1 files changed, 54 insertions, 10 deletions

diff --git a/flake.nix b/flake.nix
index 426f9bd..9664dd0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -24,25 +24,38 @@
       ref = "master";
       flake = false;
     };
+
+    pre-commit-hooks = {
+      type = "github";
+      owner = "cachix";
+      repo = "pre-commit-hooks.nix";
+      ref = "master";
+      inputs = {
+        nixpkgs.follows = "nixpkgs";
+        flake-utils.follows = "flake-utils";
+      };
+    };
   };
 
-  outputs = { self, nixpkgs, flake-utils, ... }:
-    flake-utils.lib.eachDefaultSystem (system:
+  outputs = inputs:
+    with inputs;
+    let name = "xmonad-ng";
+    in flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
 
         project = returnShellEnv:
           pkgs.haskellPackages.developPackage {
-            inherit returnShellEnv;
-            name = "xmonad-ng";
+            inherit name returnShellEnv;
             root = ./.;
             overrides = self: _:
               with pkgs.haskell.lib;
-              let version = "0.17.0";
+              let
+                mkPackage = packageName:
+                  dontCheck (self.callHackage packageName "0.17.0" { });
               in {
-                xmonad = dontCheck (self.callHackage "xmonad" version { });
-                xmonad-contrib =
-                  dontCheck (self.callHackage "xmonad-contrib" version { });
+                xmonad = mkPackage "xmonad";
+                xmonad-contrib = mkPackage "xmonad-contrib";
               };
             modifier = drv:
               pkgs.haskell.lib.addBuildTools drv (with pkgs.haskellPackages; [
@@ -57,8 +70,39 @@
       in {
         defaultPackage = project false;
 
-        devShell = project true;
+        checks.preCommit = pre-commit-hooks.lib.${system}.run {
+          src = ./.;
+          hooks = {
+            nix-linter.enable = true;
+            nixfmt.enable = true;
+            hpack.enable = true;
+            hlint.enable = true;
+            yamllint.enable = true;
+            brittany.enable = true;
+            shellcheck.enable = true;
+            shfmt = {
+              enable = true;
+              name = "shfmt";
+              entry = "${pkgs.shfmt}/bin/shfmt -s -w";
+              types = [ "shell" ];
+            };
+            prettier = {
+              enable = true;
+              types = [ ];
+              files = "\\.((yaml)|\\d)$";
+            };
+          };
+        };
+
+        shells = {
+          dev = project true;
+          commit = pkgs.mkShell {
+            inherit (self.checks.${system}.preCommit) shellHook;
+          };
+        };
+
+        devShell = self.shells.${system}.dev;
       }) // {
-        overlay = _: _: { xmonad-ng = self.defaultPackage; };
+        overlay = _: _: { ${name} = self.defaultPackage; };
       };
 }