ci: commitlint entirely through nix

.commitlintrc.js

@@ -1,8 +1,29 @@
 module.exports = {
-  extends: ["@commitlint/config-conventional"],
   rules: {
-    "scope-case": [2, "always", "lower-case"],
-    "subject-case": [2, "always", "lower-case"],
-    "scope-empty": [0, "never"],
-  },
+    'scope-case': [2, 'always', 'lower-case'],
+    'subject-case': [2, 'always', 'lower-case'],
+    'scope-empty': [0, 'never'],
+    'type-enum': [
+      2,
+      'always',
+      [
+        'build',
+        'chore',
+        'ci',
+        'docs',
+        'feat',
+        'fix',
+        'perf',
+        'refactor',
+        'revert',
+        'style',
+        'test'
+      ]
+    ],
+    'type-case': [2, 'always', 'lower-case'],
+    'type-empty': [2, 'never'],
+    'subject-empty': [2, 'never'],
+    'subject-full-stop': [2, 'never', '.'],
+    'header-max-length': [2, 'always', 72]
+  }
 };

.envrc

@@ -1,4 +1 @@
-watch_file flake.nix
-watch_file flake.lock
-
 use flake

.github/workflows/commit-lint.yml

@@ -9,16 +9,12 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: actions/setup-node@v4
+      - uses: cachix/install-nix-action@v24
         with:
-          node-version: "20"
-
-      - name: Install commitlint
-        run: |
-          npm install --global @commitlint/cli @commitlint/config-conventional
+          nix_path: nixpkgs=channel:nixos-unstable
 
       - name: Copy commitlint config
         run: cp .commitlintrc.js $HOME/.commitlintrc.js
 
       - name: Validate PR commits
-        run: npx commitlint --config $HOME/.commitlintrc.js --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose
+        run: nix-shell -p commitlint --run "commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose"

.gitignore

@@ -5,6 +5,5 @@ result
 *.log
 *.tmp
 output-*
-.husky
 .direnv
-node_modules
+.git-hooks

lib/dev-shell.nix

@@ -4,24 +4,26 @@ pkgs.mkShell {
   buildInputs = with pkgs; [
     nodejs
     commitlint
-    pnpm
     direnv
     nix-direnv
   ];
 
   shellHook = ''
     export USE_DIRENV=1
 
-    # Install dependencies and setup husky if needed
-    if [ ! -d "node_modules" ]; then
-      pnpm install
-      pnpm prepare
-    fi
+    # Set up git hooks directory
+    git config core.hooksPath .git-hooks
 
-    # Set up commit-msg hook if it doesn't exist
-    mkdir -p .husky
-    echo '#!/usr/bin/env sh
-    pnpm dlx commitlint --edit "$1"' > .husky/commit-msg
-    chmod +x .husky/commit-msg
+    # Ensure .git-hooks directory exists
+    mkdir -p .git-hooks
+
+    # Create commit-msg hook
+    cat > .git-hooks/commit-msg <<'EOF'
+    #!/usr/bin/env sh
+    ${pkgs.commitlint}/bin/commitlint --edit "$1"
+    EOF
+
+    # Make hook executable
+    chmod +x .git-hooks/commit-msg
   '';
 }

package.json

@@ -1,12 +1,4 @@
 {
   "name": "hydenix",
-  "private": true,
-  "scripts": {
-    "prepare": "pnpm dlx husky"
-  },
-  "devDependencies": {
-    "@commitlint/cli": "^19.5.0",
-    "@commitlint/config-conventional": "^19.5.0",
-    "husky": "^9.0.0"
-  }
-}
+  "private": true
+}