Fixes the crash when the folder doesn't exist

wahoomc/constants.py

@@ -20,6 +20,9 @@
 OSMOSIS_WIN_FILE_PATH = os.path.join(
     USER_TOOLING_WIN_DIR, 'Osmosis', 'bin', 'osmosis.bat')
 
+# Note: some countries have unsupported characters by utf-8 that cause UnicodeDecodeError
+SUBPROCESS_ENCODING = "UTF-8" # Turkey: cp857
+
 # Python Package - wahooMapsCreator directory
 WAHOO_MC_DIR = os.path.dirname(__file__)
 RESOURCES_DIR = os.path.join(WAHOO_MC_DIR, 'resources')

wahoomc/file_directory_functions.py

@@ -135,7 +135,7 @@ def delete_everything_in_folder(folder):
     """
     delete all files and directories of given folder
     """
-    files_and_folders = list(os.listdir(folder)) # [f for f in os.listdir(folder)]
+    files_and_folders = list(os.listdir(folder)) if os.path.exists(folder) else [] # [f for f in os.listdir(folder)]
 
     for file in files_and_folders:
         try:

wahoomc/osm_maps_functions.py

@@ -28,6 +28,7 @@
 from wahoomc.constants import VERSION
 from wahoomc.constants import OSMOSIS_WIN_FILE_PATH
 from wahoomc.constants import USER_DL_DIR
+from wahoomc.constants import SUBPROCESS_ENCODING
 
 from wahoomc.timings import Timings
 
@@ -40,11 +41,11 @@ def run_subprocess_and_log_output(cmd, error_message, cwd=""):
     """
     if not cwd:
         process = subprocess.run(
-            cmd, capture_output=True, text=True, encoding="utf-8", check=False)
+            cmd, capture_output=True, text=True, encoding=SUBPROCESS_ENCODING, check=False)
 
     else:
         process = subprocess.run(  # pylint: disable=consider-using-with
-            cmd, capture_output=True, cwd=cwd, text=True, encoding="utf-8", check=False)
+            cmd, capture_output=True, cwd=cwd, text=True, encoding=SUBPROCESS_ENCODING, check=False)
 
 
     if error_message and process.returncode != 0:  # 0 means success