run generator scripts

cmake/scripts/cmake-build-cfg.py

@@ -12,6 +12,7 @@ import os
 import sys
 import argparse
 import shutil
+import stat
 
 
 def main():
@@ -102,7 +103,7 @@ def main():
             build_path = source_location + os.path.sep + build_folder
             remove_old_dir = False
         if remove_old_dir:
-            shutil.rmtree(build_path)
+            rm_build_dir(build_path)
     os.chdir(source_location)
     os.mkdir(build_folder)
     print(f"Navigating into build directory: {build_path}")
@@ -117,6 +118,14 @@ def main():
     print(f"\" {cmake_command} \"")
     os.system(cmake_command)
     print("-- CMake configuration done. --")
+    
+    
+def rm_build_dir(path: str):
+    # On windows the permissions of the build directory may have been set to read-only. If this
+    # is the case the permissions are changed before trying to delete the directory.
+    if not os.access(path, os.W_OK):
+        os.chmod(path, stat.S_IWUSR)
+    shutil.rmtree(path)
 
 
 def determine_source_location() -> str: