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#!/usr/bin/env python3
import functools
import logging
import os
import pdb
import sys
import traceback
# This module is commonly used by others in here and should avoid
# taking any unnecessary dependencies back on them.
from argparse_utils import ActionNoYes
import config
import logging_utils
logger = logging.getLogger(__name__)
args = config.add_commandline_args(
f'Bootstrap ({__file__})',
'Args related to python program bootstrapper and Swiss army knife')
args.add_argument(
'--debug_unhandled_exceptions',
action=ActionNoYes,
default=False,
help='Break into pdb on top level unhandled exceptions.'
)
def handle_uncaught_exception(
exc_type,
exc_value,
exc_traceback):
if issubclass(exc_type, KeyboardInterrupt):
sys.__excepthook__(exc_type, exc_value, exc_traceback)
return
logger.exception(f'Unhandled top level {exc_type}',
exc_info=(exc_type, exc_value, exc_traceback))
traceback.print_exception(exc_type, exc_value, exc_traceback)
if config.config['debug_unhandled_exceptions']:
logger.info("Invoking the debugger...")
pdb.pm()
def initialize(entry_point):
"""Remember to initialize config and logging before running main."""
@functools.wraps(entry_point)
def initialize_wrapper(*args, **kwargs):
sys.excepthook = handle_uncaught_exception
if (
'__globals__' in entry_point.__dict__ and
'__file__' in entry_point.__globals__
):
config.parse(entry_point.__globals__['__file__'])
else:
config.parse(None)
logging_utils.initialize_logging(logging.getLogger())
config.late_logging()
logger.debug(f'Starting {entry_point.__name__} (program entry point)')
ret = None
import stopwatch
with stopwatch.Timer() as t:
ret = entry_point(*args, **kwargs)
logger.debug(
f'{entry_point.__name__} (program entry point) returned {ret}.'
)
walltime = t()
(utime, stime, cutime, cstime, elapsed_time) = os.times()
logger.debug('\n'
f'user: {utime}s\n'
f'system: {stime}s\n'
f'child user: {cutime}s\n'
f'child system: {cstime}s\n'
f'machine uptime: {elapsed_time}s\n'
f'walltime: {walltime}s')
if ret != 0:
logger.info(f'Exit {ret}')
else:
logger.debug(f'Exit {ret}')
sys.exit(ret)
return initialize_wrapper
|
