vitling / no-nonsense-options Goto Github PK

I see two main areas to improve

1. Allow FieldParsers to be self-describing, so they can give hints as to the format in which they expect input.
2. Field-level annotations to add a wordier description.

I'd say (1) is highest priority, as it creates benefit for the general case; whereas (2) increases the complexity of the API and only helps in specific cases. Both should probably be possible though.

There is currently no way to pass through "main parameter" varargs, as might be expanded from a shell wildcard like "*.txt".

Possible mechanisms include:

• A magic-named parameter which implies it'll take all the remaining args and parse them into a Seq
• Allowing arbitrary varags by the possibility of multiple values for each --
• Specialisation of the last arg at the type level by special-casing Seq[T] :: HNil
• Annotation to suggest that a field should accept the "everything else" varargs.

This is a PITA with Maven, but also sbt is its own PITA.