Need a way to specify toolchain channel for each hook

[zackw]

I'm tinkering with a project, right now, which compiles fine with stable rust, but its rustfmt configuration uses a whole bunch of options that are only available with nightly rustfmt. I don't want to switch my default toolchain to nightly just for the sake of this project. It would be nice if it were possible to specify, in .pre-commit-config.yaml for this project, that the fmt hook should run cargo +nightly fmt instead of cargo fmt.

This doesn't appear to be possible with the args array because that's inserted too late on the command line, e.g.

  hooks:
    - id: fmt
      args: ["+nightly"]

gives an error message about there not being any file named +nightly.

[olexiyb]

the hooks using default toolchain enabled on your system, If you want to check your code against different platforms it will be better to do using Github Actions for example

https://github.com/logannc/fuzzywuzzy-rs/blob/master/.github/workflows/clippy.yml

[danieleades]

that's a shame this isn't supported. i'm using nightly clippy and nightly rustfmt, and stable otherwise.

[krruzic]

Adding this is really simple, just fork the repo and change the entry: lines in hooks.yaml to say cargo +nightly ... instead. I've done it on my fork.

[danieleades]

Adding this is really simple, just fork the repo and change the entry: lines in hooks.yaml to say cargo +nightly ... instead. I've done it on my fork.

i think the issue is wanting to use different toolchains for different checks.

[zackw]

i think the issue is wanting to use different toolchains for different checks.

yes, exactly.