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

### 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}

[Source]

         # 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.

[Source]

         # 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

[Source]

         # 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']

[Source]

         # 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

[Validate]