Cli: Feature: "Did you mean" hint on wrong command or flag

[saschagrunert]

We could tell the user what the closest command or argument match is by calculating the levenshtein distance between them.

What to do you think?

[AudriusButkevicius]

Should be optional tho

[asahasrabuddhe]

Good idea for a new feature. I always loved how git suggests this to us in case of a typo. I also agree that this needs to be optional where a user can enable this probably by a boolean flag if they feel they need it for their CLI.

[lynncyrin]

I'd love this!!!

[lynncyrin]

Related to the conversation in https://github.com/urfave/cli/issues/826, I'd like to propose we only consider this feature for v2 🙏

[saschagrunert]

Sounds good, I suggest to use a third party library to provide the necessary algorithms around it.

[lynncyrin]

Sounds good, I suggest to use a third party library to provide the necessary algorithms around it.

I'm in strong agreement here!

[saschagrunert]

I found three main packages which all seem a bit unmaintained:

• https://github.com/toldjuuso/go-jaro-winkler-distance
• https://github.com/xrash/smetrics
• https://github.com/antzucaro/matchr

From an implementation perspective I tend to use the Jaro-Winkler distance to match the closet command/flag.

To start with a clean state I added go module support to matchr: https://github.com/antzucaro/matchr/pull/10

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Closing this as it has become stale.

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This issue or PR has been bumped and is no longer marked as stale! Feel free to bump it again in the future, if it's still relevant.

[lynncyrin]

This issue has a PR here! => https://github.com/urfave/cli/pull/977

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This issue or PR has been automatically marked as stale because it has not had recent activity. Please add a comment bumping this if you're still interested in it's resolution! Thanks for your help, please let us know if you need anything else.

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Closing this as it has become stale.