gistfile1

met? {
  Dir.exist? (cfn_metadata['babushka-deps']) &&
    cd(cfn_metadata['babushka-deps']) do |dir|
      [
        shell "git fetch",
        shell("git rev-list HEAD..origin/master").stdout.empty?,
        !shell("git submodule status").stdout.grep /^-/
      ].all?
    end
}