InstallShield multi version support

InstallShieldConfiguration.rb

module InstallShield
  class InstallShieldConfiguration
    attr_accessor :command, :parameters, :ism, :product_version, :product_code
    attr_reader :new_product_code

    def initialize
      @command = File.join ENV['ProgramFiles(x86)'], 'InstallShield/2010 StandaloneBuild/System/IsCmdBld.exe'
      @parameters = []
    end

    def new_product_code!
      @new_product_code = true
    end

    def make_parameters
      @parameters ||= []
      @parameters << "-p \"#{windows_path @ism}\""
      @parameters.flatten
    end

    def windows_path(path)
      path.gsub '/', '\\'
    end
  end
end

InstallShieldContext.rb

module InstallShield
  V2010 = InstallShieldContext.new(2010, 16)
  V2011 = InstallShieldContext.new(2011, 17)
  V2012 = InstallShieldContext.new(2012, 18)

  class InstallShieldContext
    attr_reader :command_path, :com_object

    def initialize(year, version)
      @command_path = File.join ENV['ProgramFiles(x86)'], "InstallShield/#{year} StandaloneBuild/System/IsCmdBld.exe"
      @com_object = "ISWiAuto#{version}.ISWiProject"
    end
  end
end

IsmProject.rb

module InstallShield
  require 'win32ole'

  class IsmProject
    def initialize(ism)
      @project = WIN32OLE.new 'ISWiAuto16.ISWiProject'
      @ism = ism
    end

    def modify
      @project.OpenProject @ism
      yield(@project) if block_given?
      puts "MSI:: #{@ism} v#{@project.ProductVersion} #{@project.ProductCode}"
      @project.SaveProject
      @project.CloseProject
    end
  end
end