: true
    default: 'unknown-linux-gnu'
  sha384:
    description: 'SHA384'
    required: true
    default: '1442f2b6c1dfe0071a6c0cf3d3038e5b2b1488593555f60371c5fd1efa6d6fc4a4dc880203ddce699ba2100ce18092d7'
  output-path:
    description: 'Output path'
    required: true
    default: '/usr/bin/buck2'
runs:
  using: "composite"
  steps:
    - name: Download dependencies
      shell: bash
      run: |
        os=$(uname -s)
        if [ "${os}" = "Darwin" ]; then
          brew update && brew install curl zstd
        elif [ "${os}" = "Linux" ]; then
          sudo apt-get update && sudo apt-get install -y curl zstd
        else
          printf "Unsupported OS %s\n" "${os}"
        fi

    - name: Download buck2 binary
      shell: bash
      run: |
        URL="$(printf 'https://github.com/facebook/buck2/releases/download/%s/buck2-%s-%s.zst' "${{ inputs.release-tag }}" "${{ inputs.arch }}" "${{ inputs.platform }}")"
        curl -Lo /tmp/buck2.zst "${URL}"

    - name: Verify SHA-384 sum
      shell: bash
      run: printf '%s  %s' "/tmp/buck2.zst" "${{ inputs.sha384 }}" | shasum -a 384

    - name: Uncompress the binary
      shell: bash
      run: |
        zstd -d /tmp/buck2.zst -o /tmp/buck2
        rm /tmp/buck2.zst

    - name: Move the binary to its final location
      shell: bash
      run: |
        chmod +x /tmp/buck2
        sudo mv /tmp/buck2 "${{ inputs.output-path }}"