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

modules/launch_util.py

@@ -1,6 +1,7 @@
 import os
 import importlib
 import importlib.util
+import shutil
 import subprocess
 import sys
 import re
@@ -9,9 +10,6 @@ import importlib.metadata
 import packaging.version
 from packaging.requirements import Requirement
 
-
-
-
 logging.getLogger("torch.distributed.nn").setLevel(logging.ERROR)  # sshh...
 logging.getLogger("xformers").addFilter(lambda record: 'A matching Triton is not available' not in record.getMessage())
 
@@ -101,3 +99,19 @@ def requirements_met(requirements_file):
 
     return True
 
+
+def delete_folder_content(folder, prefix=None):
+    result = True
+
+    for filename in os.listdir(folder):
+        file_path = os.path.join(folder, filename)
+        try:
+            if os.path.isfile(file_path) or os.path.islink(file_path):
+                os.unlink(file_path)
+            elif os.path.isdir(file_path):
+                shutil.rmtree(file_path)
+        except Exception as e:
+            print(f'{prefix}Failed to delete {file_path}. Reason: {e}')
+            result = False
+
+    return result