action.yaml

name: Setup gah
description: GitHub Action that setups gah

author: marverix

branding:
  icon: package
  color: yellow

inputs:
  version:
    description: gah version to install
    default: latest

runs:
  using: composite
  steps:
    - name: Check valid OS
      if: ${{ runner.os == 'Windows' }}
      shell: powershell
      run: |
        Write-Host "::error title=OS Not Supported::gah does not support Windows OS."
        exit 1

    - name: Check pre-requisites
      shell: bash
      run: |
        if [ "${BASH_VERSINFO[0]}" -lt 4 ]; then
          echo "::error title=Pre-requisite failed::Bash 4.0 or higher is required"
          exit 1
        fi

        required_commands=(tar unzip curl jq)
        for cmd in "${required_commands[@]}"; do
          if ! command -v "$cmd" &> /dev/null; then
            echo "::error title=Pre-requisite failed::$cmd is not installed"
            exit 1
          fi
        done

    - name: Check version
      id: version
      shell: bash
      env:
        TAG: ${{ inputs.version }}
      run: |
        if [ "$TAG" == "latest" ]; then
          TAG=$(curl -s https://api.github.com/repos/marverix/gah/releases/latest | jq -r '.tag_name')
        fi

        echo "tag=$TAG" >> $GITHUB_OUTPUT

    - name: Prepare environment
      shell: bash
      env:
        ACTION_PATH: ${{ github.action_path }}
      run: |
        echo "UNATTENDED=true" >> $GITHUB_ENV

        GAH_CACHE_DIR="$ACTION_PATH/.cache"
        echo "GAH_CACHE_DIR=$GAH_CACHE_DIR" >> $GITHUB_ENV
        mkdir -p "$GAH_CACHE_DIR"

        GAH_INSTALL_DIR="$ACTION_PATH/.bin"
        echo "GAH_INSTALL_DIR=$GAH_INSTALL_DIR" >> $GITHUB_ENV
        mkdir -p "$GAH_INSTALL_DIR"

        echo "PATH=$GAH_INSTALL_DIR:$PATH" >> $GITHUB_ENV

        if [[ -n "$RUNNER_DEBUG" ]]; then
          echo "GAH_DEBUG=true" >> $GITHUB_ENV
        fi

    - name: Download gah
      shell: bash
      env:
        TAG: ${{ steps.version.outputs.tag }}
      run: |
        curl -sL --fail-with-body https://raw.githubusercontent.com/marverix/gah/refs/tags/${TAG}/gah -o "$GAH_INSTALL_DIR/gah"
        chmod +x "$GAH_INSTALL_DIR/gah"