Method: CemDataProcessor::Parser::ResourceDataParser#parse

Defined in:
lib/cem_data_processor/parser.rb

#parse ⇒ Array

Parse the Hiera data into a Hash used by Puppet to create the resources. The way this works is by first creating a DAG and adding all resources to the graph as vertices, with an edge for each resource pointing from a dummy node, :root, to the resource. We then add edges to the graph based on the ‘before_me` and `after_me` lists of each resource and remove the :root-connected edges for each resource that has a `before_me` list, and remove the :root-connected edges for each resource in a `after_me` list. Finally, we sort the graph into an Array populated with a single Hash of ordered resources and return that Hash. rubocop:disable Metrics/MethodLength

Returns:

  • (Array) —

    A sorted array of resource hashes.



100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
 
# File 'lib/cem_data_processor/parser.rb', line 100

def parse
  @hiera_data.each do |name, data|
    resource = CemDataProcessor::Parser.new_resource(name, data, @control_maps)
    add_control_names(resource)
    add_dependent_mapping(resource) # Map any controls this resource depends on
    @resources.add_vertex(resource) # Add all the resources to the graph
    @resources.add_edge(:root, resource) # Establish the root -> resource edges
    add_edge_ordering(resource) # Add resource ordering edges
  end
  # If the resource should be filtered (i.e. only or ignore), remove it from the graph.
  filter_resources!
  # Verify that all dependent resources are in the graph, remove them if not.
  remove_unsatisfied_dependents!
  # Sort the graph and return the array of ordered resource hashes
  sort_resources.map do |r|
    r.add_control_configs(@control_configs)
    resource_data(r)
  end
end