34 lines
1.2 KiB
Nix
34 lines
1.2 KiB
Nix
let
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# import niv packages
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sources = import ./nix/sources.nix;
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overlay = _: pkgs:
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{ niv = import sources.niv {}; # use the sources :)
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};
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# Import the Haskell.nix library,
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#pkgs = import <nixpkgs> (import (builtins.fetchTarball https://github.com/input-output-hk/haskell.nix/archive/master.tar.gz));
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pkgs = import sources.nixpkgs (
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overlays = [ overlay ];
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config = {};
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import (builtins.fetchTarball https://github.com/input-output-hk/haskell.nix/archive/master.tar.gz)
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);
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# Import the file you will create in the stack-to-nix or cabal-to-nix step.
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my-pkgs = import ./pkgs.nix;
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# Cabal projects use this:
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pkgSet = pkgs.haskell-nix.mkCabalProjectPkgSet {
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plan-pkgs = my-pkgs;
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pkg-def-extras = [];
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modules = [
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# specific package overrides would go here
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# example:
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# packages.cbors.package.ghcOptions = "-Werror";
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# packages.cbors.patches = [ ./one.patch ];
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# packages.cbors.flags.optimize-gmp = false;
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# It may be better to set flags in `cabal.project` instead
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# (`plan-to-nix` will include them as defaults).
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];
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};
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in pkgSet.config.hsPkgs // { _config = pkgSet.config; }
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