task :rake_environment do

$rails_rake_task = true
require(File.join(APPLICATION_ROOT, 'config', 'environment'))
RuGUI.configuration.logger[:level] = :error

end

desc “List the gems that this RuGUI application depends on” task :gems => ‘gems:base’ do

RuGUI.configuration.gems.each do |gem|
  print_gem_status(gem)
end
puts
puts "I = Installed"
puts "F = Frozen"
puts "R = Framework (loaded before RuGUI starts)"

end

namespace :gems do

task :base do
  $gems_rake_task = true
  require 'rubygems'
  require 'rubygems/gem_runner'
  Rake::Task[:rake_environment].invoke
end

desc "Build any native extensions for unpacked gems"
task :build do
  $gems_build_rake_task = true
  Rake::Task['gems:unpack'].invoke
  current_gems.each &:build
end

desc "Installs all required gems."
task :install => :base do
  current_gems.each &:install
end

desc "Unpacks all required gems into vendor/gems."
task :unpack => :install do
  current_gems.each &:unpack
end

namespace :unpack do
  desc "Unpacks all required gems and their dependencies into vendor/gems."
  task :dependencies => :install do
    current_gems.each { |gem| gem.unpack(:recursive => true) }
  end
end

desc "Regenerate gem specifications in correct format."
task :refresh_specs => :base do
  current_gems.each &:refresh
end

end

def current_gems

gems = RuGUI.configuration.gems
gems = gems.select { |gem| gem.name == ENV['GEM'] } unless ENV['GEM'].blank?
gems

end

def print_gem_status(gem, indent=1)

code = case
  when gem.framework_gem? then 'R'
  when gem.frozen?        then 'F'
  when gem.installed?     then 'I'
  else                         ' '
end
puts "   "*(indent-1)+" - [#{code}] #{gem.name} #{gem.requirement.to_s}"
gem.dependencies.each { |g| print_gem_status(g, indent+1) }

end