This a FileUtils extension that defines several additional commands to be added to the FileUtils utility functions.

Methods
Constants
RUBY = File.join(Config::CONFIG['bindir'], Config::CONFIG['ruby_install_name'])
LN_SUPPORTED = [true]
Public Instance methods
ruby(*args,&block)

Run a Ruby interpreter with the given arguments.

Example:

  ruby %{-pe '$_.upcase!' <README}
     # File lib/rake.rb, line 583
583:   def ruby(*args,&block)
584:     if Hash === args.last
585:       options = args.pop
586:     else
587:       options = {}
588:     end
589:     if args.length > 1 then
590:       sh(*([RUBY] + args + [options]), &block)
591:     else
592:       sh("#{RUBY} #{args}", options, &block)
593:     end
594:   end
safe_ln(*args)

Attempt to do a normal file link, but fall back to a copy if the link fails.

     # File lib/rake.rb, line 600
600:   def safe_ln(*args)
601:     unless LN_SUPPORTED[0]
602:       cp(*args)
603:     else
604:       begin
605:         ln(*args)
606:       rescue Errno::EOPNOTSUPP, Errno::EXDEV
607:         LN_SUPPORTED[0] = false
608:         cp(*args)
609:       end
610:     end
611:   end
sh(*cmd, &block)

Run the system command cmd. If multiple arguments are given the command is not run with the shell (same semantics as Kernel::exec and Kernel::system).

Example:

  sh %{ls -ltr}

  sh 'ls', 'file with spaces'

  # check exit status after command runs
  sh %{grep pattern file} do |ok, res|
    if ! ok
      puts "pattern not found (status = #{res.exitstatus})"
    end
  end
     # File lib/rake.rb, line 557
557:   def sh(*cmd, &block)
558:     if Hash === cmd.last then
559:       options = cmd.pop
560:     else
561:       options = {}
562:     end
563:     unless block_given?
564:       show_command = cmd.join(" ")
565:       show_command = show_command[0,42] + "..." if show_command.length > 45
566:       block = lambda { |ok, status|
567:         ok or fail "Command failed with status (#{status.exitstatus}): [#{show_command}]"
568:       }
569:     end
570:     fu_check_options options, :noop, :verbose
571:     fu_output_message cmd.join(" ") if options[:verbose]
572:     unless options[:noop]
573:       res = system(*cmd)      
574:       block.call(res, $?)
575:     end
576:   end
split_all(path)

Split a file path into individual directory names.

Example:

  split_all("a/b/c") =>  ['a', 'b', 'c']
     # File lib/rake.rb, line 618
618:   def split_all(path)
619:     head, tail = File.split(path)
620:     return [tail] if head == '.' || tail == '/'
621:     return [head, tail] if head == '/'
622:     return split_all(head) + [tail]
623:   end