require "rscons/builder"
require "rscons/cache"
require "rscons/environment"
require "rscons/varset"
require "rscons/version"

require "rscons/monkey/string"

# default builders
require "rscons/builders/library"
require "rscons/builders/object"
require "rscons/builders/program"

# Namespace module for rscons classes
module Rscons
  DEFAULT_BUILDERS = [
    :Library,
    :Object,
    :Program,
  ]

  class BuildError < RuntimeError; end

  # Remove all generated files
  def self.clean
    cache = Cache.new
    # remove all built files
    cache.targets.each do |target|
      FileUtils.rm_f(target)
    end
    # remove all created directories if they are empty
    cache.directories.sort {|a, b| b.size <=> a.size}.each do |directory|
      next unless File.directory?(directory)
      if (Dir.entries(directory) - ['.', '..']).empty?
        Dir.rmdir(directory) rescue nil
      end
    end
    Cache.clear
  end
end