server : (web ui) Various improvements, now use vite as bundler

.github/workflows/server.yml

@@ -76,20 +76,26 @@ jobs:
         run: |
           pip install -r examples/server/tests/requirements.txt
 
-      - name: Verify server deps
-        id: verify_server_deps
+      # Setup nodejs (to be used for verifying bundled index.html)
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - name: Verify bundled index.html
+        id: verify_server_index_html
         run: |
           git config --global --add safe.directory $(realpath .)
-          cd examples/server
-          git ls-files --others --modified
+          cd examples/server/webui
           git status
-          ./deps.sh
+          npm ci
+          npm run build
           git status
-          not_ignored_files="$(git ls-files --others --modified)"
-          echo "Modified files: ${not_ignored_files}"
-          if [ -n "${not_ignored_files}" ]; then
-            echo "Repository is dirty or server deps are not built as expected"
-            echo "${not_ignored_files}"
+          modified_files="$(git status -s)"
+          echo "Modified files: ${modified_files}"
+          if [ -n "${modified_files}" ]; then
+            echo "Repository is dirty or server/webui is not built as expected"
+            echo "Hint: You may need to follow Web UI build guide in server/README.md"
+            echo "${modified_files}"
             exit 1
           fi
 

.gitignore

@@ -104,6 +104,10 @@ examples/server/*.mjs.hpp
 !examples/sycl/*.bat
 !examples/sycl/*.sh
 
+# Server Web UI temporary files
+node_modules
+examples/server/webui/dist
+
 # Python
 
 /.venv

Makefile

@@ -1141,8 +1141,15 @@ $(LIB_COMMON_S): $(OBJ_COMMON)
 # Include dependency files
 -include $(DEP_FILES)
 
+# Clean generated server assets
+clean-server-assets:
+	find examples/server -type f -name "*.js.hpp"   -delete
+	find examples/server -type f -name "*.mjs.hpp"  -delete
+	find examples/server -type f -name "*.css.hpp"  -delete
+	find examples/server -type f -name "*.html.hpp" -delete
+
 # Clean rule
-clean:
+clean: clean-server-assets
 	rm -vrf $(BUILD_TARGETS) $(TEST_TARGETS)
 	rm -rvf *.a *.dll *.so *.dot
 	find ggml src common tests examples pocs -type f -name "*.o" -delete
@@ -1350,20 +1357,14 @@ llama-server: \
 	examples/server/utils.hpp \
 	examples/server/httplib.h \
 	examples/server/index.html.hpp \
-	examples/server/completion.js.hpp \
 	examples/server/loading.html.hpp \
-	examples/server/deps_daisyui.min.css.hpp \
-	examples/server/deps_markdown-it.js.hpp \
-	examples/server/deps_tailwindcss.js.hpp \
-	examples/server/deps_vue.esm-browser.js.hpp \
 	common/json.hpp \
-	common/stb_image.h \
 	$(OBJ_ALL)
 	$(CXX) $(CXXFLAGS) -c $< -o $(call GET_OBJ_FILE, $<)
 	$(CXX) $(CXXFLAGS) $(filter-out %.h %.hpp $<,$^) -Iexamples/server $(call GET_OBJ_FILE, $<) -o $@ $(LDFLAGS) $(LWINSOCK2)
 
 # Portable equivalent of `cd examples/server/public && xxd -i $(notdir $<) ../$(notdir $<).hpp`:
-examples/server/%.hpp: examples/server/public/% Makefile
+examples/server/%.hpp: examples/server/public/% FORCE Makefile
 	@( export NAME=$(subst .,_,$(subst -,_,$(notdir $<))) && \
 		echo "unsigned char $${NAME}[] = {" && \
 		cat $< | od -v -t x1 -An | sed -E 's/([0-9a-fA-F]+)/0x\1, /g' && \
@@ -1538,7 +1539,7 @@ llama-q8dot: pocs/vdot/q8dot.cpp ggml/src/ggml.o \
 # Deprecated binaries that we want to keep around long enough for people to migrate to the new filenames, then these can be removed.
 #
 # Mark legacy binary targets as .PHONY so that they are always checked.
-.PHONY: main quantize perplexity embedding server
+.PHONY: FORCE main quantize perplexity embedding server
 
 # Define the object file target
 examples/deprecation-warning/deprecation-warning.o: examples/deprecation-warning/deprecation-warning.cpp

examples/server/CMakeLists.txt

@@ -16,12 +16,7 @@ set(TARGET_SRCS
 )
 set(PUBLIC_ASSETS
     index.html
-    completion.js
     loading.html
-    deps_daisyui.min.css
-    deps_markdown-it.js
-    deps_tailwindcss.js
-    deps_vue.esm-browser.js
 )
 
 foreach(asset ${PUBLIC_ASSETS})
@@ -33,11 +28,20 @@ foreach(asset ${PUBLIC_ASSETS})
         OUTPUT "${output}"
         COMMAND "${CMAKE_COMMAND}" "-DINPUT=${input}" "-DOUTPUT=${output}" -P "${PROJECT_SOURCE_DIR}/scripts/xxd.cmake"
     )
+    set_source_files_properties(${output} PROPERTIES GENERATED TRUE)
 endforeach()
 
 add_executable(${TARGET} ${TARGET_SRCS})
 install(TARGETS ${TARGET} RUNTIME)
 
+# clean up generated files in pre-build step
+foreach(asset ${PUBLIC_ASSETS})
+    set(output "${CMAKE_CURRENT_BINARY_DIR}/${asset}.hpp")
+    add_custom_command(TARGET ${TARGET} PRE_BUILD
+        COMMAND "${CMAKE_COMMAND}" -E remove -f "${output}"
+    )
+endforeach()
+
 target_link_libraries(${TARGET} PRIVATE common ${CMAKE_THREAD_LIBS_INIT})
 
 if (LLAMA_SERVER_SSL)

examples/server/README.md

@@ -223,6 +223,37 @@ services:
   cmake --build build --config Release -t llama-server
   ```
 
+## Web UI
+
+The project includes a web-based user interface that enables interaction with the model through the `/chat/completions` endpoint.
+
+The web UI is developed using:
+- `vue` framework for frontend development
+- `tailwindcss` and `daisyui` for styling
+- `vite` for build tooling
+
+A pre-built version is available as a single HTML file under `/public` directory.
+
+To build or to run the dev server (with hot reload):
+
+```sh
+# make sure you have nodejs installed
+cd examples/server/webui
+npm i
+
+# to run the dev server
+npm run dev
+
+# to build the public/index.html
+npm run build
+```
+
+NOTE: if you are using the vite dev server, you can change the API base URL to llama.cpp. To do that, run this code snippet in browser's console:
+
+```js
+localStorage.setItem('base', 'http://localhost:8080')
+```
+
 ## Quick Start
 
 To get started right away, run the following command, making sure to use the correct path for the model you have: