[CI] Frontend ci require passed before merge (#15735)

* frontend ci require passed before merge

.asf.yaml

@@ -45,6 +45,7 @@ github:
           - Unit Test
           - E2E
           - Docs
+          - Frontend Build
           - "Mergeable: milestone-label-check"
       required_pull_request_reviews:
         dismiss_stale_reviews: true

.github/workflows/frontend.yml

@@ -38,10 +38,25 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  paths-filter:
+    name: Frontend-Path-Filter
+    runs-on: ubuntu-latest
+    outputs:
+      not-ignore: ${{ steps.filter.outputs.not-ignore }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: dorny/paths-filter@b2feaf19c27470162a626bd6fa8438ae5b263721
+        id: filter
+        with:
+          filters: |
+            not-ignore:
+              - '!(docs/**)'
   build:
     name: Build
+    needs: paths-filter
+    if: ${{ (needs.paths-filter.outputs.not-ignore == 'true') || (github.event_name == 'push') }}
     runs-on: ${{ matrix.os }}
-    timeout-minutes: 20
+    timeout-minutes: 30
     strategy:
       matrix:
         os: [ ubuntu-latest, macos-latest ]
@@ -56,9 +71,28 @@ jobs:
         uses: actions/setup-node@v2
         with:
           node-version: 16
-      - name: Compile and Build
+      - name: Compile and Build on ${{ matrix.os }}
         run: |
+          set -x
           npm install pnpm@7 -g
           pnpm install
           pnpm run lint
           pnpm run build:prod
+  result:
+    name: Frontend Build
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    needs: [ build, paths-filter ]
+    if: always()
+    steps:
+      - uses: actions/checkout@v2
+      - name: Status
+        run: |
+          if [[ ${{ needs.paths-filter.outputs.not-ignore }} == 'false' && ${{ github.event_name }} == 'pull_request' ]]; then
+            echo "Skip Frontend Build!"
+            exit 0
+          fi
+          if [[ ${{ needs.build.result }} != 'success' ]]; then
+            echo "Frontend Build Failed!"
+            exit -1
+          fi