Class: Graphomaton::CLI::Config

Inherits:
Object
  • Object
show all
Defined in:
lib/graphomaton/cli/config.rb

Constant Summary collapse

DEFAULT_PATH = 
'.graphomaton.yml'
MAX_BYTES = 
1024 * 1024
FORMAT_SECTIONS = 
%i[svg png pdf webp html mermaid dot plantuml].freeze
ENUM_KEYS = 
%i[
  format input_format theme layout direction fit converter initial_position final_position
  state_shape edge_style arrow_shape state_effect unreachable_zone loop_position diagnostics
].freeze
OPTION_KEYS = 
%i[
  input input_format output format validate no_clobber width height scale converter timeout
  max_output_bytes max_input_bytes max_states max_transitions max_metadata_depth max_label_length
  max_group_depth theme theme_file layout_warnings
  layout direction fit padding node_spacing rank_spacing force_iterations layout_seed
  graphviz_command auto_density_spacing initial_position final_position responsive state_radius
  auto_state_radius min_state_radius max_state_radius state_stroke_width transition_stroke_width
  state_shape edge_style arrow_shape arrow_size state_effect font_family state_font_weight
  transition_font_weight preserve_manual_positions auto_size xml_declaration pretty minify
  css_variables embed_styles svg_id wrap max_transition_label_width state_wrap
  max_state_label_width label_tooltips html_tooltips sort_labels rotate_labels label_padding
  label_radius label_border label_background initial_arrow_length initial_arrow_label
  final_arrow_length final_arrow_label show_final_arrows scc_groups fold_groups
  highlight_unreachable unreachable_zone highlight_dead_states highlight_initial_state
  highlight_final_states loop_position merge_parallel_transitions title description cdn offline
  inline_mermaid lang show_source pan_zoom mathjax mathjax_cdn notes class_defs rank_constraints
  inline_mathjax self_contained nonce csp mermaid_sha256 mathjax_sha256
  fail_on_warning diagnostics strict_semantics
].freeze
LABEL_KEYS = 
{
  wrap: :wrap,
  max_width: :max_transition_label_width,
  max_transition_width: :max_transition_label_width,
  state_wrap: :state_wrap,
  max_state_width: :max_state_label_width,
  tooltips: :label_tooltips,
  html_tooltips: :html_tooltips,
  rotate: :rotate_labels,
  padding: :label_padding,
  radius: :label_radius,
  border: :label_border,
  background: :label_background
}.freeze

Class Method Summary collapse

Class Method Details

.load(path, format: nil, required: false) ⇒ Object 



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# File 'lib/graphomaton/cli/config.rb', line 47

def self.load(path, format: nil, required: false)
  return {} if path.nil?
  return {} unless File.exist?(path) || required

  payload = File.open(path, 'rb') { |input| input.read(MAX_BYTES + 1) }
  raise ArgumentError, "Config exceeds #{MAX_BYTES} bytes" if payload.bytesize > MAX_BYTES

  parsed = YAML.safe_load(payload, permitted_classes: [Symbol], aliases: false) || {}
  raise ArgumentError, 'Config root must be a mapping' unless parsed.is_a?(Hash)

  normalized = symbolize_hash(parsed)
  unknown_sections = normalized.keys - OPTION_KEYS - [:render] - FORMAT_SECTIONS
  raise ArgumentError, "Unknown config keys: #{unknown_sections.join(', ')}" unless unknown_sections.empty?

  common = normalized.reject { |key, _value| key == :render || FORMAT_SECTIONS.include?(key) }
  render = mapping(normalized[:render], 'render')
  format_options = format ? mapping(normalized[format.to_sym], format) : {}
  normalize_options(common.merge(render).merge(format_options))
rescue Psych::Exception, SystemCallError => e
  raise ArgumentError, "Config error: #{e.message}"
end