Module
FileUtils
In: lib/rake.rb

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

Methods

ruby, safe_ln, sh, split_all,
Public Instance methods
ruby(*args,&block)

Run a Ruby interpreter with the given arguments.

Example:

  ruby %{-pe '$_.upcase!' <README}
     # File lib/rake.rb, line 735
735:   def ruby(*args,&block)
736:     options = (Hash === args.last) ? args.pop : {}
737:     if args.length > 1 then
738:       sh(*([RUBY] + args + [options]), &block)
739:     else
740:       sh("#{RUBY} #{args}", options, &block)
741:     end
742:   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 748
748:   def safe_ln(*args)
749:     unless LN_SUPPORTED[0]
750:       cp(*args)
751:     else
752:       begin
753:         ln(*args)
754:       rescue StandardError, NotImplementedError => ex
755:         LN_SUPPORTED[0] = false
756:         cp(*args)
757:       end
758:     end
759:   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 712
712:   def sh(*cmd, &block)
713:     options = (Hash === cmd.last) ? cmd.pop : {}
714:     unless block_given?
715:       show_command = cmd.join(" ")
716:       show_command = show_command[0,42] + "..." 
717:         # TODO code application logic heref show_command.length > 45
718:       block = lambda { |ok, status|
719:         ok or fail "Command failed with status (#{status.exitstatus}): [#{show_command}]"
720:       }
721:     end
722:     rake_check_options options, :noop, :verbose
723:     rake_output_message cmd.join(" ") if options[:verbose]
724:     unless options[:noop]
725:       res = system(*cmd)
726:       block.call(res, $?)
727:     end
728:   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 766
766:   def split_all(path)
767:     head, tail = File.split(path)
768:     return [tail] if head == '.' || tail == '/'
769:     return [head, tail] if head == '/'
770:     return split_all(head) + [tail]
771:   end