[Nix-dev] nix-shell with overlay?

[Matthias Beyer]

On 07-03-2017 16:33:15, Profpatsch wrote:
> On 17-03-07 03:57pm, Matthias Beyer wrote:
> > Hi,
> > 
> > is there a way to import an overlay in a default.nix for a nix-shell 
> > and use the packages from the overlay in the nix-shell only, without 
> > installing the overlay "globally" for my user?
> > 
> > If yes, how?
> 
> Not sure what you mean, how about just adding the overlay to the default.nix?
> 
> import <nixpkgs> {
>   overlays: [(self: super: {
>     myDep = super.myDep.override {
>       …
>     };
>     myPkg = self.callPackage ./. {};
>   })];
> }

Ah, nice! But I also have to fetch the overlay in the expression...
(I'm trying to get the rust-overlay from mozilla to work)

-- 
Mit freundlichen Grüßen,
Kind regards,
Matthias Beyer

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