feat: Allow user to edit agent files/directories and apply changes without reloading anything

PiperOrigin-RevId: 780710003

src/google/adk/cli/cli_tools_click.py

@@ -583,6 +583,13 @@ def fast_api_common_options():
         default=False,
         help="Optional. Whether to enable A2A endpoint.",
     )
+    @click.option(
+        "--reload_agents",
+        is_flag=True,
+        default=False,
+        show_default=True,
+        help="Optional. Whether to enable live reload for agents changes.",
+    )
     @functools.wraps(func)
     def wrapper(*args, **kwargs):
       return func(*args, **kwargs)
@@ -625,6 +632,7 @@ def cli_web(
     session_db_url: Optional[str] = None,  # Deprecated
     artifact_storage_uri: Optional[str] = None,  # Deprecated
     a2a: bool = False,
+    reload_agents: bool = False,
 ):
   """Starts a FastAPI server with Web UI for agents.
 
@@ -674,6 +682,7 @@ def cli_web(
       a2a=a2a,
       host=host,
       port=port,
+      reload_agents=reload_agents,
   )
   config = uvicorn.Config(
       app,
@@ -721,6 +730,7 @@ def cli_api_server(
     session_db_url: Optional[str] = None,  # Deprecated
     artifact_storage_uri: Optional[str] = None,  # Deprecated
     a2a: bool = False,
+    reload_agents: bool = False,
 ):
   """Starts a FastAPI server for agents.
 
@@ -748,6 +758,7 @@ def cli_api_server(
           a2a=a2a,
           host=host,
           port=port,
+          reload_agents=reload_agents,
       ),
       host=host,
       port=port,
@@ -861,6 +872,7 @@ def cli_deploy_cloud_run(
     session_db_url: Optional[str] = None,  # Deprecated
     artifact_storage_uri: Optional[str] = None,  # Deprecated
     a2a: bool = False,
+    reload_agents: bool = False,
 ):
   """Deploys an agent to Cloud Run.