[webui] add extra args to export (#8178)

src/llamafactory/webui/components/export.py

@@ -12,6 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import json
 from collections.abc import Generator
 from typing import TYPE_CHECKING, Union
 
@@ -57,6 +58,7 @@ def save_model(
     export_legacy_format: bool,
     export_dir: str,
     export_hub_model_id: str,
+    extra_args: str,
 ) -> Generator[str, None, None]:
     user_config = load_config()
     error = ""
@@ -73,6 +75,11 @@ def save_model(
     elif export_quantization_bit in GPTQ_BITS and checkpoint_path and isinstance(checkpoint_path, list):
         error = ALERTS["err_gptq_lora"][lang]
 
+    try:
+        json.loads(extra_args)
+    except json.JSONDecodeError:
+        error = ALERTS["err_json_schema"][lang]
+
     if error:
         gr.Warning(error)
         yield error
@@ -92,6 +99,7 @@ def save_model(
         export_legacy_format=export_legacy_format,
         trust_remote_code=True,
     )
+    args.update(json.loads(extra_args))
 
     if checkpoint_path:
         if finetuning_type in PEFT_METHODS:  # list
@@ -118,6 +126,7 @@ def create_export_tab(engine: "Engine") -> dict[str, "Component"]:
     with gr.Row():
         export_dir = gr.Textbox()
         export_hub_model_id = gr.Textbox()
+        extra_args = gr.Textbox(value="{}")
 
     checkpoint_path: gr.Dropdown = engine.manager.get_elem_by_id("top.checkpoint_path")
     checkpoint_path.change(can_quantize, [checkpoint_path], [export_quantization_bit], queue=False)
@@ -141,6 +150,7 @@ def create_export_tab(engine: "Engine") -> dict[str, "Component"]:
             export_legacy_format,
             export_dir,
             export_hub_model_id,
+            extra_args,
         ],
         [info_box],
     )
@@ -153,6 +163,7 @@ def create_export_tab(engine: "Engine") -> dict[str, "Component"]:
         export_legacy_format=export_legacy_format,
         export_dir=export_dir,
         export_hub_model_id=export_hub_model_id,
+        extra_args=extra_args,
         export_btn=export_btn,
         info_box=info_box,
     )