class LegacyFacter::Core::DirectedGraph

Public Instance Methods

acyclic?() click to toggle source
# File lib/facter/custom_facts/core/directed_graph.rb, line 10
def acyclic?
  cycles.empty?
end
cycles() click to toggle source
# File lib/facter/custom_facts/core/directed_graph.rb, line 14
def cycles
  cycles = []
  each_strongly_connected_component do |component|
    cycles << component if component.size > 1
  end
  cycles
end
tsort() click to toggle source
Calls superclass method
# File lib/facter/custom_facts/core/directed_graph.rb, line 30
def tsort
  missing = Set.new(values.flatten) - Set.new(keys)

  unless missing.empty?
    raise MissingVertex, "Cannot sort elements; cannot depend on missing elements #{missing.to_a}"
  end

  super
rescue TSort::Cyclic
  raise CycleError, "Cannot sort elements; found the following cycles: #{cycles.inspect}"
end
tsort_each_child(node) { |child| ... } click to toggle source
# File lib/facter/custom_facts/core/directed_graph.rb, line 24
def tsort_each_child(node)
  fetch(node, []).each do |child|
    yield child
  end
end