A quick and dirty tool for turning standalone scripts into a .deb package

debian_packager.rb

# Helper for building Debian Packages on Ubuntu/Debian systems

require 'fileutils'

class DebPackager
  def initialize(opts = {})
    @package_name = opts[:package_name]
    @version = opts[:version]
    @section = opts[:base] || "base"
    @priority = opts[:priority] || "optional"
    @arch = opts[:arch] || "all"
    @maintainer = opts[:maintainer] || "Admin <admin@project.com>"
    @description = opts[:description]
    @files = opts[:files]
  end

  def build_root_exists?
    Dir.exists?("debian")
  end

  def clean_build_root
    FileUtils.rm_rf("debian")
  end

  def make_build_root
    if build_root_exists?
      return false
    else
      FileUtils.mkdir_p "./debian/usr/bin"
      return true
    end
  end

  def copy_files
    @files.each do |file|
      FileUtils.cp "#{file}", "./debian/usr/bin/#{file}"
    end
  end

  def generate_control_file
    "Package: #{@package_name}\n" +
    "Version: #{@version}\n" +
    "Section: #{@section}\n" +
    "Priority: #{@priority}\n" +
    "Architecture: #{@arch}\n" +
    "Maintainer: #{@maintainer}\n" +
    "Description: #{@description}"
  end

  def build_control_file
    FileUtils.mkdir_p("./debian/DEBIAN")
    ctrl_file = File.open("./debian/DEBIAN/control")
    ctrl_file.write(generate_control_file)
  end

  def build_project
    puts `fakeroot dpkg-deb --build debian`
    FileUtils.mv "debian.rb" "#{@package_name}_#{@version}_all.deb"
  end

end

dp = DebPackager.new(
       :package_name => "testy",
       :version => "1.1-1",
       :description => "A test debian package"
       :files => ["testy"]
     )

dp.clean_build_root
dp.make_build_root
dp.copy_files
dp.build_control_file
dp.build_project