nixify

1 files changed, 79 insertions, 0 deletions

diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..0417539
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,79 @@
+{
+  description = "Reluax, a LuaX web framework";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    naersk.url = "github:nmattia/naersk";
+    naersk.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = { self, nixpkgs, naersk }:
+    let
+      cargoToml = (builtins.fromTOML (builtins.readFile ./Cargo.toml));
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" ];
+      forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f system);
+    in
+    {
+      overlay = final: prev: {
+        "${cargoToml.package.name}" = final.callPackage ./. { inherit naersk; };
+      };
+
+      packages = forAllSystems (system:
+        let
+          pkgs = import nixpkgs {
+            inherit system;
+            overlays = [
+              self.overlay
+            ];
+          };
+        in
+        {
+          "${cargoToml.package.name}" = pkgs."${cargoToml.package.name}";
+        });
+
+
+      defaultPackage = forAllSystems (system: (import nixpkgs {
+        inherit system;
+        overlays = [ self.overlay ];
+      })."${cargoToml.package.name}");
+
+      checks = forAllSystems (system:
+        let
+          pkgs = import nixpkgs {
+            inherit system;
+            overlays = [
+              self.overlay
+            ];
+          };
+        in
+        {
+          format = pkgs.runCommand "check-format"
+            {
+              buildInputs = with pkgs; [ rustfmt cargo ];
+            } ''
+            ${pkgs.rustfmt}/bin/cargo-fmt fmt --manifest-path ${./.}/Cargo.toml -- --check
+            ${pkgs.nixpkgs-fmt}/bin/nixpkgs-fmt --check ${./.}
+            touch $out # it worked!
+          '';
+          "${cargoToml.package.name}" = pkgs."${cargoToml.package.name}";
+        });
+      devShell = forAllSystems (system:
+        let
+          pkgs = import nixpkgs {
+            inherit system;
+            overlays = [ self.overlay ];
+          };
+        in
+        pkgs.mkShell {
+          inputsFrom = with pkgs; [
+            pkgs."${cargoToml.package.name}"
+          ];
+          buildInputs = with pkgs; [
+            rustfmt
+            nixpkgs-fmt
+          ];
+          LIBCLANG_PATH = "${pkgs.llvmPackages.libclang.lib}/lib";
+        });
+    };
+}
+