Add e2e test workflow

Add e2e workflow file that runs
on every pr/push to master and
executes standalone e2e tests against glsp-client

Author: tortmayr

.github/workflows/ci.yml

@@ -7,8 +7,16 @@ on:
   workflow_dispatch:
   push:
     branches: [main]
+    paths-ignore:
+      - '**/*.md'
+      - 'LICENSE'
+      - '.vscode/**'
   pull_request:
     branches: [main]
+    paths-ignore:
+      - '**/*.md'
+      - 'LICENSE'
+      - '.vscode/**'
 
 jobs:
   build:

.github/workflows/e2e.yml

@@ -0,0 +1,66 @@
+name: 'E2E'
+
+concurrency:
+  group: playwright-${{ github.ref }}
+  cancel-in-progress: true
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+    paths-ignore:
+      - '**/*.md'
+      - 'LICENSE'
+      - '.vscode/**'
+  pull_request:
+    branches: [main]
+    paths-ignore:
+      - '**/*.md'
+      - 'LICENSE'
+      - '.vscode/**'
+
+jobs:
+  playwright:
+    name: E2E Tests
+    timeout-minutes: 120
+    runs-on: ubuntu-latest
+    env:
+      GLSP_REPO_DIR: '${{ github.workspace }}'
+      GLSP_SERVER_PORT: '8081'
+      GLSP_WEBSOCKET_PATH: 'workflow'
+      GLSP_SERVER_DEBUG: 'true'
+      GLSP_SERVER_TYPE: 'node'
+
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          path: 'glsp-server-node'
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          repository: 'eclipse-glsp/glsp-playwright'
+          path: 'glsp-playwright'
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          repository: 'eclipse-glsp/glsp-client'
+          path: 'glsp-client'
+      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
+        with:
+          node-version: '22'
+      - name: Install dependencies
+        run: |
+          cd glsp-client
+          yarn
+          cd ../glsp-server-node
+          yarn
+          cd ../glsp-playwright
+          yarn
+      - name: Run Playwright tests
+        id: run_playwright_tests
+        run: |
+          cd glsp-playwright
+          yarn test:standalone
+      - name: Upload Playwright report
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        if: always()
+        with:
+          name: playwright-report
+          path: glsp-playwright/examples/workflow-test/playwright-report/