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#!/usr/bin/env python3
# -*- mode: python -*-
#
# Copyright (c) 2016 Weitian LI <liweitianux@live.com>
# MIT license
"""
Simulate the low-frequency radio foregrounds for the 21cm EoR signal.
"""
import os
import sys
import argparse
import logging
from fg21sim.foregrounds import Foregrounds
from fg21sim.configs import configs, validate_configs
from fg21sim.utils import setup_logging
def main():
parser = argparse.ArgumentParser(
description="Simulate the radio foregrounds for 21cm EoR signal")
parser.add_argument("config", help="user configuration file")
parser.add_argument("-l", "--log", dest="loglevel", default=None,
choices=["DEBUG", "INFO", "WARNING",
"ERROR", "CRITICAL"],
help="set the log level")
parser.add_argument("-L", "--logfile", default=None,
help="filename where to save the log messages")
parser.add_argument("-Q", "--quiet", action="store_true",
help="be quiet so do not log messages to screen")
args = parser.parse_args()
configs.read_userconfig(args.config)
if os.environ.get("DEBUG_FG21SIM"):
print("DEBUG: Current configurations:", configs._config,
sep="\n", file=sys.stderr)
validate_configs(configs)
if args.quiet:
log_stream = ""
else:
log_stream = None
setup_logging(dict_config=configs.logging,
level=args.loglevel,
stream=log_stream,
logfile=args.logfile)
tool = os.path.basename(sys.argv[0])
logger = logging.getLogger(tool)
logger.info("COMMAND: {0}".format(" ".join(sys.argv)))
fg = Foregrounds(configs)
fg.preprocess()
fg.simulate()
fg.postprocess()
if __name__ == "__main__":
main()
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