[releng] Update the workflow to build the front-end

Bug: #1
Signed-off-by: Laurent Fasani <[email protected]>

.github/workflows/build.yml

@@ -46,6 +46,18 @@ jobs:
         run: |
           echo "git_describe=$(git describe)" >> $GITHUB_ENV
 
+      - name: Build the frontend packages
+        run: |
+          echo "//npm.pkg.github.com/:_authToken=${{ github.token }}" >> .npmrc
+          echo "CI=true" >> $GITHUB_ENV
+          npm ci
+          npm run build
+
+      - name: Copy frontend artifacts
+        run: |
+          mkdir -p backend/deeplab-frontend/src/main/resources/static
+          cp -R frontend/deeplab/dist/* backend/deeplab-frontend/src/main/resources/static
+
       - name: Build the backend
         env:
           USERNAME: ${{ github.actor }}
@@ -58,4 +70,4 @@ jobs:
           USERNAME: ${{ github.actor }}
           PASSWORD: ${{ github.token }}
           GITHUB_TOKEN: ${{ github.token }}
-        run: mvn -B deploy -DskipTests --settings settings.xml
+        run: mvn -B deploy -DskipTests -f backend/pom.xml --settings settings.xml