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 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
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
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 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