fix: save CI time and run checks conditionally

.github/workflows/ci-build.yaml

@@ -23,9 +23,27 @@ permissions:
   contents: read
 
 jobs:
+  changes:
+    runs-on: ubuntu-latest
+    outputs:
+      backend: ${{ steps.filter.outputs.backend }}
+      frontend: ${{ steps.filter.outputs.frontend }}
+    steps:
+    - uses: actions/checkout@v3
+    - uses: dorny/paths-filter@v2
+      id: filter
+      with:
+        filters: |
+          backend:
+            - '!(ui/**)'
+            - '!(**/*.md)'
+          frontend:
+            - 'ui/**'
+
   check-go:
     name: Ensure Go modules synchronicity
     runs-on: ubuntu-22.04
+    if: ${{ needs.changes.outputs.backend == 'true' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
@@ -44,6 +62,7 @@ jobs:
   build-go:
     name: Build & cache Go code
     runs-on: ubuntu-22.04
+    if: ${{ needs.changes.outputs.backend == 'true' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
@@ -68,6 +87,7 @@ jobs:
       pull-requests: read  # for golangci/golangci-lint-action to fetch pull requests
     name: Lint Go code
     runs-on: ubuntu-22.04
+    if: ${{ needs.changes.outputs.backend == 'true' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
@@ -84,6 +104,7 @@ jobs:
   test-go:
     name: Run unit tests for Go packages
     runs-on: ubuntu-22.04
+    if: ${{ needs.changes.outputs.backend == 'true' }}
     needs:
       - build-go
     env:
@@ -151,6 +172,7 @@ jobs:
   test-go-race:
     name: Run unit tests with -race, for Go packages
     runs-on: ubuntu-22.04
+    if: ${{ needs.changes.outputs.backend == 'true' }}
     needs:
       - build-go
     env:
@@ -213,6 +235,7 @@ jobs:
   codegen:
     name: Check changes to generated code
     runs-on: ubuntu-22.04
+    if: ${{ needs.changes.outputs.backend == 'true' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
@@ -261,6 +284,7 @@ jobs:
   build-ui:
     name: Build, test & lint UI code
     runs-on: ubuntu-22.04
+    if: ${{ needs.changes.outputs.frontend == 'true' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
@@ -293,6 +317,7 @@ jobs:
   analyze:
     name: Process & analyze test artifacts
     runs-on: ubuntu-22.04
+    if: ${{ needs.changes.outputs.backend == 'true' || needs.changes.outputs.frontend == 'true' }}
     needs:
       - test-go
       - build-ui
@@ -359,11 +384,10 @@ jobs:
   test-e2e:
     name: Run end-to-end tests
     runs-on: ubuntu-22.04
+    if: ${{ needs.changes.outputs.backend == 'true' }}
     strategy:
       matrix:
         k3s-version: [v1.26.0, v1.25.4, v1.24.3, v1.23.3]
-    needs: 
-      - build-go
     env:
       GOPATH: /home/runner/go
       ARGOCD_FAKE_IN_CLUSTER: "true"

ui/src/app/index.tsx

@@ -3,7 +3,7 @@ import * as ReactDOM from 'react-dom';
 import * as Moment from 'moment';
 import {App} from './app';
 
-ReactDOM.render(<App />, document.getElementById('app'));
+ReactDOM.render(<><App /></>, document.getElementById('app'));
 
 const mdl = module as any;
 if (mdl.hot) {