clap_generate an incorrect autocomplete zsh script

[mothsART]

Please complete the following tasks

• I have searched the discussions
• I have searched the existing issues

Rust Version

rustc 1.53.0-nightly

Clap Version

master

Minimal reproducible code

Hi, I tried to generate on my little project https://github.com/mothsART/pouf autocompletion on zsh.

Cargo build produce this file :
https://github.com/mothsART/pouf/blob/8335f28d5ea9c6a3916a3d5098481e3aaab9f45d/_pouf

and I included with :

source _pouf

This produce an error like :

_arguments:comparguments:312: can only be called from completion function

If i manualy delete _pouf "$@", everything seems correct.

Same issue with 2 opposite version of Zsh :
Zsh 5.1 and 5.8 (the last one).

Finally, the script suggest me

compdef _pouf pouf

but it doesn't work.
I replace it with :

compdef _pouf pouf

Steps to reproduce the bug with the above code

cargo build

Actual Behaviour

https://github.com/mothsART/pouf/blob/8335f28d5ea9c6a3916a3d5098481e3aaab9f45d/_pouf

Expected Behaviour

https://github.com/mothsART/pouf/blob/7e464e21f0a46795c83026511980f7c18de27dbb/_pouf

Additional Context

No response

Debug Output

No response

[ajeetdsouza]

Finally, the script suggest me

compdef _pouf pouf

but it doesn't work.
I replace it with :

compdef _pouf pouf

You've mentioned the same thing twice. Also, I'm not sure what is incorrect about the script, it works fine for me.

[pksunkara]

It might be a zsh version issue.

[ajeetdsouza]

Perhaps. I'm running zsh 5.8, which appears to be the latest release.

[mothsART]

1. I'm using zsh 5.8 too.

2. the script suggest me (sorry for duplicate) :

#compdef pouf

and not

#compdef _pouf pouf

3. When I see your screenshot @ajeetdsouza, i think you've cloning my github project and checkout on "master" branch, right ?
   It's not what I report.

I've report a specific commit. (and the solution in the other hand)
Master branch works actually because i have temporaly monkey patch the build process here : https://github.com/mothsART/pouf/blob/master/build.rs#L20

[ajeetdsouza]

Could you share how you're sourcing the completion script? I'm using clap v3 completions in zoxide, and they're working fine on zsh. See my completions file here.

AFAIK, a completion script is sourced by adding the containing folder to $fpath:

fpath=("$HOME/ws/zoxide/contrib/completions" "${fpath[@]}")

[mothsART]

Like I say on first comment, I used :

source "$HOME_pouf

fpath doesn't work... I guess beacuse error isn't show.

[ajeetdsouza]

Have you called compinit after setting fpath?

autoload -Uz compinit && compinit

I don't think you're supposed to source completions.

[mothsART]

Hum, right : my autoload is called before my fpath.
Works nice but some documentation would be great : zsh configuration seems not intuitive.

[ajeetdsouza]

Agreed, that's why I created #2488.