ci: add workflow to check for Typescript issues

.github/workflows/lint-typescript.yml

@@ -0,0 +1,57 @@
+# This workflow is provided via the organization template repository
+#
+# https://github.com/nextcloud-libraries/.github
+# https://docs.github.com/en/actions/learn-github-actions/sharing-workflows-with-your-organization
+#
+# SPDX-FileCopyrightText: 2023-2024 Nextcloud GmbH and Nextcloud contributors
+# SPDX-License-Identifier: MIT
+
+name: Type checking
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - master
+      - stable*
+
+permissions:
+  contents: read
+
+concurrency:
+  group: lint-typescript-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    name: Lint Typescript
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with:
+          persist-credentials: false
+
+      - name: Read package.json
+        uses: nextcloud-libraries/parse-package-engines-action@122ae05d4257008180a514e1ddeb0c1b9d094bdd # v0.1.0
+        id: versions
+
+      - name: Set up node
+        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
+        with:
+          node-version: ${{ steps.versions.outputs.node-version }}
+
+      - name: Set up npm
+        run: npm i -g 'npm@${{ steps.versions.outputs.package-manager-version }}'
+
+      - name: Install dependencies
+        env:
+          CYPRESS_INSTALL_BINARY: 0
+        run: npm ci
+
+      - name: Check types
+        run: |
+          npm run --if-present check-types
+          npm run --if-present ts:check

package.json

@@ -40,6 +40,7 @@
     "test": "vitest run",
     "test:coverage": "vitest run --coverage",
     "test:watch": "vitest watch",
+    "ts:check": "tsc --noEmit",
     "watch": "vite --mode development build --watch"
   },
   "overrides": {