ci: add commitlint to enforce the Conventional Commits specification

.github/dependabot.yaml

@@ -1,12 +1,12 @@
 version: 2
 updates:
   - package-ecosystem: "npm"
-    directory: "/website"
+    directory: "/"
     versioning-strategy: "increase-if-necessary"
     schedule:
       interval: "weekly"
     groups:
-      dependencies:
+      root-dependencies:
         patterns:
           - "*"
 
@@ -18,3 +18,13 @@ updates:
       github-action-dependencies:
         patterns:
           - "*"
+
+  - package-ecosystem: "npm"
+    directory: "/website"
+    versioning-strategy: "increase-if-necessary"
+    schedule:
+      interval: "weekly"
+    groups:
+      dependencies:
+        patterns:
+          - "*"

.github/workflows/conventional-commits.yaml

@@ -0,0 +1,37 @@
+name: Conventional Commits
+
+on:
+  pull_request:
+    types:
+      - opened
+      - edited
+      - synchronize
+  workflow_call:
+    inputs:
+      title:
+        description: 'PR title'
+        type: string
+        required: true
+
+permissions:
+  contents: read
+
+concurrency:
+  group: check-pr-title-${{ github.event.pull_request.id || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  check-pr-title:
+    name: Check PR title
+    runs-on: ubuntu-latest
+    env:
+      TITLE: ${{ inputs.title || github.event.pull_request.title }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "lts/*"
+          cache: "npm"
+      - run: npm ci
+      - name: Validate PR title
+        run: echo "$TITLE" | npx --no commitlint

.husky/commit

@@ -0,0 +1 @@
+npx --no -- commitlint --edit $1

app/api/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

app/internal/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

app/selfserve/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

commitlint.config.ts

@@ -0,0 +1,11 @@
+import type {UserConfig} from '@commitlint/types';
+import * as fs from "fs";
+
+const Configuration: UserConfig = {
+  extends: ['@commitlint/config-conventional'],
+  rules: {
+    'scope-enum': [2, 'always', fs.readdirSync('app').filter((file) => fs.statSync(`app/${file}`).isDirectory())],
+  }
+};
+
+module.exports = Configuration;