Current File : //snap/core22/current/usr/share/subiquity/subiquitycore/log.py
# Copyright 2015 Canonical, Ltd.
#
# 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, version 3.
#
# 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/>.
import grp
import logging
import os
from subiquitycore.file_util import _DEF_PERMS, _DEF_GROUP
def setup_logger(dir, base='subiquity'):
os.makedirs(dir, exist_ok=True)
if os.getuid() == 0:
os.chmod(dir, 0o750)
os.chown(dir, -1, grp.getgrnam(_DEF_GROUP).gr_gid)
logger = logging.getLogger("")
logger.setLevel(logging.DEBUG)
r = {}
for level in 'info', 'debug':
nopid_file = os.path.join(dir, "{}-{}.log".format(base, level))
logfile = "{}.{}".format(nopid_file, os.getpid())
handler = logging.FileHandler(logfile)
os.chmod(logfile, _DEF_PERMS)
if os.getuid() == 0:
os.chown(logfile, -1, grp.getgrnam(_DEF_GROUP).gr_gid)
# os.symlink cannot replace an existing file or symlink so create
# it and then rename it over.
tmplink = logfile + ".link"
os.symlink(os.path.basename(logfile), tmplink)
os.rename(tmplink, nopid_file)
handler.setLevel(getattr(logging, level.upper()))
handler.setFormatter(
logging.Formatter(
"%(asctime)s %(levelname)s %(name)s:%(lineno)d %(message)s"))
logger.addHandler(handler)
r[level] = logfile
return r
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