cmake/ui : refactor the build (#23352)

.github/workflows/release.yml

@@ -1234,6 +1234,9 @@ jobs:
           path: llama-${{ steps.tag.outputs.name }}-bin-${{ matrix.chip_type }}-openEuler-${{ matrix.arch }}${{ matrix.use_acl_graph == 'on' && '-aclgraph' || '' }}.tar.gz
           name: llama-bin-${{ matrix.chip_type }}-openEuler-${{ matrix.arch }}${{ matrix.use_acl_graph == 'on' && '-aclgraph' || '' }}.tar.gz
 
+  ui-build:
+    uses: ./.github/workflows/ui-build.yml
+
   release:
     if: ${{ ( github.event_name == 'push' && github.ref == 'refs/heads/master' ) || github.event.inputs.create_release == 'true' }}
 
@@ -1259,6 +1262,7 @@ jobs:
       - macOS-cpu
       - ios-xcode-build
       - openEuler-cann
+      - ui-build
 
     outputs:
       tag_name: ${{ steps.tag.outputs.name }}
@@ -1318,6 +1322,18 @@ jobs:
           mv -v artifact/*.zip release
           mv -v artifact/*.tar.gz release
 
+      - name: Download UI build
+        id: download_ui
+        uses: actions/download-artifact@v7
+        with:
+          name: ui-build
+          path: ./ui-dist
+
+      - name: Package UI
+        id: package_ui
+        run: |
+          tar -czvf release/llama-${{ steps.tag.outputs.name }}-ui.tar.gz --transform "s,^\.,llama-${{ steps.tag.outputs.name }}," -C ./ui-dist .
+
       - name: Create release
         id: create_release
         uses: ggml-org/action-create-release@v1
@@ -1367,6 +1383,9 @@ jobs:
             - [openEuler aarch64 (310p)](https://github.com/ggml-org/llama.cpp/releases/download/${{ steps.tag.outputs.name }}/llama-${{ steps.tag.outputs.name }}-bin-310p-openEuler-aarch64.tar.gz)
             - [openEuler aarch64 (910b, ACL Graph)](https://github.com/ggml-org/llama.cpp/releases/download/${{ steps.tag.outputs.name }}/llama-${{ steps.tag.outputs.name }}-bin-910b-openEuler-aarch64-aclgraph.tar.gz)
 
+            **UI:**
+            - [UI](https://github.com/ggml-org/llama.cpp/releases/download/${{ steps.tag.outputs.name }}/llama-${{ steps.tag.outputs.name }}-ui.tar.gz)
+
       - name: Upload release
         id: upload_release
         uses: actions/github-script@v8

.github/workflows/server.yml

@@ -54,8 +54,13 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  ui-build:
+    name: Build Web UI
+    uses: ./.github/workflows/ui-build.yml
+
   server:
     runs-on: ubuntu-latest
+    needs: ui-build
 
     name: server (${{ matrix.wf_name }})
     strategy:
@@ -93,12 +98,11 @@ jobs:
           fetch-depth: 0
           ref: ${{ github.event.inputs.sha || github.event.pull_request.head.sha || github.sha || github.head_ref || github.ref_name }}
 
-      - name: Setup Node.js
-        uses: actions/setup-node@v6
+      - name: Download built UI
+        uses: actions/download-artifact@v7
         with:
-          node-version: "24"
-          cache: "npm"
-          cache-dependency-path: "tools/ui/package-lock.json"
+          name: ui-build
+          path: tools/ui/dist
 
       - name: Build
         id: cmake_build

.github/workflows/ui-build.yml

@@ -31,7 +31,7 @@ jobs:
 
       - name: Generate checksums
         run: |
-          cd build/tools/ui/dist
+          cd tools/ui/dist
           for f in *; do
             sha256sum "$f" | awk '{print $1, $2}' >> checksums.txt
           done
@@ -40,5 +40,5 @@ jobs:
         uses: actions/upload-artifact@v6
         with:
           name: ui-build
-          path: build/tools/ui/dist/
+          path: tools/ui/dist/
           retention-days: 1

.github/workflows/ui-publish.yml

@@ -38,7 +38,7 @@ jobs:
         uses: actions/download-artifact@v7
         with:
           name: ui-build
-          path: build/tools/ui/dist/
+          path: tools/ui/dist/
 
       - name: Install Hugging Face Hub CLI
         run: pip install -U huggingface_hub
@@ -49,12 +49,12 @@ jobs:
       - name: Sync built files to Hugging Face bucket (version tag)
         run: |
           # Upload the built files to the Hugging Face bucket under the release version
-          hf buckets sync build/tools/ui/dist hf://buckets/ggml-org/${{ env.HF_BUCKET_NAME }}/${{ inputs.version_tag }} --delete --quiet
+          hf buckets sync tools/ui/dist hf://buckets/ggml-org/${{ env.HF_BUCKET_NAME }}/${{ inputs.version_tag }} --delete --quiet
 
       - name: Sync built files to Hugging Face bucket (latest)
         run: |
           # Also upload to the 'latest' directory for fallback downloads
-          hf buckets sync build/tools/ui/dist hf://buckets/ggml-org/${{ env.HF_BUCKET_NAME }}/latest --delete --quiet
+          hf buckets sync tools/ui/dist hf://buckets/ggml-org/${{ env.HF_BUCKET_NAME }}/latest --delete --quiet
 
       - name: Verify upload
         run: |