def _apply_update_stage1_windows():
"""Apply the Windows specific part of stage 1.
On Windows files that are currently in use (``source-python.dll``) can't be
replaced. Thus, this function checks if ``source-python.vdf`` exists. If it
does, the new ``source-python.dll`` is copied to the addons directory with
a new name (``source-python2.dll``). After that the VDF entry is modified
to point to the new loader.
If ``source-python.vdf`` does not exist, manual action is required.
"""
if not VDF_FILE.isfile():
update_logger.log_message(
f'Stage 1 has been applied. Please shutdown your server and move '
f'(do not copy) {LOADER_UPDATE_FILE} to {LOADER_FILE}. After that '
f'start your server to apply stage 2.')
else:
update_logger.log_debug('Determining current VDF entry...')
kv = KeyValues.from_file(VDF_FILE)
# Get the current and new entry for the VDF file
current_entry = kv.get_string('file')
if current_entry == SP_VDF2:
new_entry = SP_VDF1
elif current_entry == SP_VDF1:
new_entry = SP_VDF2
else:
raise ValueError(f'Unexpected entry in VDF: {current_entry}')
update_logger.log_debug(f'Current VDF entry: {current_entry}')
update_logger.log_debug(f'New VDF entry: {new_entry}')
update_logger.log_debug(
'Moving new loader binary to game directory...')
LOADER_UPDATE_FILE.move(GAME_PATH / f'{new_entry}.{BINARY_EXT}')
kv.set_string('file', new_entry)
kv.save_to_file(VDF_FILE)
update_logger.log_message(
'Stage 1 has been applied. Restart your server to apply stage 2.')
