1 # Copyright (C) The Arvados Authors. All rights reserved.
3 # SPDX-License-Identifier: Apache-2.0
10 from future.utils import listitems, listvalues
16 raise ValueError("can't accept negative value: %s" % (num,))
19 retry_opt = argparse.ArgumentParser(add_help=False)
20 retry_opt.add_argument('--retries', type=_pos_int, default=10, help="""
21 Maximum number of times to retry server requests that encounter temporary
22 failures (e.g., server down). Default 10.""")
24 def _ignore_error(error):
27 def _raise_error(error):
30 def make_home_conf_dir(path, mode=None, errors='ignore'):
31 # Make the directory path under the user's home directory, making parent
32 # directories as needed.
33 # If the directory is newly created, and a mode is specified, chmod it
34 # with those permissions.
35 # If there's an error, return None if errors is 'ignore', else raise an
37 error_handler = _ignore_error if (errors == 'ignore') else _raise_error
38 tilde_path = os.path.join('~', path)
39 abs_path = os.path.expanduser(tilde_path)
40 if abs_path == tilde_path:
41 return error_handler(ValueError("no home directory available"))
44 except OSError as error:
45 if error.errno != errno.EEXIST:
46 return error_handler(error)
49 os.chmod(abs_path, mode)
52 CAUGHT_SIGNALS = [signal.SIGINT, signal.SIGQUIT, signal.SIGTERM]
54 def exit_signal_handler(sigcode, frame):
55 logging.getLogger('arvados').error("Caught signal {}, exiting.".format(sigcode))
58 def install_signal_handlers():
59 global orig_signal_handlers
60 orig_signal_handlers = {sigcode: signal.signal(sigcode, exit_signal_handler)
61 for sigcode in CAUGHT_SIGNALS}
63 def restore_signal_handlers():
64 for sigcode, orig_handler in listitems(orig_signal_handlers):
65 signal.signal(sigcode, orig_handler)