zhoutongqing:添加重新构建知识库功能 (#418)

Co-authored-by: imClumsyPanda <littlepanda0716@gmail.com>

webui.py

@@ -230,6 +230,22 @@ def add_vs_name(vs_name, chatbot):
         return gr.update(visible=True, choices=get_vs_list(), value=vs_name), gr.update(
             visible=False), gr.update(visible=False), gr.update(visible=True), chatbot
             
+# 自动化加载固定文件间中文件
+def init_set_vector_store(content_dir,vs_id,history):
+    try:
+        shutil.rmtree(VS_ROOT_PATH)
+        vs_path = os.path.join(VS_ROOT_PATH, vs_id)
+        sentence_size = gr.Number(value=SENTENCE_SIZE, precision=0,
+                                                  label="文本入库分句长度限制",
+                                                  interactive=True, visible=True)
+        vs_path, loaded_files = local_doc_qa.init_knowledge_vector_store(content_dir, vs_path, sentence_size)
+        model_status = """知识库构建成功"""
+    except Exception as e:
+        logger.error(e)
+        model_status = """知识库构建未成功"""
+        logger.info(model_status)
+    return history + [[None, model_status]]
+
 
 def refresh_vs_list():
     return gr.update(choices=get_vs_list())
@@ -470,7 +486,9 @@ with gr.Blocks(css=block_css, theme=gr.themes.Default(**default_theme_args)) as
         load_model_button.click(reinit_model, show_progress=True,
                                 inputs=[llm_model, embedding_model, llm_history_len, no_remote_model, use_ptuning_v2,
                                         use_lora, top_k, chatbot], outputs=chatbot)
-
+        load_knowlege_button = gr.Button("重新构建知识库")
+        load_knowlege_button.click(init_set_vector_store, show_progress=True,
+                                   inputs=[UPLOAD_ROOT_PATH, select_vs,chatbot], outputs=chatbot)
 (demo
  .queue(concurrency_count=3)
  .launch(server_name='0.0.0.0',