[Nix-dev] weird garbage output inside nix-shell

[Roni Choudhury]

Hi all!

I’m using nix-shell to do some development. I have the environment set up
so I can build my code, but I had a question about invoking packages not in
the shell’s environment. For instance, in that shell, when I run vim, I get
output like this:

vim: àΠbü : x    #í : Error 224711464
vim:  }ÿ : xépOö : Error 1320334120

These two lines came from two different invocations - note how the output
seems to be random.

If I include vim in shell.nix, then I don’t see this problem. (I don’t want
to include vim in shell.nix in this case, because I don’t think the choice
of editor is critical to the build environment, etc.)

My main question is: *what is causing this strange output?*

My secondary question: *how do I invoke nix-shell in such a way as to
instantiate the environment specified in shell.nix, plus a few “custom”
packages (such as vim)?*

I guess I should mention that my shell of choice is zsh. When I run
nix-shell I get dropped into a bash shell. From there, if I invoke zsh I’m
back where I want to be. Could that quirk have something to do with this?

Thanks in advance!

roni
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