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

Run a Ruby interpreter with the given arguments.

Example:

  ruby %{-pe '$_.upcase!' <README}

[Source]

     # File lib/rake.rb, line 915
915:   def ruby(*args,&block)
916:     options = (Hash === args.last) ? args.pop : {}
917:     if args.length > 1 then
918:       sh(*([RUBY] + args + [options]), &block)
919:     else
920:       sh("#{RUBY} #{args.first}", options, &block)
921:     end
922:   end

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

[Source]

     # File lib/rake.rb, line 928
928:   def safe_ln(*args)
929:     unless LN_SUPPORTED[0]
930:       cp(*args)
931:     else
932:       begin
933:         ln(*args)
934:       rescue StandardError, NotImplementedError => ex
935:         LN_SUPPORTED[0] = false
936:         cp(*args)
937:       end
938:     end
939:   end

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 892
892:   def sh(*cmd, &block)
893:     options = (Hash === cmd.last) ? cmd.pop : {}
894:     unless block_given?
895:       show_command = cmd.join(" ")
896:       show_command = show_command[0,42] + "..."
897:       # TODO code application logic heref show_command.length > 45
898:       block = lambda { |ok, status|
899:         ok or fail "Command failed with status (#{status.exitstatus}): [#{show_command}]"
900:       }
901:     end
902:     rake_check_options options, :noop, :verbose
903:     rake_output_message cmd.join(" ") if options[:verbose]
904:     unless options[:noop]
905:       res = system(*cmd)
906:       block.call(res, $?)
907:     end
908:   end

Split a file path into individual directory names.

Example:

  split_all("a/b/c") =>  ['a', 'b', 'c']

[Source]

     # File lib/rake.rb, line 946
946:   def split_all(path)
947:     head, tail = File.split(path)
948:     return [tail] if head == '.' || tail == '/'
949:     return [head, tail] if head == '/'
950:     return split_all(head) + [tail]
951:   end

[Validate]