garage/flake.nix

{
  description =
    "Garage, an S3-compatible distributed object store for self-hosted deployments";

  # Nixpkgs 24.11 as of 2025-01-12 has rustc v1.82
  inputs.nixpkgs.url =
    "github:NixOS/nixpkgs/7c4869c47090dd7f9f1bdfb49a22aea026996815";

  inputs.flake-compat.url = "github:nix-community/flake-compat";

  inputs.flake-utils.url = "github:numtide/flake-utils";

  inputs.crane.url = "github:ipetkov/crane";

  inputs.rust-overlay.url = "github:oxalica/rust-overlay";
  inputs.rust-overlay.inputs.nixpkgs.follows = "nixpkgs";

  outputs = { self, nixpkgs, flake-utils, crane, rust-overlay, ... }:
    let
      git_version = self.lastModifiedDate;
      compile = import ./nix/compile.nix;
    in
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
      in
      {
        packages =
          let
            packageFor = target: release: (compile {
              inherit system git_version target nixpkgs crane rust-overlay release;
            }).garage;
          in
          {
            # default = native release build
            default = packageFor null true;
            # other = cross-compiled, statically-linked builds
            amd64 = packageFor "x86_64-unknown-linux-musl" true;
            i386 = packageFor "i686-unknown-linux-musl" true;
            arm64 = packageFor "aarch64-unknown-linux-musl" true;
            arm = packageFor "armv6l-unknown-linux-musl" true;
            # non-optimized packages
            dev = packageFor null false;
            dev-amd64 = packageFor "x86_64-unknown-linux-musl" false;
            dev-i386 = packageFor "i686-unknown-linux-musl" false;
            dev-arm64 = packageFor "aarch64-unknown-linux-musl" false;
            dev-arm = packageFor "armv6l-unknown-linux-musl" false;
          };

        # ---- developpment shell, for making native builds only ----
        devShells =
          let
            targets = compile {
              inherit system git_version nixpkgs crane rust-overlay;
            };
          in
          {
            default = targets.devShell;

            # import the full shell using `nix develop .#full`
            full = pkgs.mkShell {
              buildInputs = with pkgs; [
                targets.toolchain
                # ---- extra packages for dev tasks ----
                rust-analyzer
                cargo-audit
                cargo-outdated
                cargo-machete
                nixpkgs-fmt
              ];
            };
          };
      });
}