/usr/lib/python3/dist-packages/glances/__init__.py is in glances 2.1.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# This file is part of Glances.
#
# Copyright (C) 2014 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Init the Glances software."""
__appname__ = 'glances'
__version__ = '2.1.1'
__author__ = 'Nicolas Hennion <nicolas@nicolargo.com>'
__license__ = 'LGPL'
# Import system lib
import gettext
import locale
import signal
import sys
import platform
# Import psutil
try:
from psutil import __version__ as __psutil_version
except ImportError:
print('psutil library not found. Glances cannot start.')
sys.exit(1)
# Import Glances libs
# Note: others Glances libs will be imported optionally
from glances.core.glances_globals import gettext_domain, locale_dir, logger
from glances.core.glances_main import GlancesMain
# Get PSutil version
psutil_min_version = (2, 0, 0)
psutil_version = tuple([int(num) for num in __psutil_version.split('.')])
# First log with Glances and PSUtil version
logger.info('Start Glances {0}'.format(__version__))
logger.info('{0} {1} and PSutil {2} detected'.format(platform.python_implementation(),
platform.python_version(),
__psutil_version))
# Check PSutil version
if psutil_version < psutil_min_version:
logger.critical('PSutil 2.0 or higher is needed. Glances cannot start.')
sys.exit(1)
def __signal_handler(signal, frame):
"""Callback for CTRL-C."""
end()
def end():
"""Stop Glances."""
if core.is_standalone():
# Stop the standalone (CLI)
standalone.end()
logger.info("Stop Glances (with CTRL-C)")
elif core.is_client():
# Stop the client
client.end()
logger.info("Stop Glances client (with CTRL-C)")
elif core.is_server():
# Stop the server
server.end()
logger.info("Stop Glances server (with CTRL-C)")
elif core.is_webserver():
# Stop the Web server
webserver.end()
logger.info("Stop Glances web server(with CTRL-C)")
# The end...
sys.exit(0)
def main():
"""Main entry point for Glances.
Select the mode (standalone, client or server)
Run it...
"""
# Setup translations
locale.setlocale(locale.LC_ALL, '')
gettext.install(gettext_domain, locale_dir)
# Share global var
global core, standalone, client, server, webserver
# Create the Glances main instance
core = GlancesMain()
# Catch the CTRL-C signal
signal.signal(signal.SIGINT, __signal_handler)
# Glances can be ran in standalone, client or server mode
if core.is_standalone():
logger.info("Start standalone mode")
# Import the Glances standalone module
from glances.core.glances_standalone import GlancesStandalone
# Init the standalone mode
standalone = GlancesStandalone(config=core.get_config(),
args=core.get_args())
# Start the standalone (CLI) loop
standalone.serve_forever()
elif core.is_client():
logger.info("Start client mode")
# Import the Glances client module
from glances.core.glances_client import GlancesClient
# Init the client
client = GlancesClient(config=core.get_config(),
args=core.get_args())
# Test if client and server are in the same major version
if not client.login():
logger.critical(_("The server version is not compatible with the client"))
sys.exit(2)
# Start the client loop
client.serve_forever()
# Shutdown the client
client.close()
elif core.is_server():
logger.info("Start server mode")
# Import the Glances server module
from glances.core.glances_server import GlancesServer
args = core.get_args()
server = GlancesServer(cached_time=core.cached_time,
config=core.get_config(),
args=args)
print(_("Glances server is running on {0}:{1}").format(args.bind_address, args.port))
# Set the server login/password (if -P/--password tag)
if args.password != "":
server.add_user(args.username, args.password)
# Start the server loop
server.serve_forever()
# Shutdown the server?
server.server_close()
elif core.is_webserver():
logger.info("Start web server mode")
# Import the Glances web server module
from glances.core.glances_webserver import GlancesWebServer
# Init the web server mode
webserver = GlancesWebServer(config=core.get_config(),
args=core.get_args())
# Start the web server loop
webserver.serve_forever()
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