Support command chaining

[epage]

Issue by fkrauthan
Tuesday Nov 24, 2020 at 18:04 GMT
Originally opened as clap-rs/clap#2222

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Describe your use case

I would like to re-write an existing internal Python tool in rust. For this python tool we use click with the command chaining feature (https://click.palletsprojects.com/en/7.x/commands/#multi-command-chaining) this allows similar to some bigger CLI tools (e.g. gradle or setup.py) to execute multiple commands in one go. In our example we have a simple build and deploy tool and people often call it ether via ./tool build start or via ./tool start logs etc to trigger different functionality in one go. Where build would build our system; start would startup the code locally and logs would tail the logs.

Describe the solution you'd like

A simple switch that allows me to enable command chaining. I am ok with that prevents me from using sub commands and instead I can only use one level of commands. Examples of implementations are:

• Click in Python
• clikt in Kotlin