clang-uml/docs/configuration_file.md

Configuration file reference

• Top level options
  • Diagram options
• Example complete config
• Paths

Top level options

• compilation_database_dir - path to the directory containing compile_commands.json
• output_directory - path to the directory where PlantUML diagrams will be generated
• diagrams - the map of diagrams to be generated, each diagram name is provided as the key of the diagram YAML node
• debug_mode - add inline debug information in the generated diagrams

Diagram options

• type - type of diagram, one of [class, sequence, package, include]
• glob - list of glob patterns to match source code files for analysis
• include_relations_also_as_members - when set to false, class members for relationships are rendered in UML are skipped from class definition (default: true)
• generate_method_arguments - determines whether the class diagrams methods contain full arguments (full), are abbreviated (abbreviated) or skipped (none)
• using_namespace - similar to C++ using namespace, a A::B value here will render a class A::B::C::MyClass in the diagram as C::MyClass, at most 1 value is supported
• include - definition of inclusion patterns:
  • namespaces - list of namespaces to include
  • relationships - list of relationships to include
  • elements - list of elements, i.e. specific classes, enums, templates to include
  • access - list of visibility scopes to include (e.g. private)
  • subclasses - include only subclasses of specified classes (and themselves)
  • specializations - include all specializations or instantiations of a given template
  • dependants - include all classes, which depend on the specified class
  • dependencies - include all classes, which are dependencies of the specified class
  • context - include only entities in direct relationship with specified classes
• exclude - definition of exclusion patterns:
  • namespaces - list of namespaces to exclude
  • relationships - list of relationships to exclude
  • elements - list of elements, i.e. specific classes, enums, templates to exclude
  • access - list of visibility scopes to exclude (e.g. private)
  • subclasses - exclude subclasses of specified classes (and themselves)
  • specializations - exclude all specializations or instantiations of a given template
  • dependants - exclude all classes, which depend on the specified class
  • dependencies - exclude all classes, which are dependencies of the specified class
  • context - exclude only entities in direct relationship with specified classes
• layout - add layout hints for entities (classes, packages)
• plantuml - verbatim PlantUML directives which should be added to a diagram
  • before - list of directives which will be added before the generated diagram
  • after - list of directives which will be added after the generated diagram

Example complete config

# Directory containing the compile_commands.json file
compilation_database_dir: debug
# The directory where *.puml files will be generated
output_directory: docs/diagrams
# Set this as default for all diagrams
generate_method_arguments: none
# Enable generation of hyperlinks to diagram elements
generate_links:
  # Link pattern
  link: "https://github.com/bkryza/clang-uml/blob/{{ git.commit }}/{{ element.source.path }}#L{{ element.source.line }}"
  # Tooltip pattern
  tooltip: "{{ element.name }}"
# The map of diagrams - keys are also diagram file names
diagrams:
  main_package:
    # Include this diagram definition from a separate file
    include!: uml/main_package_diagram.yml
  config_class:
    type: class
    # Do not include rendered relations in the class box
    include_relations_also_as_members: false
    # Limiting the number of files to include can significantly
    # improve the generation time
    glob:
      - src/common/model/*.h
      - src/common/model/*.cc
      - src/class_diagram/model/*.h
      - src/class_diagram/model/*.cc
    include:
      # Only include entities from the following namespaces
      namespaces:
        - clanguml::common::model
        - clanguml::class_diagram::model
      # Only include elements in direct relationship with ClassA
      context:
        - ClassA
    exclude:
      # Do not include private members and methods in the diagram
      access:
        - private
    layout:
      # Add layout hints for PlantUML
      ClassA:
        - up: ClassB
        - left: ClassC
    # Specify customized relationship hints for types which are
    # arguments in template instantiations
    relationship_hints:
      # All tuple arguments should be treated as aggregation
      std::tuple: aggregation
      # All some_template arguments should be treated as associations
      # except for arguments with indexes 2 and 10
      ns1::n2::some_template:
        default: association
        2: composition
        10: aggregation          
    # Entities from this namespace will be shortened
    # (can only contain one element at the moment)
    using_namespace:
      - clanguml::class_diagram::model
    plantuml:
      # Add this line to the beginning of the resulting puml file
      before:
        - 'title clang-uml class diagram model'

Paths

By default, all paths specified in the configuration file, including:

• glob
• output_directory
• compilation_database_dir
• paths filter

are relative to the parent directory of the configuration file. This can be changed in the following ways:

• by specifying relative_to option in the configuration file
• by providing --paths-relative-to-pwd command line option, in which case all paths will be relative to the directory where clang-uml is executed (this only makes sense for automation where clang-uml is executed from the same location relative to the project directory