Not an entirely implausible thing to want, I'll ponder what the nicest way to have that incorporated would be. Thanks for the suggestion.

@kinnison I'd like to try and tackle this!

I'm thinking I'll need to add an .arg in the cli() function. Then if that arg is present, print what we think the path is and return early from rustup_mode::main()?

I think I'd probably prefer a patch which added the RUSTUP_HOME to the output of rustup show and added rustup show home akin to rustup show active-toolchain.

Do you think you could do that instead?

So something like:

$ rustup show
Default host: x86_64-unknown-linux-gnu
rustup home: /home/fisher/.rustup

...

And

$ rustup show home
/home/fisher/.rustup

?

I can try that!

@fisherdarling Yep that kind of thing indeed.