#--
# Copyright 2009 by Stefan Rusterholz.
# All rights reserved.
# See LICENSE.txt for permissions.
#++



#--
# Taken from baretest. Do NOT modify this file. Instead modify
# baretest/lib/baretest/utilities.rb and copy back here
#++



module Kernel
  # All extensions Kernel#require_path and Kernel#expanded_require_path will try
  # for a given filename
  RequireExtensions = %w[.rb .so .dll .bundle .dylib]

  # Require a whole directory
  def require_dir(dir, recursive=true)
    glob = recursive ? "#{dir}/**/*" : "#{dir}/*"
    glob_requirable(glob) do |path| require path end
  end

  # Find all requirable files that match the glob
  def glob_requirable(glob, extensions=nil, &block)
    extensions = (extensions || ::Kernel::RequireExtensions).join(',')
    Dir.glob("{#{$LOAD_PATH.join(',')}}/#{glob}{#{extensions}}", &block)
  end

  # Returns the path to the file require would load, also see Kernel#expanded_require_path
  def require_path(name, extensions=nil)
    extensions = (extensions || ::Kernel::RequireExtensions).join(',')
    Dir.glob("{#{$LOAD_PATH.join(',')}}/#{name}{#{extensions}}") { |path|
      return path
    }
    nil
  end

  # Returns the absolute path to the file require would load, also see Kernel#require_path
  def expanded_require_path(name, extensions=nil)
    path = require_path(name, extensions)
    path && File.expand_path(path)
  end

  # Will load the given file like load (but accepts files without .rb in the end, like require),
  # but evaluate it into the module given with the second arg (defaulting to Module.new).
  # It uses Kernel#expanded_require_path with '' and '.rb' as extensions to determine the file to
  # load uses the returned path for error messages (second argument to Module#modul_eval).
  def load_into(name, mod=nil)
    mod ||= Module.new
    path  = expanded_require_path(name, ['', '.rb'])
    raise LoadError, "No such file to load -- #{name}" unless path
    mod.module_eval(File.read(path), path)

    mod
  end

  module_function :require_dir,
                  :glob_requirable,
                  :require_path,
                  :expanded_require_path,
                  :load_into
end