AdventOfCode/flake.nix

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Nix
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2020-11-06 16:27:11 +01:00
{
description = "A Nix-flake-based Rust development environment";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
treefmt-nix = {
url = "github:numtide/treefmt-nix";
inputs.nixpkgs.follows = "nixpkgs";
};
fenix = {
url = "github:nix-community/fenix";
inputs.nixpkgs.follows = "nixpkgs";
};
};
outputs =
{
self,
nixpkgs,
treefmt-nix,
fenix,
}:
let
supportedSystems = [
"x86_64-linux"
"aarch64-linux"
"x86_64-darwin"
"aarch64-darwin"
];
forEachSupportedSystem =
f:
nixpkgs.lib.genAttrs supportedSystems (
system:
f (
let
pkgs = import nixpkgs { inherit system; };
fenix' = (import fenix { inherit system pkgs; });
toolchain = fenix'.minimal;
in
{
inherit pkgs toolchain;
}
)
);
in
{
formatter = forEachSupportedSystem (
{ pkgs, ... }: (treefmt-nix.lib.evalModule pkgs ./treefmt.nix).config.build.wrapper
);
devShells = forEachSupportedSystem (
{ pkgs, toolchain }:
{
default = pkgs.mkShell {
LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath [
pkgs.openssl
];
PKG_CONFIG_PATH = "${pkgs.openssl.dev}/lib/pkgconfig";
packages =
[
pkgs.pkg-config
]
++ [
toolchain.cargo
toolchain.rustc
];
};
}
);
};
}