glances.GlancesMain.__init__() - Code Metrics - Inspection of "Merge branch 'develop'" - nicolargo/glances - Measure and Improve Code Quality continuously with Scrutinizer

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by Nicolas

created 2016-03-16 16:43 UTC

glances.GlancesMain.init() A

↳ Parent: glances.GlancesMain

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# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2015 Nicolargo <[email protected]>
#
# 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/>.

"""Glances main class."""

import argparse
import os
import sys
import tempfile

from glances.compat import input
from glances.config import Config
from glances.globals import appname, LINUX, WINDOWS, psutil_version, version
from glances.logger import logger


class GlancesMain(object):

    """Main class to manage Glances instance."""

    # Default stats' refresh time is 3 seconds
    refresh_time = 3

    # Set the default cache lifetime to 1 second (only for server)
    # !!! Todo: configuration from the command line
    cached_time = 1
    # By default, Glances is ran in standalone mode (no client/server)
    client_tag = False
    # Server TCP port number (default is 61209)
    server_port = 61209
    # Web Server TCP port number (default is 61208)
    web_server_port = 61208
    # Default username/password for client/server mode
    username = "glances"
    password = ""

    # Exemple of use
    example_of_use = "\
Examples of use:\n\
\n\
Monitor local machine (standalone mode):\n\
  $ glances\n\
\n\
Monitor local machine with the Web interface (Web UI):\n\
  $ glances -w\n\
  Glances web server started on http://0.0.0.0:61208/\n\
\n\
Monitor local machine and export stats to a CSV file (standalone mode):\n\
  $ glances --export-csv\n\
\n\
Monitor local machine and export stats to a InfluxDB server with 5s refresh time (standalone mode):\n\
  $ glances -t 5 --export-influxdb\n\
\n\
Start a Glances server (server mode):\n\
  $ glances -s\n\
\n\
Connect Glances to a Glances server (client mode):\n\
  $ glances -c <ip_server>\n\
\n\
Connect Glances to a Glances server and export stats to a StatsD server (client mode):\n\
  $ glances -c <ip_server> --export-statsd\n\
\n\
Start the client browser (browser mode):\n\
  $ glances --browser\n\
    "

    def __init__(self):
        """Manage the command line arguments."""
        self.args = self.parse_args()

