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# Copyright 2015 Lars Wirzenius
#
# This program 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.
#
# This program 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 <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=
class Logger(object):
def __init__(self):
self._outputs = []
self._indentation = 2
self._level = 0
def add_output_file(self, output, quiet=None):
self._outputs.append((output, quiet))
def drop_output_file(self, output):
self._outputs = [(o, q) for o, q in self._outputs if o != output]
def set_indentation(self, indentation):
self._indentation = indentation
def __enter__(self):
self._level += 1
def __exit__(self, *args):
self._level -= 1
def log(self, quietable, msg, **kwargs):
indent = ' ' * self._indentation * self._level
for f, quiet in self._outputs:
if not quiet or not quietable:
f.write(indent + msg.format(**kwargs) + '\n')
f.flush()
def important(self, msg, **kwargs): # pragma: no cover
self.log(False, msg, **kwargs)
def chatty(self, msg, **kwargs): # pragma: no cover
self.log(True, msg, **kwargs)
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