rakefile

SYSTEM_DEPENDENCIES = ["ruby", "rake", "gem"]
GEM_DEPENDENCIES = ["redis", "resque"]

def dependency_check(who)
  if(system("which #{who}"))
    puts "#{who} installed."
  else
    puts "#{who} missing."
  end
end

namespace :install do  
  desc "Dependencies: "
  task :check do
    SYSTEM_DEPENDENCIES.each { |d| dependency_check(d) }
  end
  
  namespace :dep do
    task :ubuntu => :check do
      raise '*** Must run as root ***' unless Process.uid == 0
      raise '*** Can\'t find apt-get ***' unless system('which apt-get') 
      system("apt-get install ruby1.8-dev, rake, rubygems, redis")
      puts "*** FINAL STEPS ***"
      puts "Strongly suggest adding /var/lib/gems/1.8/gems/bin to path if you wish to use gem executables as root, or for users only add ~/.gem/ruby/1.8/bin/"
    end
  end
  
  desc "Install everything"
  task :gems do
    GEM_DEPENDENCIES.each do |dep|
      puts "Installing #{dep}"
      puts system("gem install #{dep} --no-ri --no-rdoc --include-dependencies")
    end
  end
end