    def init_args(self):
        """Init all the command line arguments."""
        _version = "Glances v" + version + " with psutil v" + psutil_version
        parser = argparse.ArgumentParser(
            prog=appname,
            conflict_handler='resolve',
            formatter_class=argparse.RawDescriptionHelpFormatter,
            epilog=self.example_of_use)
        parser.add_argument(
            '-V', '--version', action='version', version=_version)
        parser.add_argument('-d', '--debug', action='store_true', default=False,
                            dest='debug', help='enable debug mode')
        parser.add_argument('-C', '--config', dest='conf_file',
                            help='path to the configuration file')
        # Enable or disable option on startup
        parser.add_argument('-3', '--disable-quicklook', action='store_true', default=False,
                            dest='disable_quicklook', help='disable quick look module')
        parser.add_argument('-4', '--full-quicklook', action='store_true', default=False,
                            dest='full_quicklook', help='disable all but quick look and load')
        parser.add_argument('--disable-cpu', action='store_true', default=False,
                            dest='disable_cpu', help='disable CPU module')
        parser.add_argument('--disable-mem', action='store_true', default=False,
                            dest='disable_mem', help='disable memory module')
        parser.add_argument('--disable-swap', action='store_true', default=False,
                            dest='disable_swap', help='disable swap module')
        parser.add_argument('--disable-load', action='store_true', default=False,
                            dest='disable_load', help='disable load module')
        parser.add_argument('--disable-network', action='store_true', default=False,
                            dest='disable_network', help='disable network module')
        parser.add_argument('--disable-ip', action='store_true', default=False,
                            dest='disable_ip', help='disable IP module')
        parser.add_argument('--disable-diskio', action='store_true', default=False,
                            dest='disable_diskio', help='disable disk I/O module')
        parser.add_argument('--disable-fs', action='store_true', default=False,
                            dest='disable_fs', help='disable filesystem module')
        parser.add_argument('--disable-folder', action='store_true', default=False,
                            dest='disable_folder', help='disable folder module')
        parser.add_argument('--disable-sensors', action='store_true', default=False,
                            dest='disable_sensors', help='disable sensors module')
        parser.add_argument('--disable-hddtemp', action='store_true', default=False,
                            dest='disable_hddtemp', help='disable HD temperature module')
        parser.add_argument('--disable-raid', action='store_true', default=False,
                            dest='disable_raid', help='disable RAID module')
        parser.add_argument('--disable-docker', action='store_true', default=False,
                            dest='disable_docker', help='disable Docker module')
        parser.add_argument('-5', '--disable-top', action='store_true',
                            default=False, dest='disable_top',
                            help='disable top menu (QL, CPU, MEM, SWAP and LOAD)')
        parser.add_argument('-2', '--disable-left-sidebar', action='store_true',
                            default=False, dest='disable_left_sidebar',
                            help='disable network, disk I/O, FS and sensors modules')
        parser.add_argument('--disable-process', action='store_true', default=False,
                            dest='disable_process', help='disable process module')
        parser.add_argument('--disable-log', action='store_true', default=False,
                            dest='disable_log', help='disable log module')
        parser.add_argument('--disable-bold', action='store_true', default=False,
                            dest='disable_bold', help='disable bold mode in the terminal')
        parser.add_argument('--disable-bg', action='store_true', default=False,
                            dest='disable_bg', help='disable background colors in the terminal')
        parser.add_argument('--enable-process-extended', action='store_true', default=False,
                            dest='enable_process_extended', help='enable extended stats on top process')
        parser.add_argument('--enable-history', action='store_true', default=False,
                            dest='enable_history', help='enable the history mode (matplotlib needed)')
        parser.add_argument('--path-history', default=tempfile.gettempdir(),
                            dest='path_history', help='set the export path for graph history')
        # Export modules feature
        parser.add_argument('--export-csv', default=None,
                            dest='export_csv', help='export stats to a CSV file')
        parser.add_argument('--export-influxdb', action='store_true', default=False,
                            dest='export_influxdb', help='export stats to an InfluxDB server (influxdb lib needed)')
        parser.add_argument('--export-opentsdb', action='store_true', default=False,
                            dest='export_opentsdb', help='export stats to an OpenTSDB server (potsdb lib needed)')
        parser.add_argument('--export-statsd', action='store_true', default=False,
                            dest='export_statsd', help='export stats to a StatsD server (statsd lib needed)')
        parser.add_argument('--export-elasticsearch', action='store_true', default=False,
                            dest='export_elasticsearch', help='export stats to an ElasticSearch server (elasticsearch lib needed)')
        parser.add_argument('--export-rabbitmq', action='store_true', default=False,
                            dest='export_rabbitmq', help='export stats to rabbitmq broker (pika lib needed)')
        # Client/Server option
        parser.add_argument('-c', '--client', dest='client',
                            help='connect to a Glances server by IPv4/IPv6 address or hostname')
        parser.add_argument('-s', '--server', action='store_true', default=False,
                            dest='server', help='run Glances in server mode')
        parser.add_argument('--browser', action='store_true', default=False,
                            dest='browser', help='start the client browser (list of servers)')
        parser.add_argument('--disable-autodiscover', action='store_true', default=False,
                            dest='disable_autodiscover', help='disable autodiscover feature')
        parser.add_argument('-p', '--port', default=None, type=int, dest='port',
                            help='define the client/server TCP port [default: {0}]'.format(self.server_port))
        parser.add_argument('-B', '--bind', default='0.0.0.0', dest='bind_address',
                            help='bind server to the given IPv4/IPv6 address or hostname')
        parser.add_argument('--username', action='store_true', default=False, dest='username_prompt',
                            help='define a client/server username')
        parser.add_argument('--password', action='store_true', default=False, dest='password_prompt',
                            help='define a client/server password')
        parser.add_argument('--snmp-community', default='public', dest='snmp_community',
                            help='SNMP community')
        parser.add_argument('--snmp-port', default=161, type=int,
                            dest='snmp_port', help='SNMP port')
        parser.add_argument('--snmp-version', default='2c', dest='snmp_version',
                            help='SNMP version (1, 2c or 3)')
        parser.add_argument('--snmp-user', default='private', dest='snmp_user',
                            help='SNMP username (only for SNMPv3)')
        parser.add_argument('--snmp-auth', default='password', dest='snmp_auth',
                            help='SNMP authentication key (only for SNMPv3)')
        parser.add_argument('--snmp-force', action='store_true', default=False,
                            dest='snmp_force', help='force SNMP mode')
        parser.add_argument('-t', '--time', default=self.refresh_time, type=float,
                            dest='time', help='set refresh time in seconds [default: {0} sec]'.format(self.refresh_time))
        parser.add_argument('-w', '--webserver', action='store_true', default=False,
                            dest='webserver', help='run Glances in web server mode (bottle needed)')
        # Display options
        parser.add_argument('-q', '--quiet', default=False, action='store_true',
                            dest='quiet', help='do not display the curses interface')
        parser.add_argument('-f', '--process-filter', default=None, type=str,
                            dest='process_filter', help='set the process filter pattern (regular expression)')
        parser.add_argument('--process-short-name', action='store_true', default=False,
                            dest='process_short_name', help='force short name for processes name')
        parser.add_argument('-0', '--disable-irix', action='store_true', default=False,
                            dest='disable_irix', help='Task\'s cpu usage will be divided by the total number of CPUs')
        if not WINDOWS:
            parser.add_argument('--hide-kernel-threads', action='store_true', default=False,
                                dest='no_kernel_threads', help='hide kernel threads in process list')
        if LINUX:
            parser.add_argument('--tree', action='store_true', default=False,
                                dest='process_tree', help='display processes as a tree')
        parser.add_argument('-b', '--byte', action='store_true', default=False,
                            dest='byte', help='display network rate in byte per second')
        parser.add_argument('--diskio-show-ramfs', action='store_true', default=False,
                            dest='diskio_show_ramfs', help='show RAM Fs in the DiskIO plugin')
        parser.add_argument('--diskio-iops', action='store_true', default=False,
                            dest='diskio_iops', help='show IO per second in the DiskIO plugin')
        parser.add_argument('--fahrenheit', action='store_true', default=False,
                            dest='fahrenheit', help='display temperature in Fahrenheit (default is Celsius)')
        parser.add_argument('-1', '--percpu', action='store_true', default=False,
                            dest='percpu', help='start Glances in per CPU mode')
        parser.add_argument('--fs-free-space', action='store_true', default=False,
                            dest='fs_free_space', help='display FS free space instead of used')
        parser.add_argument('--theme-white', action='store_true', default=False,
                            dest='theme_white', help='optimize display colors for white background')

