Merge pull request 'add pre-commit-check' (#1369) from fricklerhandwerk/clan-core:add-pre-commit into main

Reviewed-on: #1369

devShell.nix

@@ -1,3 +1,4 @@
+{ inputs, ... }:
 {
   perSystem =
     {
@@ -8,6 +9,7 @@
     }:
     let
       writers = pkgs.callPackage ./pkgs/builders/script-writers.nix { };
+      inherit (pkgs.callPackage inputs.git-hooks { }) lib;
 
       ansiEscapes = {
         reset = ''\033[0m'';
@@ -20,6 +22,11 @@
       select-shell = writers.writePython3Bin "select-shell" {
         flakeIgnore = [ "E501" ];
       } ./pkgs/scripts/select-shell.py;
+
+      # run treefmt before each commit
+      install-pre-commit-hook =
+        with lib.git-hooks;
+        pre-commit (wrap.abort-on-change config.treefmt.build.wrapper);
     in
     {
       devShells.default = pkgs.mkShell {
@@ -34,8 +41,7 @@
           config.treefmt.build.wrapper
         ];
         shellHook = ''
-          # no longer used
-          rm -f "$(git rev-parse --show-toplevel)/.git/hooks/pre-commit"
+          ${install-pre-commit-hook}
 
           echo -e "${ansiEscapes.green}switch to another dev-shell using: select-shell${ansiEscapes.reset}"
         '';

flake.lock

@@ -40,6 +40,22 @@
         "type": "github"
       }
     },
+    "git-hooks": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1715912400,
+        "narHash": "sha256-7GYXKJP7bglYgofN3/PW5EBGaGOIKbBKSgFb6m4ttC4=",
+        "owner": "fricklerhandwerk",
+        "repo": "git-hooks",
+        "rev": "5a23214ca74a7656048fe1402c4e98f5cd2b3729",
+        "type": "github"
+      },
+      "original": {
+        "owner": "fricklerhandwerk",
+        "repo": "git-hooks",
+        "type": "github"
+      }
+    },
     "nixlib": {
       "locked": {
         "lastModified": 1712450863,
@@ -133,6 +149,7 @@
       "inputs": {
         "disko": "disko",
         "flake-parts": "flake-parts",
+        "git-hooks": "git-hooks",
         "nixos-generators": "nixos-generators",
         "nixos-images": "nixos-images",
         "nixpkgs": "nixpkgs",

flake.nix

@@ -21,6 +21,8 @@
     flake-parts.inputs.nixpkgs-lib.follows = "nixpkgs";
     treefmt-nix.url = "github:numtide/treefmt-nix";
     treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
+    git-hooks.url = "github:fricklerhandwerk/git-hooks";
+    git-hooks.flake = false;
   };
 
   outputs =