From 86e202aff0210b376e2efc590242b6b0eb0c44e0 Mon Sep 17 00:00:00 2001
From: Jake Hillion <jake@hillion.co.uk>
Date: Mon, 29 Apr 2024 21:44:06 +0100
Subject: [PATCH] flake: check package builds

---
 flake.nix | 37 ++++++++++++++++++++-----------------
 1 file changed, 20 insertions(+), 17 deletions(-)

diff --git a/flake.nix b/flake.nix
index 3e538cd..f96a2e3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,24 +11,27 @@
   };
 
   outputs = { self, nixpkgs, flake-utils, treefmt-nix, ... }@inputs:
-    flake-utils.lib.eachDefaultSystem (system:
-      let
-        pkgs = nixpkgs.legacyPackages.$${system};
+    (flake-utils.lib.eachSystem
+      (with flake-utils.lib.system; [ x86_64-linux aarch64-darwin ])
+      (system: { checks.builds = self.packages.$${system}.default; })
+      // flake-utils.lib.eachDefaultSystem (system:
+        let
+          pkgs = nixpkgs.legacyPackages.$${system};
 
-        cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml);
+          cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml);
 
-        treefmtEval = treefmt-nix.lib.evalModule pkgs (pkgs: {
-          projectRootFile = "flake.nix";
-          programs.rustfmt.enable = true;
-          programs.nixfmt.enable = true;
-        });
-      in {
-        packages.default = pkgs.rustPlatform.buildRustPackage {
-          inherit (cargoToml.package) name version;
-          src = ./.;
-          cargoLock.lockFile = ./Cargo.lock;
-        };
+          treefmtEval = treefmt-nix.lib.evalModule pkgs (pkgs: {
+            projectRootFile = "flake.nix";
+            programs.rustfmt.enable = true;
+            programs.nixfmt.enable = true;
+          });
+        in {
+          packages.default = pkgs.rustPlatform.buildRustPackage {
+            inherit (cargoToml.package) name version;
+            src = ./.;
+            cargoLock.lockFile = ./Cargo.lock;
+          };
 
-        formatter = treefmtEval.config.build.wrapper;
-      });
+          formatter = treefmtEval.config.build.wrapper;
+        }));
 }