        return parser

    def parse_args(self):
        """Parse command line arguments."""
        args = self.init_args().parse_args()

        # Load the configuration file, if it exists
        self.config = Config(args.conf_file)

        # Debug mode
        if args.debug:
            from logging import DEBUG
            logger.setLevel(DEBUG)

        # Client/server Port
        if args.port is None:
            if args.webserver:
                args.port = self.web_server_port
            else:
                args.port = self.server_port

        # Autodiscover
        if args.disable_autodiscover:
            logger.info("Auto discover mode is disabled")

        # In web server mode
        if args.webserver:
            args.process_short_name = True

        # Server or client login/password
        if args.username_prompt:
            # Every username needs a password
            args.password_prompt = True
            # Prompt username
            if args.server:
                args.username = self.__get_username(description='Define the Glances server username: ')
            elif args.webserver:
                args.username = self.__get_username(description='Define the Glances webserver username: ')
            elif args.client:
                args.username = self.__get_username(description='Enter the Glances server username: ')
        else:
            # Default user name is 'glances'
            args.username = self.username

        if args.password_prompt:
            # Interactive or file password
            if args.server:
                args.password = self.__get_password(
                    description='Define the Glances server password ({0} username): '.format(args.username),
                    confirm=True,
                    username=args.username)
            elif args.webserver:
                args.password = self.__get_password(
                    description='Define the Glances webserver password ({0} username): '.format(args.username),
                    confirm=True,
                    username=args.username)
            elif args.client:
                args.password = self.__get_password(
                    description='Enter the Glances server password ({0} username): '.format(args.username),
                    clear=True,
                    username=args.username)
        else:
            # Default is no password
            args.password = self.password

        # By default help is hidden
        args.help_tag = False

        # Display Rx and Tx, not the sum for the network
        args.network_sum = False
        args.network_cumul = False

        # Manage full quicklook option
        if args.full_quicklook:
            logger.info("Disable QuickLook menu")
            args.disable_quicklook = False
            args.disable_cpu = True
            args.disable_mem = True
            args.disable_swap = True
            args.disable_load = False

