Module FileUtils
In: lib/rake/file_utils.rb

Methods

ruby   safe_ln   sh   split_all  

Constants

RUBY = ENV["RUBY"] || File.join( RbConfig::CONFIG["bindir"], RbConfig::CONFIG["ruby_install_name"] + RbConfig::CONFIG["EXEEXT"]). sub(/.*\s.*/m, '"\&"')   Path to the currently running Ruby program
LN_SUPPORTED = [true]

Public Instance methods

Run a Ruby interpreter with the given arguments.

Example:

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

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

Run the system command cmd. If multiple arguments are given the command is run directly (without the shell, same semantics as Kernel::exec and Kernel::system).

It is recommended you use the multiple argument form over interpolating user input for both usability and security reasons. With the multiple argument form you can easily process files with spaces or other shell reserved characters in them. With the multiple argument form your rake tasks are not vulnerable to users providing an argument like ; rm # -rf /.

If a block is given, upon command completion the block is called with an OK flag (true on a zero exit status) and a Process::Status object. Without a block a RuntimeError is raised when the command exits non-zero.

Examples:

  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

Split a file path into individual directory names.

Example:

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

[Validate]