Add pre-commit fmt hook

.gitignore

@@ -3,3 +3,4 @@
 /.direnv
 /book
 /.sops.yaml
+/.pre-commit-config.yaml

flake.lock

@@ -191,6 +191,22 @@
         "type": "github"
       }
     },
+    "flake-compat_2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": [
@@ -266,7 +282,50 @@
         "type": "github"
       }
     },
+    "git-hooks-nix": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1740915799,
+        "narHash": "sha256-JvQvtaphZNmeeV+IpHgNdiNePsIpHD5U/7QN5AeY44A=",
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "42b1ba089d2034d910566bf6b40830af6b8ec732",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
     "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "git-hooks-nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "gitignore_2": {
       "inputs": {
         "nixpkgs": [
           "lanzaboote",
@@ -343,7 +402,7 @@
     "lanzaboote": {
       "inputs": {
         "crane": "crane",
-        "flake-compat": "flake-compat",
+        "flake-compat": "flake-compat_2",
         "flake-parts": "flake-parts_3",
         "nixpkgs": [
           "nixpkgs"
@@ -462,7 +521,7 @@
           "lanzaboote",
           "flake-compat"
         ],
-        "gitignore": "gitignore",
+        "gitignore": "gitignore_2",
         "nixpkgs": [
           "lanzaboote",
           "nixpkgs"
@@ -505,6 +564,7 @@
         "ez-configs": "ez-configs",
         "fcc-unlock": "fcc-unlock",
         "flake-parts": "flake-parts_2",
+        "git-hooks-nix": "git-hooks-nix",
         "home-manager": "home-manager",
         "lanzaboote": "lanzaboote",
         "nixos-facter-modules": "nixos-facter-modules",

flake.nix

@@ -17,6 +17,10 @@
         flake-parts.follows = "flake-parts";
       };
     };
+    git-hooks-nix = {
+      url = "github:cachix/git-hooks.nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
 
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     home-manager = {
@@ -60,12 +64,14 @@
       imports = map (name: inputs.${name}.flakeModule) [
         "treefmt-nix"
         "ez-configs"
+        "git-hooks-nix"
       ];
       systems = [
         "x86_64-linux"
       ];
       perSystem =
         {
+          config,
           pkgs,
           lib,
           self',
@@ -82,6 +88,13 @@
             };
             settings.global.excludes = [ "*.jpg" ];
           };
+          pre-commit = {
+            check.enable = false;
+            settings.hooks.treefmt = {
+              enable = true;
+              always_run = true;
+            };
+          };
 
           checks =
             with lib;
@@ -107,6 +120,9 @@
                 nixd
                 ;
             };
+            shellHook = ''
+              ${config.pre-commit.installationScript}
+            '';
           };
 
         };