        # Manage disable_top option
        if args.disable_top:
            logger.info("Disable top menu")
            args.disable_quicklook = True
            args.disable_cpu = True
            args.disable_mem = True
            args.disable_swap = True
            args.disable_load = True

        # Control parameter and exit if it is not OK
        self.args = args

        # Export is only available in standalone or client mode (issue #614)
        export_tag = args.export_csv or args.export_elasticsearch or args.export_statsd or args.export_influxdb or args.export_opentsdb or args.export_rabbitmq
        if not (self.is_standalone() or self.is_client()) and export_tag:
            logger.critical("Export is only available in standalone or client mode")
            sys.exit(2)

        # Filter is only available in standalone mode
        if args.process_filter is not None and not self.is_standalone():
            logger.critical("Process filter is only available in standalone mode")
            sys.exit(2)

        # Check graph output path
        if args.enable_history and args.path_history is not None:
            if not os.access(args.path_history, os.W_OK):
                logger.critical("History output path {0} do not exist or is not writable".format(args.path_history))
                sys.exit(2)
            logger.debug("History output path is set to {0}".format(args.path_history))

        # Disable HDDTemp if sensors are disabled
        if args.disable_sensors:
            args.disable_hddtemp = True
            logger.debug("Sensors and HDDTemp are disabled")

        return args

    def __get_username(self, description=''):
        """Read a username from the command line.
        """
        return input(description)

    def __get_password(self, description='', confirm=False, clear=False, username='glances'):
        """Read a password from the command line.

        - if confirm = True, with confirmation
        - if clear = True, plain (clear password)
        """
        from glances.password import GlancesPassword
        password = GlancesPassword(username=username)
        return password.get_password(description, confirm, clear)

    def is_standalone(self):
        """Return True if Glances is running in standalone mode."""
        return not self.args.client and not self.args.browser and not self.args.server and not self.args.webserver

    def is_client(self):
        """Return True if Glances is running in client mode."""
        return (self.args.client or self.args.browser) and not self.args.server

    def is_client_browser(self):
        """Return True if Glances is running in client browser mode."""
        return self.args.browser and not self.args.server

    def is_server(self):
        """Return True if Glances is running in server mode."""
        return not self.args.client and self.args.server

    def is_webserver(self):
        """Return True if Glances is running in Web server mode."""
        return not self.args.client and self.args.webserver

    def get_config(self):
        """Return configuration file object."""
        return self.config

