flake: use flake-utils

Signed-off-by: Sefa Eyeoglu <[email protected]>

Author: Scrumplex

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -141,3 +141,4 @@ stack.yml
 .github/workflows/build_docker.yml
 
 result
+.direnv/

development.nix

@@ -0,0 +1,32 @@
+{
+  flake-utils,
+  nixpkgs,
+  self,
+  treefmt-nix,
+  ...
+}:
+flake-utils.lib.eachDefaultSystem (
+  system:
+  let
+    pkgs = nixpkgs.legacyPackages.${system};
+    inherit (pkgs.lib) mapAttrs' nameValuePair;
+
+    treefmtEval = treefmt-nix.lib.evalModule pkgs ./treefmt.nix;
+
+    devShellChecks = mapAttrs' (n: nameValuePair "devShell-${n}") self.devShells.${system};
+  in
+  {
+    devShells.default = pkgs.mkShell {
+      inputsFrom = [ self.packages.${system}.default ];
+      packages = [
+        pkgs.ruff
+      ];
+    };
+
+    checks = devShellChecks // {
+      formatting = treefmtEval.config.build.check self;
+    };
+
+    formatter = treefmtEval.config.build.wrapper;
+  }
+)

flake.lock

@@ -2,23 +2,20 @@
   description = "Description for the project";
 
   inputs = {
-    flake-parts.url = "github:hercules-ci/flake-parts";
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    treefmt-nix = {
+      url = "github:numtide/treefmt-nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs =
-    inputs@{ flake-parts, ... }:
-    flake-parts.lib.mkFlake { inherit inputs; } {
-      systems = [
-        "x86_64-linux"
-        "aarch64-linux"
-      ];
-
-      imports = [
-        ./nix/checks
-        ./nix/formatter.nix
-        ./nix/nixosModules
-        ./nix/packages
-      ];
-    };
+    { flake-utils, ... }@inputs:
+    flake-utils.lib.meld inputs [
+      ./development.nix
+      ./nixos
+      ./pkgs
+      ./pkgs/overlay.nix
+    ];
 }

flake.nix

@@ -0,0 +1,49 @@
+{
+  flake-utils,
+  nixpkgs,
+  self,
+  ...
+}:
+flake-utils.lib.eachDefaultSystem (
+  system:
+  let
+    pkgs = nixpkgs.legacyPackages.${system};
+  in
+  {
+    checks.modmail-module = pkgs.nixosTest {
+      name = "modmail-module-test";
+
+      nodes.machine =
+        { pkgs, ... }:
+        {
+          imports = [ self.nixosModules.modmail-with-overlay ];
+
+          # TODO: emulate Discord API?
+
+          services.ferretdb.enable = true;
+
+          services.modmail = {
+            enable = true;
+            settings = {
+              LOG_URL = "https://foo.example.com/";
+              GUILD_ID = 1234567890;
+              OWNERS = "98765,43210";
+            };
+
+            environmentFile = toString (
+              pkgs.writeText "modmail.env" ''
+                CONNECTION_URI="mongodb://127.0.0.1/ferretdb"
+                TOKEN=foo
+              ''
+            );
+          };
+        };
+
+      testScript = ''
+        start_all()
+        machine.wait_for_unit("modmail.service")
+        machine.succeed("systemctl status modmail.service")
+      '';
+    };
+  }
+)

nix/checks/default.nix

@@ -1,6 +1,6 @@
 { self, ... }:
 {
-  flake.nixosModules = {
+  nixosModules = {
     modmail = ./modmail.nix;
     modmail-with-overlay = import ./modmail-with-overlay.nix self;
   };

nix/checks/modmail-module.nix

@@ -0,0 +1,21 @@
+{
+  flake-utils,
+  nixpkgs,
+  self,
+  ...
+}:
+flake-utils.lib.eachDefaultSystem (
+  system:
+  let
+    pkgs = nixpkgs.legacyPackages.${system};
+
+    # NOTE: this is not the correct way to apply an overlay!
+    packages = self.overlays.default pkgs pkgs;
+  in
+  {
+    packages = {
+      inherit (packages) modmail;
+      default = packages.modmail;
+    };
+  }
+)

nix/formatter.nix

@@ -0,0 +1,6 @@
+{ self, ... }:
+{
+  overlays.default = final: prev: {
+    modmail = final.python311Packages.callPackage ./modmail { inherit self; };
+  };
+}

nix/packages/default.nix

@@ -0,0 +1,12 @@
+# SPDX-FileCopyrightText: 2024 Sefa Eyeoglu <[email protected]>
+#
+# SPDX-License-Identifier: MIT
+{ ... }:
+{
+  projectRootFile = "flake.nix";
+
+  programs.actionlint.enable = true;
+  programs.mdformat.enable = true;
+  programs.nixfmt.enable = true;
+  programs.ruff.enable = true;
+}