feat: add config for temp path and temp path cleanup on launch (#1992)

* Added options to set the Gradio cache path and clear cache on launch.

* Renamed cache to temp

* clear temp

* feat: do not delete temp folder but only clean content

also use fallback to system temp dir
see https://github.com/gradio-app/gradio/blob/6683ab2589f9d8658e1f51acc1b7526edce988d3/gradio/utils.py#L1151

* refactor: code cleanup

* feat: unify arg --temp-path and new temp_path config value

* feat: change default temp dir from gradio to fooocus

* refactor: move temp path method definition and configs

* feat: rename get_temp_path to init_temp_path

---------

Co-authored-by: Magee <koshms3@gmail.com>
Co-authored-by: steveyourcreativepeople <steve@yourcreativepeople.com>
Co-authored-by: Manuel Schmid <manuel.schmid@odt.net>

launch.py

@@ -1,6 +1,6 @@
 import os
-import sys
 import ssl
+import sys
 
 print('[System ARGV] ' + str(sys.argv))
 
@@ -15,15 +15,13 @@ if "GRADIO_SERVER_PORT" not in os.environ:
 
 ssl._create_default_https_context = ssl._create_unverified_context
 
-
 import platform
 import fooocus_version
 
 from build_launcher import build_launcher
-from modules.launch_util import is_installed, run, python, run_pip, requirements_met
+from modules.launch_util import is_installed, run, python, run_pip, requirements_met, delete_folder_content
 from modules.model_loader import load_file_from_url
 
-
 REINSTALL_ALL = False
 TRY_INSTALL_XFORMERS = False
 
@@ -68,6 +66,7 @@ vae_approx_filenames = [
      'https://huggingface.co/lllyasviel/misc/resolve/main/xl-to-v1_interposer-v3.1.safetensors')
 ]
 
+
 def ini_args():
     from args_manager import args
     return args
@@ -77,14 +76,23 @@ prepare_environment()
 build_launcher()
 args = ini_args()
 
-
 if args.gpu_device_id is not None:
     os.environ['CUDA_VISIBLE_DEVICES'] = str(args.gpu_device_id)
     print("Set device to:", args.gpu_device_id)
 
-
 from modules import config
 
+os.environ['GRADIO_TEMP_DIR'] = config.temp_path
+
+if config.temp_path_cleanup_on_launch:
+    print(f'[Cleanup] Attempting to delete content of temp dir {config.temp_path}')
+    result = delete_folder_content(config.temp_path, '[Cleanup] ')
+    if result:
+        print("[Cleanup] Cleanup successful")
+    else:
+        print(f"[Cleanup] Failed to delete content of temp dir.")
+
+
 def download_models():
     for file_name, url in vae_approx_filenames:
         load_file_from_url(url=url, model_dir=config.path_vae_approx, file_name=file_name)
@@ -123,5 +131,4 @@ def download_models():
 
 download_models()
 
-
 from webui import *