Glob support for rustup toolchain remove

[est31]

I have 63 toolchains, culminating in 40GB of hard drive use. I'd love to remove all nightlies, but I have to add the nightlies one by one. It would be great if one could specify regexes like rustup toolchain remove nightly-*.

[est31]

Workaround: rustup toolchain list | rg ^nightly-20 | xargs rustup toolchain uninstall

[kinnison]

Pattern based support for removing toolchains would be a fun enhancement though as you say you can script it instead.

While I don't feel this needs to be in rustup I'd not object if someone wanted to work on it.

[camelid]

@rustbot claim

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[kinnison]

@camelid We don't use a lot of the integration bots on this repo, so just saying in a comment you want to do this is enough. We're not a massively popular repo for contributions :D

[jyn514]

Personally, I'd rather do this through shell scripting than rustup itself. I don't see much benefit of adding it to rustup directly.

[rami3l]

FYI, now it's easier to parse rustup's output if you want to script the behavior:

• Add a "single column" mode for rustup toolchain list and friends #3519
• feat(cli): add --quiet to rustup toolchain list and friends #3862