v1.8.0dev0

• Add --rich-config option to the rich-click CLI.
• Better typing for option groups and command groups with TypedDict [#156]
• Lazy load Rich to reduce overhead when not rendering help text. [#154]
• Some internal refactors. These refactors are aimed at making the abstractions more maintainable over time, more consistent, and more adept for advanced used cases.
  • rich_click.py is exclusively the global config; all formatting has been moved to rich_help_rendering.py.
  • RichCommand now makes use of methods in the super class: format_usage, format_help_text, format_options, and format_epilog.
  • Global formatter object has been removed from the code.
  • highlighter is now constructed by the RichHelpFormatter rather than being inside the config object.
• Added RichHelpConfiguration.load_from_globals() classmethod, which pulls all configuration from rich_click.py.
• Fix bug with regex highlighter for options and switches.
• RichHelpConfiguration() is now asserted to be JSON serializable, as an option for porting configurations. That said, serialization is not a fully supported feature of the high-level API, so serialize the config at your own risk.
  • Related: highlighter is now deprecated in RichHelpConfiguration; please use highlighter_patterns instead.
• Moved exclusively to pyproject.toml and removed setup.py / setup.cfg; thank you @Stealthii!
• Moved to text_markup: Literal["markdown", "rich", None] instead of booleans.
• Fixed bug where CLI errors did not output to stderr.