    def get_args(self):
        """Return the arguments."""
        return self.args


1			# -- coding: utf-8 --
2			#
3			# This file is part of Glances.
4			#
5			# Copyright (C) 2015 Nicolargo <[email protected]>
6			#
7			# Glances is free software; you can redistribute it and/or modify
8			# it under the terms of the GNU Lesser General Public License as published by
9			# the Free Software Foundation, either version 3 of the License, or
10			# (at your option) any later version.
11			#
12			# Glances is distributed in the hope that it will be useful,
13			# but WITHOUT ANY WARRANTY; without even the implied warranty of
14			# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			# GNU Lesser General Public License for more details.
16			#
17			# You should have received a copy of the GNU Lesser General Public License
18			# along with this program. If not, see <http://www.gnu.org/licenses/>.
19
20			"""Glances main class."""
21
22			import argparse
23			import os
24			import sys
25			import tempfile
26
27			from glances.compat import input
28			from glances.config import Config
29			from glances.globals import appname, LINUX, WINDOWS, psutil_version, version
30			from glances.logger import logger
31
32
33			class GlancesMain(object):
34
35			"""Main class to manage Glances instance."""
36
37			# Default stats' refresh time is 3 seconds
38			refresh_time = 3
39
40			# Set the default cache lifetime to 1 second (only for server)
41			# !!! Todo: configuration from the command line
42			cached_time = 1
43			# By default, Glances is ran in standalone mode (no client/server)
44			client_tag = False
45			# Server TCP port number (default is 61209)
46			server_port = 61209
47			# Web Server TCP port number (default is 61208)
48			web_server_port = 61208
49			# Default username/password for client/server mode
50			username = "glances"
51			password = ""
52
53			# Exemple of use
54			example_of_use = "\
55			Examples of use:\n\
56			\n\
57			Monitor local machine (standalone mode):\n\
58			$ glances\n\
59			\n\
60			Monitor local machine with the Web interface (Web UI):\n\
61			$ glances -w\n\
62			Glances web server started on http://0.0.0.0:61208/\n\
63			\n\
64			Monitor local machine and export stats to a CSV file (standalone mode):\n\
65			$ glances --export-csv\n\
66			\n\
67			Monitor local machine and export stats to a InfluxDB server with 5s refresh time (standalone mode):\n\
68			$ glances -t 5 --export-influxdb\n\
69			\n\
70			Start a Glances server (server mode):\n\
71			$ glances -s\n\
72			\n\
73			Connect Glances to a Glances server (client mode):\n\
74			$ glances -c <ip_server>\n\
75			\n\
76			Connect Glances to a Glances server and export stats to a StatsD server (client mode):\n\
77			$ glances -c <ip_server> --export-statsd\n\
78			\n\
79			Start the client browser (browser mode):\n\
80			$ glances --browser\n\
81			"
82
83			def __init__(self):
84			"""Manage the command line arguments."""
85			self.args = self.parse_args()
86
87			def init_args(self):
88			"""Init all the command line arguments."""
89			_version = "Glances v" + version + " with psutil v" + psutil_version
90			parser = argparse.ArgumentParser(
91			prog=appname,
92			conflict_handler='resolve',
93			formatter_class=argparse.RawDescriptionHelpFormatter,
94			epilog=self.example_of_use)
95			parser.add_argument(
96			'-V', '--version', action='version', version=_version)
97			parser.add_argument('-d', '--debug', action='store_true', default=False,
98			dest='debug', help='enable debug mode')
99			parser.add_argument('-C', '--config', dest='conf_file',
100			help='path to the configuration file')
101			# Enable or disable option on startup
102			parser.add_argument('-3', '--disable-quicklook', action='store_true', default=False,
103			dest='disable_quicklook', help='disable quick look module')
104			parser.add_argument('-4', '--full-quicklook', action='store_true', default=False,
105			dest='full_quicklook', help='disable all but quick look and load')
106			parser.add_argument('--disable-cpu', action='store_true', default=False,
107			dest='disable_cpu', help='disable CPU module')
108			parser.add_argument('--disable-mem', action='store_true', default=False,
109			dest='disable_mem', help='disable memory module')
110			parser.add_argument('--disable-swap', action='store_true', default=False,
111			dest='disable_swap', help='disable swap module')
112			parser.add_argument('--disable-load', action='store_true', default=False,
113			dest='disable_load', help='disable load module')
114			parser.add_argument('--disable-network', action='store_true', default=False,
115			dest='disable_network', help='disable network module')
116			parser.add_argument('--disable-ip', action='store_true', default=False,
117			dest='disable_ip', help='disable IP module')
118			parser.add_argument('--disable-diskio', action='store_true', default=False,
119			dest='disable_diskio', help='disable disk I/O module')
120			parser.add_argument('--disable-fs', action='store_true', default=False,
121			dest='disable_fs', help='disable filesystem module')
122			parser.add_argument('--disable-folder', action='store_true', default=False,
123			dest='disable_folder', help='disable folder module')
124			parser.add_argument('--disable-sensors', action='store_true', default=False,
125			dest='disable_sensors', help='disable sensors module')
126			parser.add_argument('--disable-hddtemp', action='store_true', default=False,
