feat: nix fmt

.gitignore

@@ -1,3 +1,4 @@
 result
 result/
 .DS_Store
+.pre-commit-config.yaml

flake.lock

@@ -274,6 +274,22 @@
         "type": "github"
       }
     },
+    "flake-compat_2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": [
@@ -334,6 +350,24 @@
         "type": "github"
       }
     },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_3"
+      },
+      "locked": {
+        "lastModified": 1685518550,
+        "narHash": "sha256-o2d0KcvaXzTrPRIo0kOLV0/QXHhDQ5DTi+OxcjO8xqY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "a1720a10a6cfe8234c0e93907ffe81be440f4cef",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "gitignore": {
       "inputs": {
         "nixpkgs": [
@@ -356,6 +390,27 @@
         "type": "github"
       }
     },
+    "gitignore_2": {
+      "inputs": {
+        "nixpkgs": [
+          "pre-commit-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1660459072,
+        "narHash": "sha256-8DFJjXG8zqoONA1vXtgeKXy68KdJL5UaXR8NtVMUbx8=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "a20de23b925fd8264fd7fad6454652e142fd7f73",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -664,6 +719,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-stable_2": {
+      "locked": {
+        "lastModified": 1685801374,
+        "narHash": "sha256-otaSUoFEMM+LjBI1XL/xGB5ao6IwnZOXc47qhIgJe8U=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "c37ca420157f4abc31e26f436c1145f8951ff373",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs-unstable": {
       "locked": {
         "lastModified": 1702312524,
@@ -760,6 +831,22 @@
         "type": "github"
       }
     },
+    "nixpkgs_7": {
+      "locked": {
+        "lastModified": 1689261696,
+        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nur-ryan4yin": {
       "inputs": {
         "nixpkgs": "nixpkgs_6"
@@ -795,6 +882,28 @@
         "type": "github"
       }
     },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat_2",
+        "flake-utils": "flake-utils_2",
+        "gitignore": "gitignore_2",
+        "nixpkgs": "nixpkgs_7",
+        "nixpkgs-stable": "nixpkgs-stable_2"
+      },
+      "locked": {
+        "lastModified": 1702456155,
+        "narHash": "sha256-I2XhXGAecdGlqi6hPWYT83AQtMgL+aa3ulA85RAEgOk=",
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "007a45d064c1c32d04e1b8a0de5ef00984c419bc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
     "pre-commit-hooks-nix": {
       "inputs": {
         "flake-compat": [
@@ -854,6 +963,7 @@
         "nixpkgs-unstable": "nixpkgs-unstable",
         "nur-ryan4yin": "nur-ryan4yin",
         "nushell-scripts": "nushell-scripts",
+        "pre-commit-hooks": "pre-commit-hooks",
         "wallpapers": "wallpapers"
       }
     },
@@ -912,6 +1022,21 @@
         "type": "github"
       }
     },
+    "systems_3": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "thead-kernel": {
       "flake": false,
       "locked": {

flake.nix

@@ -13,17 +13,19 @@
   # parameters in `outputs` are defined in `inputs` and can be referenced by their names.
   # However, `self` is an exception, this special parameter points to the `outputs` itself (self-reference)
   # The `@` syntax here is used to alias the attribute set of the inputs's parameter, making it convenient to use inside the function.
-  outputs = inputs @ {
+  outputs =
-    self,
+    inputs @ { self
-    nixpkgs,
+    , nixpkgs
-    nixpkgs-unstable,
+    , nixpkgs-unstable
-    nix-darwin,
+    , pre-commit-hooks
-    home-manager,
+    , nix-darwin
-    nixos-generators,
+    , home-manager
-    nixos-licheepi4a,
+    , nixos-generators
-    nixos-rk3588,
+    , nixos-licheepi4a
-    ...
+    , nixos-rk3588
-  }: let
+    , ...
+    }:
+    let
       username = "ryan";
       userfullname = "Ryan Yin";
       useremail = "xiaoyin_c@qq.com";
@@ -119,15 +121,18 @@
           };
         }
         // inputs;
-  in {
+    in
-    nixosConfigurations = let
+    {
+      nixosConfigurations =
+        let
           base_args = {
             inherit home-manager nixos-generators;
             nixpkgs = nixpkgs; # or nixpkgs-unstable
             system = x64_system;
             specialArgs = x64_specialArgs;
           };
-    in {
+        in
+        {
           # ai with i3 window manager
           ai_i3 = nixosSystem (idol_ai_modules_i3 // base_args);
           # ai with hyprland compositor
@@ -140,7 +145,8 @@
         };
 
       # colmena - remote deployment via SSH
-    colmena = let
+      colmena =
+        let
           # x86_64 related
           x64_base_args = {
             inherit home-manager;
@@ -178,7 +184,8 @@
             specialArgs = rk3588_specialArgs;
             targetUser = "root";
           };
-    in {
+        in
+        {
           meta = {
             nixpkgs = import nixpkgs { system = x64_system; };
             specialArgs = x64_specialArgs;
@@ -220,7 +227,8 @@
         nixpkgs.lib.genAttrs [
           "ai_i3"
           "ai_hyprland"
-      ] (
+        ]
+          (
             # generate iso image for hosts with desktop environment
             host:
             self.nixosConfigurations.${host}.config.formats.iso
@@ -229,14 +237,16 @@
           "aquamarine"
           "ruby"
           "kana"
-      ] (
+        ]
+          (
             # generate proxmox image for virtual machines without desktop environment
             host:
             self.nixosConfigurations.${host}.config.formats.proxmox
           );
 
       # macOS's configuration, for work.
-    darwinConfigurations = let
+      darwinConfigurations =
+        let
           system = x64_darwin;
           specialArgs =
             {
@@ -252,7 +262,8 @@
           base_args = {
             inherit nix-darwin home-manager system specialArgs nixpkgs;
           };
-    in {
+        in
+        {
           harmonica = macosSystem (base_args
             // {
             darwin-modules = [
@@ -268,6 +279,25 @@
         system:
         nixpkgs.legacyPackages.${system}.alejandra
       );
+
+      # pre-commit hooks for nix code
+      checks = nixpkgs.lib.genAttrs allSystems (
+        system: {
+          pre-commit-check = pre-commit-hooks.lib.${system}.run {
+            src = ./.;
+            hooks = {
+              alejandra.enable = true;
+            };
+          };
+        }
+      );
+      devShells = nixpkgs.lib.genAttrs allSystems (
+        system: {
+          default = nixpkgs.legacyPackages.${system}.mkShell {
+            inherit (self.checks.${system}.pre-commit-check) shellHook;
+          };
+        }
+      );
     };
 
   # This is the standard format for flake.nix. `inputs` are the dependencies of the flake,
@@ -281,6 +311,9 @@
     # nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
 
+    # add git hooks to format nix code before commit
+    pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix";
+
     # for macos
     nixpkgs-darwin.url = "github:nixos/nixpkgs/nixpkgs-23.11-darwin";
     nix-darwin = {

modules/nixos/server.nix

@@ -3,7 +3,6 @@
     ./base/i18n.nix
     ./base/misc.nix
     ./base/networking.nix
-    ./base/peripherals.nix
     ./base/remote-building.nix
     ./base/user-group.nix
     ./base/visualisation.nix