feat(cli): recommend matching commands

[jamesgeorge007]

• Type of contribution: feature

yargs provides out of the box support to help out the users if they mistype a command.

[jamesgeorge007]

Not sure what leads to the CI failure 🤔

It works like a charm on my local machine though:-

[gantoine]

Neat! What does that look like with yargs? Does it auto-guess the right command, or output Did you mean xxxx?

For reference, the error in Travis is Cannot call commands.reduce(...).demand(...).strict().recommendCommands because property recommendCommands is missing in Yargs [1].

[jamesgeorge007]

Neat! What does that look like with yargs? Does it auto-guess the right command, or output Did you mean xxxx?

For reference, the error in Travis is Cannot call commands.reduce(...).demand(...).strict().recommendCommands because property recommendCommands is missing in Yargs [1].

#3700 (comment)

[valscion]

@jamesgeorge007 the error you're seeing is due to the recommendedCommands not being there in the yargs types 😄 https://github.com/flow-typed/flow-typed/blob/9facc3c967bb79251450f84e94746d7a71b526fd/definitions/npm/yargs_v4.x.x/flow_v0.104.x-/yargs_v4.x.x.js

Note that flow-typed CLI uses the types that are in this folder: https://github.com/flow-typed/flow-typed/tree/master/cli/flow-typed

[gantoine]

My bad, missed that the first time around! So I guess the types in the folder used by the CLI need to be updated as well, as part of this PR. I'm going to assume the current definition for yargs includes those changes(?), and can probably be copied in.