127			dest='disable_hddtemp', help='disable HD temperature module')
128			parser.add_argument('--disable-raid', action='store_true', default=False,
129			dest='disable_raid', help='disable RAID module')
130			parser.add_argument('--disable-docker', action='store_true', default=False,
131			dest='disable_docker', help='disable Docker module')
132			parser.add_argument('-5', '--disable-top', action='store_true',
133			default=False, dest='disable_top',
134			help='disable top menu (QL, CPU, MEM, SWAP and LOAD)')
135			parser.add_argument('-2', '--disable-left-sidebar', action='store_true',
136			default=False, dest='disable_left_sidebar',
137			help='disable network, disk I/O, FS and sensors modules')
138			parser.add_argument('--disable-process', action='store_true', default=False,
139			dest='disable_process', help='disable process module')
140			parser.add_argument('--disable-log', action='store_true', default=False,
141			dest='disable_log', help='disable log module')
142			parser.add_argument('--disable-bold', action='store_true', default=False,
143			dest='disable_bold', help='disable bold mode in the terminal')
144			parser.add_argument('--disable-bg', action='store_true', default=False,
145			dest='disable_bg', help='disable background colors in the terminal')
146			parser.add_argument('--enable-process-extended', action='store_true', default=False,
147			dest='enable_process_extended', help='enable extended stats on top process')
148			parser.add_argument('--enable-history', action='store_true', default=False,
149			dest='enable_history', help='enable the history mode (matplotlib needed)')
150			parser.add_argument('--path-history', default=tempfile.gettempdir(),
151			dest='path_history', help='set the export path for graph history')
152			# Export modules feature
153			parser.add_argument('--export-csv', default=None,
154			dest='export_csv', help='export stats to a CSV file')
155			parser.add_argument('--export-influxdb', action='store_true', default=False,
156			dest='export_influxdb', help='export stats to an InfluxDB server (influxdb lib needed)')
157			parser.add_argument('--export-opentsdb', action='store_true', default=False,
158			dest='export_opentsdb', help='export stats to an OpenTSDB server (potsdb lib needed)')
159			parser.add_argument('--export-statsd', action='store_true', default=False,
160			dest='export_statsd', help='export stats to a StatsD server (statsd lib needed)')
161			parser.add_argument('--export-elasticsearch', action='store_true', default=False,
162			dest='export_elasticsearch', help='export stats to an ElasticSearch server (elasticsearch lib needed)')
163			parser.add_argument('--export-rabbitmq', action='store_true', default=False,
164			dest='export_rabbitmq', help='export stats to rabbitmq broker (pika lib needed)')
165			# Client/Server option
166			parser.add_argument('-c', '--client', dest='client',
167			help='connect to a Glances server by IPv4/IPv6 address or hostname')
168			parser.add_argument('-s', '--server', action='store_true', default=False,
169			dest='server', help='run Glances in server mode')
170			parser.add_argument('--browser', action='store_true', default=False,
171			dest='browser', help='start the client browser (list of servers)')
172			parser.add_argument('--disable-autodiscover', action='store_true', default=False,
173			dest='disable_autodiscover', help='disable autodiscover feature')
174			parser.add_argument('-p', '--port', default=None, type=int, dest='port',
175			help='define the client/server TCP port [default: {0}]'.format(self.server_port))
176			parser.add_argument('-B', '--bind', default='0.0.0.0', dest='bind_address',
177			help='bind server to the given IPv4/IPv6 address or hostname')
178			parser.add_argument('--username', action='store_true', default=False, dest='username_prompt',
179			help='define a client/server username')
180			parser.add_argument('--password', action='store_true', default=False, dest='password_prompt',
181			help='define a client/server password')
182			parser.add_argument('--snmp-community', default='public', dest='snmp_community',
183			help='SNMP community')
184			parser.add_argument('--snmp-port', default=161, type=int,
185			dest='snmp_port', help='SNMP port')
186			parser.add_argument('--snmp-version', default='2c', dest='snmp_version',
187			help='SNMP version (1, 2c or 3)')
188			parser.add_argument('--snmp-user', default='private', dest='snmp_user',
189			help='SNMP username (only for SNMPv3)')
190			parser.add_argument('--snmp-auth', default='password', dest='snmp_auth',
191			help='SNMP authentication key (only for SNMPv3)')
192			parser.add_argument('--snmp-force', action='store_true', default=False,
193			dest='snmp_force', help='force SNMP mode')
194			parser.add_argument('-t', '--time', default=self.refresh_time, type=float,
195			dest='time', help='set refresh time in seconds [default: {0} sec]'.format(self.refresh_time))
196			parser.add_argument('-w', '--webserver', action='store_true', default=False,
197			dest='webserver', help='run Glances in web server mode (bottle needed)')
198			# Display options
199			parser.add_argument('-q', '--quiet', default=False, action='store_true',
200			dest='quiet', help='do not display the curses interface')
201			parser.add_argument('-f', '--process-filter', default=None, type=str,
202			dest='process_filter', help='set the process filter pattern (regular expression)')
