ED/EDMarketConnector
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Comments added, some noqa and split a line

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Athanasius 2021-01-18 22:18:54 +00:00
parent 1714219c17
commit 35a476f209
1 changed files with 9 additions and 2 deletions
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11
EDMarketConnector.py
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@ -34,7 +34,7 @@ if __name__ == '__main__':
from config import appversion, appversion_nobuild, config, copyright from config import appversion, appversion_nobuild, config, copyright
from EDMCLogging import edmclogger, logger, logging from EDMCLogging import edmclogger, logger, logging
if __name__ == '__main__': if __name__ == '__main__': # noqa C901
# Command-line arguments # Command-line arguments
parser = argparse.ArgumentParser( parser = argparse.ArgumentParser(
prog=appname, prog=appname,
@ -76,12 +76,16 @@ if __name__ == '__main__':
print(f'no_other_instance_running(): journal_dir_lockfile = {journal_dir_lockfile!r}') print(f'no_other_instance_running(): journal_dir_lockfile = {journal_dir_lockfile!r}')
locked = False
try: try:
msvcrt.locking(journal_dir_lockfile.fileno(), msvcrt.LK_NBLCK, 4096) msvcrt.locking(journal_dir_lockfile.fileno(), msvcrt.LK_NBLCK, 4096)
except Exception as e: except Exception as e:
print(f"Exception: Couldn't lock journal directory \"{journal_dir}\", assuming another process running\n{e!r}") print(f"Exception: Couldn't lock journal directory \"{journal_dir}\""
f", assuming another process running\n{e!r}")
locked = True
if locked:
# Need to do the check for this being an edmc:// auth callback # Need to do the check for this being an edmc:// auth callback
import ctypes import ctypes
from ctypes.wintypes import BOOL, HWND, INT, LPARAM, LPCWSTR, LPWSTR from ctypes.wintypes import BOOL, HWND, INT, LPARAM, LPCWSTR, LPWSTR
@ -120,6 +124,7 @@ if __name__ == '__main__':
def enumwindowsproc(window_handle, l_param): def enumwindowsproc(window_handle, l_param):
# class name limited to 256 - https://msdn.microsoft.com/en-us/library/windows/desktop/ms633576 # class name limited to 256 - https://msdn.microsoft.com/en-us/library/windows/desktop/ms633576
cls = ctypes.create_unicode_buffer(257) cls = ctypes.create_unicode_buffer(257)
# This conditional is exploded to make debugging slightly easier
if GetClassName(window_handle, cls, 257): if GetClassName(window_handle, cls, 257):
if cls.value == 'TkTopLevel': if cls.value == 'TkTopLevel':
if window_title(window_handle) == applongname: if window_title(window_handle) == applongname:
@ -131,6 +136,8 @@ if __name__ == '__main__':
ShowWindow(window_handle, SW_RESTORE) ShowWindow(window_handle, SW_RESTORE)
ShellExecute(0, None, sys.argv[1], None, None, SW_RESTORE) ShellExecute(0, None, sys.argv[1], None, None, SW_RESTORE)
return True # Do not remove, else this function as a callback breaks
# This performs the edmc://auth check and forward # This performs the edmc://auth check and forward
EnumWindows(enumwindowsproc, 0) EnumWindows(enumwindowsproc, 0)
return False # Another instance is running return False # Another instance is running