desc "List the gems that this rails application depends on" task :gems => :environment do Rails.configuration.gems.each do |gem| puts "[#{gem.loaded? ? '*' : ' '}] #{gem.name} #{gem.requirement.to_s}" end end namespace :gems do desc "Build any native extensions for unpacked gems" task :build do Dir[File.join(RAILS_ROOT, 'vendor', 'gems', '*')].each do |gem_dir| spec_file = File.join(gem_dir, '.specification') next unless File.exists?(spec_file) specification = YAML::load_file(spec_file) next unless ENV['GEM'].blank? || ENV['GEM'] == specification.name Rails::GemBuilder.new(specification, gem_dir).build_extensions puts "Built gem: '#{gem_dir}'" end end desc "Installs all required gems for this application." task :install => :environment do require 'rubygems' require 'rubygems/gem_runner' Rails.configuration.gems.each { |gem| gem.install unless gem.loaded? } end desc "Unpacks the specified gem into vendor/gems." task :unpack do Rake::Task["environment"].invoke require 'rubygems' require 'rubygems/gem_runner' Rails.configuration.gems.each do |gem| next unless ENV['GEM'].blank? || ENV['GEM'] == gem.name gem.unpack_to(File.join(RAILS_ROOT, 'vendor', 'gems')) if gem.loaded? end end end