Contents

module Pairtree
  class Path
    @@leaf_proc = lambda { |id| id }
    
    def self.set_leaf value = nil, &block
      if value.nil?
        @@leaf_proc = block
      else
        if value.is_a?(Proc)
          @@leaf_proc = value
        else
          @@leaf_proc = lambda { |id| value }
        end
      end
    end
    
    def self.leaf id
      if @@leaf_proc
        Pairtree::Identifier.encode(@@leaf_proc.call(id))
      else
        ''
      end
    end
    
    def self.id_to_path id
      path = File.join(Pairtree::Identifier.encode(id).scan(/..?/),self.leaf(id))
      path.sub(%r{#{File::SEPARATOR}+$},'')
    end

    def self.path_to_id ppath
      parts = ppath.split(File::SEPARATOR)
      parts.pop if @@leaf_proc and parts.last.length > Root::SHORTY_LENGTH
      Pairtree::Identifier.decode(parts.join)
    end
    
    def self.remove! path
      FileUtils.remove_dir(path, true)
      parts = path.split(File::SEPARATOR)
      parts.pop
      while parts.length > 0 and parts.last != 'pairtree_root'
        begin
          FileUtils.rmdir(parts.join(File::SEPARATOR))
          parts.pop
        rescue SystemCallError
          break
        end
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 2 rubygems

Version	Path
rpairtree-0.2.0	lib/pairtree/path.rb
pairtree-0.1.0	lib/pairtree/path.rb