Upgrade flake with pre-commit hooks and devShell

.envrc

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

.gitignore

@@ -1,2 +1,8 @@
-# "nix build" default output symlink
+# direnv cache
-/result
+/.direnv
+
+# "nix build" default output link
+result
+
+# nix pre-commit autogenerated by devShell
+/.pre-commit-config.yaml

flake.lock

@@ -53,9 +53,25 @@
         "type": "github"
       }
     },
+    "flake-compat_2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1767039857,
+        "narHash": "sha256-vNpUSpF5Nuw8xvDLj2KCwwksIbjua2LZCqhV1LNRDns=",
+        "owner": "NixOS",
+        "repo": "flake-compat",
+        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "inputs": {
-        "systems": "systems_2"
+        "systems": "systems_3"
       },
       "locked": {
         "lastModified": 1681202837,
@@ -116,6 +132,28 @@
         "type": "github"
       }
     },
+    "git-hooks_2": {
+      "inputs": {
+        "flake-compat": "flake-compat_2",
+        "gitignore": "gitignore_2",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1774104215,
+        "narHash": "sha256-EAtviqz0sEAxdHS4crqu7JGR5oI3BwaqG0mw7CmXkO8=",
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "f799ae951fde0627157f40aec28dec27b22076d0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
     "gitignore": {
       "inputs": {
         "nixpkgs": [
@@ -138,6 +176,27 @@
         "type": "github"
       }
     },
+    "gitignore_2": {
+      "inputs": {
+        "nixpkgs": [
+          "git-hooks",
+          "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"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -212,10 +271,12 @@
       "inputs": {
         "darwin": "darwin",
         "fw_nix": "fw_nix",
+        "git-hooks": "git-hooks_2",
         "home-manager": "home-manager",
         "nix-homebrew": "nix-homebrew",
         "nixpkgs": "nixpkgs",
         "nixpkgs-screen": "nixpkgs-screen",
+        "systems": "systems_2",
         "vscode-server": "vscode-server"
       }
     },
@@ -249,6 +310,21 @@
         "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"
+      }
+    },
     "vscode-server": {
       "inputs": {
         "flake-utils": "flake-utils",

flake.nix

@@ -8,6 +8,7 @@
     # - background colors in programs (eg less) not showing
     # - caption and hardstatus color lacks intensity
     nixpkgs-screen.url = "github:NixOS/nixpkgs/e518d4ad2bcad74f98fec028cf21ce5b1e5020dd";
+    systems.url = "github:nix-systems/default";
     home-manager = {
       url = "github:nix-community/home-manager";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -25,12 +26,17 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     nix-homebrew.url = "github:zhaofengli/nix-homebrew";
+    git-hooks = {
+      url = "github:cachix/git-hooks.nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs =
     {
       self,
       nixpkgs,
+      systems,
       home-manager,
       vscode-server,
       darwin,
@@ -42,8 +48,18 @@
         "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBJhQjxeLZUWdEPMqPNS8wTTrg4lbzBAOLKvdsJd0fSBcW5ILuEbKQjgEIwmYuR/iGhnqIp7rQK48xL/4CauQUyg= office-dock-usb-a"
         "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBJg7zQ4H0LQeQcILZBwCzQ+MYKtCgKm7HPe9oFeoyprKZXAvpm+HDHtaYdU39JF9f+nvRztzXuMhgETAQMAQCkc= fingerprint@macbook"
       ];
+      eachSystem = nixpkgs.lib.genAttrs (import systems);
     in
     {
+      checks = eachSystem (system: {
+        pre-commit-check = inputs.git-hooks.lib.${system}.run (
+          {
+            src = ./.;
+          }
+          // inputs.fw_nix.lib.pre-commit
+        );
+      });
+
       homeModules.main = {
         imports = [ ./modules/home.nix ];
       };
@@ -73,13 +89,16 @@
           inputs.fw_nix.nixosModules.nix-settings
           inputs.fw_nix.nixosModules.futureware
           inputs.nix-homebrew.darwinModules.nix-homebrew
-          ({ lib, ... }: {
+          (
+            { lib, ... }:
+            {
               # TODO: find solution to these ugly workarounds
               options.programs.htop = lib.mkOption {
                 type = lib.types.deferredModule;
                 default = { };
               };
-          })
+            }
+          )
           ./hosts/mars/darwin.nix
         ];
       };
@@ -105,5 +124,19 @@
             ./hosts/deimos/nixos.nix
           ];
         };
+
+      devShells = eachSystem (
+        system:
+        let
+          pkgs = import nixpkgs { inherit system; };
+          inherit (self.checks.${system}.pre-commit-check) shellHook enabledPackages;
+        in
+        {
+          default = pkgs.mkShell {
+            packages = enabledPackages;
+            inherit shellHook;
+          };
+        }
+      );
     };
 }