feat: Experiemtal annotated argparse#1666
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Adds @with_annotated decorator that builds argparse parsers from type-annotated function signatures. Supports Annotated[T, Argument(...)] / Annotated[T, Option(...)] metadata, automatic positional/option detection, optional unwrapping, collections, enums, literals, Path completion, subcommands via subcommand_to=, base_command=True with cmd2_handler dispatch, and argument/mutually-exclusive groups. - New module cmd2/annotated.py with Argument, Option, with_annotated, and build_parser_from_function helpers - Comprehensive test suite in tests/test_annotated.py - Example in examples/annotated_example.py - Docs updates in docs/features/argument_processing.md
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #1666 +/- ##
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+ Coverage 99.55% 99.58% +0.03%
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Files 22 23 +1
Lines 4920 5345 +425
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+ Hits 4898 5323 +425
Misses 22 22
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I plan to review this PR this weekend. @kmvanbrunt @bambu I'd very much appreciate your feedback as well. |
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Adds
@with_annotated, a type-hint-driven alternative to@with_argparserthat builds the parser automatically from a command's signature (positional/option inference, enum/literal/path/collection handling, subcommands, groups, mutex). Marked experimental.cmd2/annotated.pyplusArgument/Optionmetadata classes exported fromcmd2dry_run→--dry-run); opt out viaOption("--my_flag")docs/features/annotated.mdwith an experimental admonition;argument_processing.mdkeeps a short pointerexamples/annotated_example.pyand test suite intests/test_annotated.py