Method: ZK::Client::Unixisms#mkdir_p

Defined in:
lib/zk/client/unixisms.rb

#mkdir_p(path, opts = {}) ⇒ Object

Creates all parent paths and 'path' in zookeeper as persistent nodes with zero data.

Examples:


zk.exists?('/path')
# => false

zk.mkdir_p('/path/to/blah')
# => "/path/to/blah"

Parameters:

  • path (String) —

    An absolute znode path to create

  • opts (Hash) (defaults to: {}) —

    a customizable set of options

Options Hash (opts):

  • :data (String) — default: '' —

    The data to place at path



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# File 'lib/zk/client/unixisms.rb', line 22

def mkdir_p(path, opts={})
  data = ''

  # if we haven't recursed, or we recursed and now we're back at the top
  if !opts.has_key?(:orig_path) or (path == opts[:orig_path])
    data = opts.fetch(:data, '')  # only put the data at the leaf node
  end

  create(path, data, :mode => :persistent)
rescue NodeExists
  if !opts.has_key?(:orig_path) or (path == opts[:orig_path])  # we're at the leaf node
    set(path, data)
  end

  return
rescue NoNode
  if File.dirname(path) == '/'
    # ok, we're screwed, blow up
    raise NonExistentRootError, "could not create '/', are you chrooted into a non-existent path?", caller
  end

  opts[:orig_path] ||= path

  mkdir_p(File.dirname(path), opts)
  retry
end