Class: ManageYaml::MkNodeEdge

Inherits:
Object
  • Object
show all
Defined in:
lib/mk_semi_lattice/manage_yaml/mk_node_edge_yaml.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(input_path:, output_path:) ⇒ MkNodeEdge

Returns a new instance of MkNodeEdge.



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# File 'lib/mk_semi_lattice/manage_yaml/mk_node_edge_yaml.rb', line 5

def initialize(input_path:, output_path:)
  dir_tree = YAML.load_file(input_path)
  nodes = []
  edges = []
  id_counter = { val: 1 }

  root_name = dir_tree.keys.first
  top_path = root_name
  traverse(dir_tree, nil, nodes, edges, id_counter, '.', top_path)

  output = { nodes: nodes, edges: edges }

  # クラスメソッドとして呼び出す
  yaml_str_with_comments = self.class.add_edge_comments(output)

  File.write(output_path, yaml_str_with_comments)
end

Class Method Details

.add_edge_comments(output) ⇒ Object

クラスメソッド化



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# File 'lib/mk_semi_lattice/manage_yaml/mk_node_edge_yaml.rb', line 24

def self.add_edge_comments(output)
  nodes = output[:nodes]
  edges = output[:edges]
  id_name_map = nodes.each_with_object({}) do |node, map|
    map[node[:id]] = node[:name]
  end

  yaml_lines = output.to_yaml.lines
  new_yaml_lines = []
  edges_section = false
  edges_idx = 0
  edges_count = edges.size

  yaml_lines.each do |line|
    new_yaml_lines << line
    if line.strip == ':edges:'
      edges_section = true
      next
    end
    if edges_section && line.strip.start_with?('- :from:')
      edge = edges[edges_idx]
      from_name = id_name_map[edge[:from]]
      to_name = id_name_map[edge[:to]]
      comment = "# from: #{from_name}, to: #{to_name}"
      new_yaml_lines << "  #{comment}\n"
      edges_idx += 1
      edges_section = false if edges_idx >= edges_count
    end
  end
  new_yaml_lines.join
end

Instance Method Details

#traverse(node, parent_id, nodes, edges, id_counter, current_path, top_path) ⇒ Object 



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# File 'lib/mk_semi_lattice/manage_yaml/mk_node_edge_yaml.rb', line 56

def traverse(node, parent_id, nodes, edges, id_counter, current_path, top_path)
  if node.is_a?(Hash)
    node.each do |name, value|
      node_id = id_counter[:val]
      id_counter[:val] += 1

      type = if name.to_s.end_with?('/')
        'dir'
      else
        value.is_a?(Hash) || value.is_a?(Array) ? 'dir' : 'file'
      end

      p [current_path, name]
      node_path = File.join(current_path, name.to_s)
      rel_path = if node_path == top_path
        '.'
      else
        rp = Pathname.new(node_path).relative_path_from(Pathname.new(top_path)).to_s
        rp.start_with?('.') ? rp : "./#{rp}"
      end

      nodes << {
        :id => node_id,
        :name => name,
        :type => type,
        :file_path => rel_path
      }
      if parent_id
        edges << {
          :from => parent_id,
          :to => node_id
        }
      end

      if value.is_a?(Hash) || value.is_a?(Array)
        traverse(value, node_id, nodes, edges, id_counter, node_path, top_path)
      end
    end
  elsif node.is_a?(Array)
    node.each do |item|
      traverse(item, parent_id, nodes, edges, id_counter, current_path, top_path)
    end
  end
end