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# Copyright (C) 2018 Artsiom Sanakoyeu and Dmytro Kotovenko
#
# This file is part of Adaptive Style Transfer
#
# Adaptive Style Transfer is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Adaptive Style Transfer is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import sys
import os
import subprocess
class Logger(object):
def __init__(self, filepath=None, mode='w'):
self.file = None
self.filepath = filepath
if filepath is not None:
self.file = open(filepath, mode=mode, buffering=0)
def __enter__(self):
return self
def log(self, msg, should_print=True):
if should_print:
print '[LOG] {}'.format(msg)
if self.file is not None:
self.file.write('{}\n'.format(msg))
def write(self, msg):
sys.__stdout__.write(msg)
if self.file is not None:
self.file.write(msg)
self.file.flush()
def close(self):
if self.file is not None:
self.file.close()
def __exit__(self, exc_type, exc_val, exc_tb):
self.close()
def log(logger, msg, should_print=True):
if logger:
logger.log(msg, should_print)
else:
if should_print:
print msg
class Tee:
def __init__(self, log_path):
self.prev_stdout_descriptor = os.dup(sys.stdout.fileno())
self.prev_stderr_descriptor = os.dup(sys.stderr.fileno())
tee = subprocess.Popen(['tee', log_path], stdin=subprocess.PIPE)
os.dup2(tee.stdin.fileno(), sys.stdout.fileno())
os.dup2(tee.stdin.fileno(), sys.stderr.fileno())
def close(self):
os.dup2(self.prev_stdout_descriptor, sys.stdout.fileno())
os.close(self.prev_stdout_descriptor)
os.dup2(self.prev_stderr_descriptor, sys.stderr.fileno())
os.close(self.prev_stderr_descriptor)
def __enter__(self):
return self
def __exit__(self, exc_type, exc_val, exc_tb):
self.close()
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