74 lines
1.7 KiB
Python
74 lines
1.7 KiB
Python
import os
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import sys
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import time
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import os.path as osp
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from .tools import mkdir_if_missing
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__all__ = ["Logger", "setup_logger"]
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class Logger:
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"""Write console output to external text file.
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Imported from `<https://github.com/Cysu/open-reid/blob/master/reid/utils/logging.py>`_
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Args:
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fpath (str): directory to save logging file.
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Examples::
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>>> import sys
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>>> import os.path as osp
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>>> save_dir = 'output/experiment-1'
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>>> log_name = 'train.log'
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>>> sys.stdout = Logger(osp.join(save_dir, log_name))
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"""
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def __init__(self, fpath=None):
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self.console = sys.stdout
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self.file = None
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if fpath is not None:
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mkdir_if_missing(osp.dirname(fpath))
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self.file = open(fpath, "w")
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def __del__(self):
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self.close()
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def __enter__(self):
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pass
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def __exit__(self, *args):
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self.close()
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def write(self, msg):
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self.console.write(msg)
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if self.file is not None:
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self.file.write(msg)
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def flush(self):
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self.console.flush()
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if self.file is not None:
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self.file.flush()
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os.fsync(self.file.fileno())
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def close(self):
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self.console.close()
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if self.file is not None:
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self.file.close()
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def setup_logger(output=None):
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if output is None:
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return
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if output.endswith(".txt") or output.endswith(".log"):
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fpath = output
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else:
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fpath = osp.join(output, "log.txt")
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if osp.exists(fpath):
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# make sure the existing log file is not over-written
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fpath += time.strftime("-%Y-%m-%d-%H-%M-%S")
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sys.stdout = Logger(fpath)
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