class Jeweler::Commands::InstallGem

def self.build_for(jeweler)
  command = new
  command.output = jeweler.output
  command.gemspec_helper = jeweler.gemspec_helper
  command
end

def initialize
  self.output = $stdout
end

def run
  command = "sudo gem install #{gemspec_helper.gem_path}"
  output.puts "Executing #{command.inspect}:"
  sh command # TODO where does sh actually come from!?
end