72 lines
2.3 KiB
Nix
72 lines
2.3 KiB
Nix
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{
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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flake-utils = {
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url = "github:numtide/flake-utils";
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};
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rust-overlay = {
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url = "github:oxalica/rust-overlay";
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inputs = {
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nixpkgs.follows = "nixpkgs";
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flake-utils.follows = "flake-utils";
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};
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};
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crane = {
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url = "github:ipetkov/crane";
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inputs = {
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nixpkgs.follows = "nixpkgs";
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};
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};
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};
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outputs = { self, nixpkgs, flake-utils, rust-overlay, crane }:
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flake-utils.lib.eachDefaultSystem
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(system:
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let
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overlays = [ (import rust-overlay) ];
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pkgs = import nixpkgs {
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inherit system overlays;
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};
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rustToolchain = pkgs.pkgsBuildHost.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
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# this is how we can tell crane to use our toolchain!
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craneLib = (crane.mkLib pkgs).overrideToolchain rustToolchain;
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# cf. https://crane.dev/API.html#libcleancargosource
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src = craneLib.cleanCargoSource ./hello-world;
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# as before
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nativeBuildInputs = with pkgs; [ rustToolchain pkg-config ];
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buildInputs = with pkgs; [ openssl sqlite ];
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# because we'll use it for both `cargoArtifacts` and `bin`
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commonArgs = {
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inherit src buildInputs nativeBuildInputs;
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};
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cargoArtifacts = craneLib.buildDepsOnly commonArgs;
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# remember, `set1 // set2` does a shallow merge:
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bin = craneLib.buildPackage (commonArgs // {
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inherit cargoArtifacts;
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});
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dockerImage = pkgs.dockerTools.buildImage {
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name = "hello-world";
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tag = "latest";
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copyToRoot = [ bin ];
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config = {
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Cmd = [ "${bin}/bin/hello-world" ];
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};
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};
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in
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with pkgs;
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{
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packages =
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{
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# that way we can build `bin` specifically,
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# but it's also the default.
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inherit bin dockerImage;
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default = bin;
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};
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devShells.default = mkShell {
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# instead of passing `buildInputs` / `nativeBuildInputs`,
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# we refer to an existing derivation here
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inputsFrom = [ bin ];
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buildInputs = with pkgs; [ dive docker shadow ];
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};
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}
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);
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}
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