Module | FileUtils |
In: |
lib/rake.rb
|
RUBY | = | File.join(Config::CONFIG['bindir'], Config::CONFIG['ruby_install_name']) |
LN_SUPPORTED | = | [true] |
Run a Ruby interpreter with the given arguments.
Example:
ruby %{-pe '$_.upcase!' <README}
# File lib/rake.rb, line 746 746: def ruby(*args,&block) 747: options = (Hash === args.last) ? args.pop : {} 748: if args.length > 1 then 749: sh(*([RUBY] + args + [options]), &block) 750: else 751: sh("#{RUBY} #{args}", options, &block) 752: end 753: end
Attempt to do a normal file link, but fall back to a copy if the link fails.
# File lib/rake.rb, line 759 759: def safe_ln(*args) 760: unless LN_SUPPORTED[0] 761: cp(*args) 762: else 763: begin 764: ln(*args) 765: rescue StandardError, NotImplementedError => ex 766: LN_SUPPORTED[0] = false 767: cp(*args) 768: end 769: end 770: 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
# File lib/rake.rb, line 724 724: def sh(*cmd, &block) 725: options = (Hash === cmd.last) ? cmd.pop : {} 726: unless block_given? 727: show_command = cmd.join(" ") 728: show_command = show_command[0,42] + "..." if show_command.length > 45 729: block = lambda { |ok, status| 730: ok or fail "Command failed with status (#{status.exitstatus}): [#{show_command}]" 731: } 732: end 733: rake_check_options options, :noop, :verbose 734: rake_output_message cmd.join(" ") if options[:verbose] 735: unless options[:noop] 736: res = system(*cmd) 737: block.call(res, $?) 738: end 739: end
Split a file path into individual directory names.
Example:
split_all("a/b/c") => ['a', 'b', 'c']
# File lib/rake.rb, line 777 777: def split_all(path) 778: head, tail = File.split(path) 779: return [tail] if head == '.' || tail == '/' 780: return [head, tail] if head == '/' 781: return split_all(head) + [tail] 782: end