feat: add type checking workflow

workflow-templates/lint-typescript.properties.json

@@ -0,0 +1,13 @@
+{
+	"name": "Typechecking",
+	"description": "Checking Typescript types. Requires 'ts:check' script in 'package.json'.",
+	"iconName": "octicon codescan-checkmark",
+    "categories": [
+        "TypeScript",
+        "code-quality",
+        "npm"
+    ],
+	"filePatterns": [
+		"^tsconfig.json$"
+	]
+}

workflow-templates/lint-typescript.yml

@@ -0,0 +1,100 @@
+# This workflow is provided via the organization template repository
+#
+# https://github.com/nextcloud/.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:
+  changes:
+    runs-on: ubuntu-latest-low
+    permissions:
+      contents: read
+      pull-requests: read
+
+    outputs:
+      src: ${{ steps.changes.outputs.src}}
+
+    steps:
+      - uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
+        id: changes
+        continue-on-error: true
+        with:
+          filters: |
+            src:
+              - '.github/workflows/lint-typescript.yml'
+              - 'package.json'
+              - 'package-lock.json'
+              - 'tsconfig.json'
+              - '**.ts'
+              - '**.vue'
+
+  test:
+    runs-on: ubuntu-latest
+
+    needs: changes
+    if: needs.changes.outputs.src != 'false'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          persist-credentials: false
+
+      - name: Read package.json node and npm engines version
+        uses: skjnldsv/read-package-engines-version-actions@06d6baf7d8f41934ab630e97d9e6c0bc9c9ac5e4 # v3
+        id: versions
+        with:
+          fallbackNode: '^20'
+          fallbackNpm: '^10'
+
+      - name: Set up node ${{ steps.versions.outputs.nodeVersion }}
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          node-version: ${{ steps.versions.outputs.nodeVersion }}
+
+      - name: Set up npm ${{ steps.versions.outputs.npmVersion }}
+        run: npm i -g 'npm@${{ steps.versions.outputs.npmVersion }}'
+
+      - 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
+
+  summary:
+    permissions:
+      contents: none
+    runs-on: ubuntu-latest-low
+    needs: [changes, test]
+
+    if: always()
+
+    name: typescript-summary
+
+    steps:
+      - name: Summary status
+        run: if ${{ needs.changes.outputs.src != 'false' && needs.test.result != 'success' }}; then exit 1; fi