alecthomas/kong

Xor is ignored with positional arguments

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#255 opened on Dec 22, 2021

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enhancementhelp wanted

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Description

I would like to do something like:

run --defaults

or:

run foo bar

but prevent:

run --defaults foo bar

It seems xor for positional arguments (flag with arg:"") does not do anything: there is no error if both are provided.

Contributor guide

Research direction
Examine the Kong library's validation logic for positional arguments, specifically how the 'xor' tag is handled. Trace the code path to identify where mutual exclusivity should be enforced but is being ignored.
Tech stack
go
Domain
cli
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75