feat: setup pre-commit-hooks

.envrc

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

.gitignore

@@ -1,2 +1,2 @@
-/hardware-configuration.nix
+.env
-/configuration.nix
+.pre-commit-config.yaml

flake.lock

@@ -1,15 +1,112 @@
 {
   "nodes": {
+    "cabal-fmt-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1598802028,
+        "narHash": "sha256-5yUORdBD9mtL7vPnqs+MGnHvQ7y7OGx5VeMHx0pIe2U=",
+        "owner": "phadej",
+        "repo": "cabal-fmt",
+        "rev": "0c716667848e0a6f2b5f999b60b067e36b0495ce",
+        "type": "github"
+      },
+      "original": {
+        "owner": "phadej",
+        "ref": "master",
+        "repo": "cabal-fmt",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1600853454,
+        "narHash": "sha256-EgsgbcJNZ9AQLVhjhfiegGjLbO+StBY9hfKsCwc8Hw8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "94cf59784c73ecec461eaa291918eff0bfb538ac",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1600209923,
+        "narHash": "sha256-zoOWauTliFEjI++esk6Jzk7QO5EKpddWXQm9yQK24iM=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3cd06d3c1df6879c9e41cb2c33113df10566c760",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "locked": {
+        "lastModified": 1600209923,
+        "narHash": "sha256-zoOWauTliFEjI++esk6Jzk7QO5EKpddWXQm9yQK24iM=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3cd06d3c1df6879c9e41cb2c33113df10566c760",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "gitignore-nix-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1594969032,
+        "narHash": "sha256-nbZfz02QoVe1yYK7EtCV7wMi4VdHzZEoPg20ZSDo9to=",
+        "owner": "hercules-ci",
+        "repo": "gitignore",
+        "rev": "c4662e662462e7bf3c2a968483478a665d00e717",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "ref": "master",
+        "repo": "gitignore",
+        "type": "github"
+      }
+    },
+    "hindent-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1599403541,
+        "narHash": "sha256-Js9uf2JSID3Ny5DVJbJ/cAbOPthcb1fKXCfyk+uoLT0=",
+        "owner": "chrisdone",
+        "repo": "hindent",
+        "rev": "a75d4033969ecf7d4d0a5eb985d3d1abb3b9301f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "chrisdone",
+        "ref": "master",
+        "repo": "hindent",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1600810013,
+        "lastModified": 1600939014,
-        "narHash": "sha256-Zcvg0/ot+EfV1fOdUF0G/GY2zBq76ksv92cpa2E2xvk=",
+        "narHash": "sha256-KAE8spJnWmnFy1H1QVyRa2fA/09MxbZgjzvilqBhCPY=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "a6a3abb295777b1d3ac1ca7f2d47bd0daf7f9638",
+        "rev": "690d93c22a8812c303a52786022f3f0441dfd06a",
         "type": "github"
       },
       "original": {
@@ -48,13 +145,29 @@
         "type": "github"
       }
     },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1600791342,
+        "narHash": "sha256-rHcPneff0ktF2Jhmh8kd+NqP1SaHa6uU2YJx1kyG1qQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs-channels",
+        "rev": "6ec10fc77e56b9f848930f129833cfbbac736e4f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-20.03",
+        "repo": "nixpkgs-channels",
+        "type": "github"
+      }
+    },
     "nur": {
       "locked": {
-        "lastModified": 1600852729,
+        "lastModified": 1600942119,
-        "narHash": "sha256-vEL7Z+PH0SNa6lxeh5O4L4qXTxbLvgRmOjB1hsuszQM=",
+        "narHash": "sha256-En5A8eFmuGG/GYpFE8rsXUxCNbdjEH0NSmlze4NXbBE=",
         "owner": "nix-community",
         "repo": "NUR",
-        "rev": "7f9f9cc367812895a64648d9942fddf6e7faacf8",
+        "rev": "db2d66991e8068db7a7e1a617901f8e732147fe6",
         "type": "github"
       },
       "original": {
@@ -64,11 +177,37 @@
         "type": "github"
       }
     },
+    "pre-commit-hooks": {
+      "inputs": {
+        "cabal-fmt-src": "cabal-fmt-src",
+        "flake-compat": "flake-compat",
+        "flake-utils": "flake-utils_2",
+        "gitignore-nix-src": "gitignore-nix-src",
+        "hindent-src": "hindent-src",
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1600939022,
+        "narHash": "sha256-TDyYQGP2x+LDU2hHUtXI9hrwN2iQByLBfq39rXBq1cA=",
+        "owner": "Myhlamaeus",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "8d48a4cd434a6a6cc8f2603b50d2c0b2981a7c55",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Myhlamaeus",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "8d48a4cd434a6a6cc8f2603b50d2c0b2981a7c55",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
+        "flake-utils": "flake-utils",
         "home-manager": "home-manager",
         "nixpkgs": "nixpkgs_2",
-        "nur": "nur"
+        "nur": "nur",
+        "pre-commit-hooks": "pre-commit-hooks"
       }
     }
   },

flake.nix

@@ -1,11 +1,17 @@
 {
   inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
 
+  inputs.flake-utils.url = "github:numtide/flake-utils";
+
   inputs.home-manager.url = "github:nix-community/home-manager/master";
 
   inputs.nur.url = "github:nix-community/NUR/master";
 
-  outputs = { self, nixpkgs, home-manager, nur }:
+  inputs.pre-commit-hooks.url =
+    # "github:Myhlamaeus/pre-commit-hooks.nix/feat/flake";
+    "github:Myhlamaeus/pre-commit-hooks.nix/8d48a4cd434a6a6cc8f2603b50d2c0b2981a7c55";
+
+  outputs = { self, nixpkgs, flake-utils, home-manager, nur, pre-commit-hooks }:
     let
       systemModule = { hostName, hardwareConfig, config }:
         ({ pkgs, ... }: {
@@ -50,5 +56,14 @@
 
       homeManagerModules.git = import ./home/modules/git.nix;
 
-    };
+    } // flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+        pre-commit-check = pre-commit-hooks.defaultPackage.${system} {
+          src = ./.;
+          hooks = { nixfmt.enable = true; };
+        };
+      in {
+        devShell = pkgs.mkShell { inherit (pre-commit-check) shellHook; };
+      });
 }