PageRenderTime 85ms CodeModel.GetById 65ms app.highlight 17ms RepoModel.GetById 1ms app.codeStats 0ms

/tools/Ruby/lib/ruby/gems/1.8/gems/rake-0.9.2/lib/rake/file_utils.rb

http://github.com/agross/netopenspace
Ruby | 112 lines | 69 code | 10 blank | 33 comment | 12 complexity | ea877f4e89e90eac374c10d64ed3ddf3 MD5 | raw file
  1require 'rbconfig'
  2require 'fileutils'
  3
  4# ###########################################################################
  5# This a FileUtils extension that defines several additional commands to be
  6# added to the FileUtils utility functions.
  7#
  8module FileUtils
  9  # Path to the currently running Ruby program
 10  RUBY = File.join(
 11    RbConfig::CONFIG['bindir'],
 12    RbConfig::CONFIG['ruby_install_name'] + RbConfig::CONFIG['EXEEXT']).
 13    sub(/.*\s.*/m, '"\&"')
 14
 15  OPT_TABLE['sh']  = %w(noop verbose)
 16  OPT_TABLE['ruby'] = %w(noop verbose)
 17
 18  # Run the system command +cmd+. If multiple arguments are given the command
 19  # is not run with the shell (same semantics as Kernel::exec and
 20  # Kernel::system).
 21  #
 22  # Example:
 23  #   sh %{ls -ltr}
 24  #
 25  #   sh 'ls', 'file with spaces'
 26  #
 27  #   # check exit status after command runs
 28  #   sh %{grep pattern file} do |ok, res|
 29  #     if ! ok
 30  #       puts "pattern not found (status = #{res.exitstatus})"
 31  #     end
 32  #   end
 33  #
 34  def sh(*cmd, &block)
 35    options = (Hash === cmd.last) ? cmd.pop : {}
 36    shell_runner = block_given? ? block : create_shell_runner(cmd)
 37    set_verbose_option(options)
 38    options[:noop] ||= Rake::FileUtilsExt.nowrite_flag
 39    Rake.rake_check_options options, :noop, :verbose
 40    Rake.rake_output_message cmd.join(" ") if options[:verbose]
 41    unless options[:noop]
 42      res = rake_system(*cmd)
 43      status = $?
 44      status = PseudoStatus.new(1) if !res && status.nil?
 45      shell_runner.call(res, status)
 46    end
 47  end
 48
 49  def create_shell_runner(cmd)
 50    show_command = cmd.join(" ")
 51    show_command = show_command[0,42] + "..." unless $trace
 52    lambda { |ok, status|
 53      ok or fail "Command failed with status (#{status.exitstatus}): [#{show_command}]"
 54    }
 55  end
 56  private :create_shell_runner
 57
 58  def set_verbose_option(options)
 59    if options[:verbose].nil?
 60      options[:verbose] = Rake::FileUtilsExt.verbose_flag.nil? || Rake::FileUtilsExt.verbose_flag
 61    end
 62  end
 63  private :set_verbose_option
 64
 65  def rake_system(*cmd)
 66    Rake::AltSystem.system(*cmd)
 67  end
 68  private :rake_system
 69
 70  # Run a Ruby interpreter with the given arguments.
 71  #
 72  # Example:
 73  #   ruby %{-pe '$_.upcase!' <README}
 74  #
 75  def ruby(*args,&block)
 76    options = (Hash === args.last) ? args.pop : {}
 77    if args.length > 1 then
 78      sh(*([RUBY] + args + [options]), &block)
 79    else
 80      sh("#{RUBY} #{args.first}", options, &block)
 81    end
 82  end
 83
 84  LN_SUPPORTED = [true]
 85
 86  #  Attempt to do a normal file link, but fall back to a copy if the link
 87  #  fails.
 88  def safe_ln(*args)
 89    unless LN_SUPPORTED[0]
 90      cp(*args)
 91    else
 92      begin
 93        ln(*args)
 94      rescue StandardError, NotImplementedError
 95        LN_SUPPORTED[0] = false
 96        cp(*args)
 97      end
 98    end
 99  end
100
101  # Split a file path into individual directory names.
102  #
103  # Example:
104  #   split_all("a/b/c") =>  ['a', 'b', 'c']
105  #
106  def split_all(path)
107    head, tail = File.split(path)
108    return [tail] if head == '.' || tail == '/'
109    return [head, tail] if head == '/'
110    return split_all(head) + [tail]
111  end
112end