Class: Pairtree::Path

Inherits:
Object
  • Object
show all
Defined in:
lib/pairtree/path.rb

Constant Summary collapse

@@leaf_proc = 
lambda { |id| id }

Class Method Summary collapse

Class Method Details

.id_to_path(id) ⇒ Object 



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# File 'lib/pairtree/path.rb', line 25

def self.id_to_path id
  path = File.join(Pairtree::Identifier.encode(id).scan(/..?/),self.leaf(id))
  path.sub(%r{#{File::SEPARATOR}+$},'')
end

.leaf(id) ⇒ Object 



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# File 'lib/pairtree/path.rb', line 17

def self.leaf id
  if @@leaf_proc
    Pairtree::Identifier.encode(@@leaf_proc.call(id))
  else
    ''
  end
end

.path_to_id(ppath) ⇒ Object 



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# File 'lib/pairtree/path.rb', line 30

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

.remove!(path) ⇒ Object 



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# File 'lib/pairtree/path.rb', line 36

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

.set_leaf(value = nil, &block) ⇒ Object 



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# File 'lib/pairtree/path.rb', line 5

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