feat: add auto_save option to Settings and CLI (#3386)

* feat: Add auto save feature in Langflow run function.

* feat: Add auto_save field to ConfigResponse model.

* refactor: Move logger import to the top in __main__.py and update auto save option help message.

* refactor: Update variable names for auto save to auto saving.

src/backend/base/langflow/__main__.py

@@ -20,13 +20,13 @@
 from rich.table import Table
 from sqlmodel import select
 
+from langflow.logging.logger import configure, logger
 from langflow.main import setup_app
 from langflow.services.database.models.folder.utils import create_default_folder_if_it_doesnt_exist
 from langflow.services.database.utils import session_getter
 from langflow.services.deps import get_db_service, get_settings_service, session_scope
 from langflow.services.settings.constants import DEFAULT_SUPERUSER
 from langflow.services.utils import initialize_services
-from langflow.logging.logger import configure, logger
 from langflow.utils.util import update_settings
 
 console = Console()
@@ -120,6 +120,11 @@ def run(
         help="Enables the store features.",
         envvar="LANGFLOW_STORE",
     ),
+    auto_saving: bool = typer.Option(
+        True,
+        help="Defines if the auto save is enabled.",
+        envvar="LANGFLOW_AUTO_SAVING",
+    ),
 ):
     """
     Run Langflow.
@@ -137,6 +142,7 @@ def run(
         cache=cache,
         components_path=components_path,
         store=store,
+        auto_saving=auto_saving,
     )
     # create path object if path is provided
     static_files_dir: Optional[Path] = Path(path) if path else None

src/backend/base/langflow/api/v1/schemas.py

@@ -330,3 +330,4 @@ class FlowDataRequest(BaseModel):
 
 class ConfigResponse(BaseModel):
     frontend_timeout: int
+    auto_saving: bool

src/backend/base/langflow/services/settings/base.py

@@ -152,6 +152,10 @@ class Settings(BaseSettings):
     vertex_builds_storage_enabled: bool = True
     """If set to True, Langflow will keep track of each vertex builds (outputs) in the UI for any flow."""
 
+    # Config
+    auto_saving: bool = True
+    """If set to True, Langflow will auto save flows."""
+
     @field_validator("dev")
     @classmethod
     def set_dev(cls, value):

src/backend/base/langflow/utils/util.py

@@ -8,11 +8,11 @@
 
 from docstring_parser import parse
 
+from langflow.logging.logger import logger
 from langflow.schema import Data
 from langflow.services.deps import get_settings_service
 from langflow.template.frontend_node.constants import FORCE_SHOW_FIELDS
 from langflow.utils import constants
-from langflow.logging.logger import logger
 
 
 def unescape_string(s: str):
@@ -427,6 +427,7 @@ def update_settings(
     remove_api_keys: bool = False,
     components_path: Optional[Path] = None,
     store: bool = True,
+    auto_saving: bool = True,
 ):
     """Update the settings from a config file."""
     from langflow.services.utils import initialize_settings_service
@@ -450,6 +451,9 @@ def update_settings(
     if not store:
         logger.debug("Setting store to False")
         settings_service.settings.update_settings(store=False)
+    if not auto_saving:
+        logger.debug("Setting auto_saving to False")
+        settings_service.settings.update_settings(auto_saving=False)
 
 
 def is_class_method(func, cls):