Rakefile

def missing(message)
  if message.is_a? Symbol
    puts "The environment is missing #{message.to_s.upcase}"
  else
    puts message
  end
end

desc "Check the environment for proper setup"
task :checkenv do
  env_is_ok = true
  if ENV["PATH"].index("environment-manager/common/bin").nil?
    missing "PATH is missing environment-manager/common/bin"
    env_is_ok = false
  end
  [ :titanium_root, :android_sdk_path, :android_tools, :google_drive ].each do |variable|
    str = variable.to_s.upcase
    if not ENV[str] or ENV[str].empty?
      missing variable
      env_is_ok = false
    end
  end
  abort "Environment is not ready. See above." unless env_is_ok
end

desc "foobar"
task :default => :checkenv do
  puts "Word! Yo!"
end