65 lines
2.1 KiB
Nix
65 lines
2.1 KiB
Nix
{
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description = "An over-engineered Hello World in C";
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# Nixpkgs / NixOS version to use.
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inputs = {
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nixpkgs.url = "github:nixos/nixpkgs";
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flake-utils.url = "github:numtide/flake-utils";
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};
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outputs = { self, nixpkgs, flake-utils }:
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let
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lastModifiedDate = self.lastModifiedDate or self.lastModified or "19700101";
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# Generate a user-friendly version number for our target.
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version = builtins.substring 0 8 lastModifiedDate;
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# System types to support.
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supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
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# Helper function to generate an attrset '{ x86_64-linux = f "x86_64-linux"; ... }'.
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forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
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# Nixpkgs instantiated for supported system types.
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nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; overlays = [ self.overlay ]; });
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in
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flake-utils.lib.eachDefaultSystem (system:
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let
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pkgs = import nixpkgs {
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inherit system;
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overlays = [
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(final: prev: {
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hello = with final; stdenv.mkDerivation rec {
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pname = "hello";
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inherit version;
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src = ./.;
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nativeBuildInputs = [ autoreconfHook ];
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};
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})
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];
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};
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in rec {
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packages = { inherit (pkgs) hello; };
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packages.default = self.packages.${system}.hello;
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packages.container = pkgs.dockerTools.buildImage {
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name = "hello";
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tag = "0.1.0";
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created = "now";
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copyToRoot = pkgs.buildEnv {
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name = "image-root";
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paths = [ packages.default ];
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pathsToLink = [ "/bin" ];
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};
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config.Cmd = [ "${packages.default}/bin/hello" ];
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};
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apps.hello = flake-utils.lib.mkApp { drv = packages.hello; };
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defaultApp = apps.hello;
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# devShells.default = import ./shell.nix { inherit pkgs; };
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}
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);
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}
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