203			parser.add_argument('--process-short-name', action='store_true', default=False,
204			dest='process_short_name', help='force short name for processes name')
205			parser.add_argument('-0', '--disable-irix', action='store_true', default=False,
206			dest='disable_irix', help='Task\'s cpu usage will be divided by the total number of CPUs')
207			if not WINDOWS:
208			parser.add_argument('--hide-kernel-threads', action='store_true', default=False,
209			dest='no_kernel_threads', help='hide kernel threads in process list')
210			if LINUX:
211			parser.add_argument('--tree', action='store_true', default=False,
212			dest='process_tree', help='display processes as a tree')
213			parser.add_argument('-b', '--byte', action='store_true', default=False,
214			dest='byte', help='display network rate in byte per second')
215			parser.add_argument('--diskio-show-ramfs', action='store_true', default=False,
216			dest='diskio_show_ramfs', help='show RAM Fs in the DiskIO plugin')
217			parser.add_argument('--diskio-iops', action='store_true', default=False,
218			dest='diskio_iops', help='show IO per second in the DiskIO plugin')
219			parser.add_argument('--fahrenheit', action='store_true', default=False,
220			dest='fahrenheit', help='display temperature in Fahrenheit (default is Celsius)')
221			parser.add_argument('-1', '--percpu', action='store_true', default=False,
222			dest='percpu', help='start Glances in per CPU mode')
223			parser.add_argument('--fs-free-space', action='store_true', default=False,
224			dest='fs_free_space', help='display FS free space instead of used')
225			parser.add_argument('--theme-white', action='store_true', default=False,
226			dest='theme_white', help='optimize display colors for white background')
227
228			return parser
229
230			def parse_args(self):
231			"""Parse command line arguments."""
232			args = self.init_args().parse_args()
233
234			# Load the configuration file, if it exists
235			self.config = Config(args.conf_file)
236
237			# Debug mode
238			if args.debug:
239			from logging import DEBUG
240			logger.setLevel(DEBUG)
241
242			# Client/server Port
243			if args.port is None:
244			if args.webserver:
245			args.port = self.web_server_port
246			else:
247			args.port = self.server_port
248
249			# Autodiscover
250			if args.disable_autodiscover:
251			logger.info("Auto discover mode is disabled")
252
253			# In web server mode
254			if args.webserver:
255			args.process_short_name = True
256
257			# Server or client login/password
258			if args.username_prompt:
259			# Every username needs a password
260			args.password_prompt = True
261			# Prompt username
262			if args.server:
263			args.username = self.__get_username(description='Define the Glances server username: ')
264			elif args.webserver:
265			args.username = self.__get_username(description='Define the Glances webserver username: ')
266			elif args.client:
267			args.username = self.__get_username(description='Enter the Glances server username: ')
268			else:
269			# Default user name is 'glances'
270			args.username = self.username
271
272			if args.password_prompt:
273			# Interactive or file password
274			if args.server:
275			args.password = self.__get_password(
276			description='Define the Glances server password ({0} username): '.format(args.username),
277			confirm=True,
278			username=args.username)
279			elif args.webserver:
280			args.password = self.__get_password(
281			description='Define the Glances webserver password ({0} username): '.format(args.username),
282			confirm=True,
283			username=args.username)
284			elif args.client:
285			args.password = self.__get_password(
286			description='Enter the Glances server password ({0} username): '.format(args.username),
287			clear=True,
288			username=args.username)
289			else:
290			# Default is no password
291			args.password = self.password
292
293			# By default help is hidden
294			args.help_tag = False
295
296			# Display Rx and Tx, not the sum for the network
297			args.network_sum = False
298			args.network_cumul = False
299
300			# Manage full quicklook option
301			if args.full_quicklook:
302			logger.info("Disable QuickLook menu")
303			args.disable_quicklook = False
304			args.disable_cpu = True
305			args.disable_mem = True
306			args.disable_swap = True
307			args.disable_load = False
308
309			# Manage disable_top option
310			if args.disable_top:
311			logger.info("Disable top menu")
312			args.disable_quicklook = True
313			args.disable_cpu = True
314			args.disable_mem = True
315			args.disable_swap = True
316			args.disable_load = True
317
318			# Control parameter and exit if it is not OK
319			self.args = args
320
321			# Export is only available in standalone or client mode (issue #614)
322			export_tag = args.export_csv or args.export_elasticsearch or args.export_statsd or args.export_influxdb or args.export_opentsdb or args.export_rabbitmq
323			if not (self.is_standalone() or self.is_client()) and export_tag:
324			logger.critical("Export is only available in standalone or client mode")
325			sys.exit(2)
326
327			# Filter is only available in standalone mode
328			if args.process_filter is not None and not self.is_standalone():
329			logger.critical("Process filter is only available in standalone mode")
330			sys.exit(2)
331
332			# Check graph output path
333			if args.enable_history and args.path_history is not None:
334			if not os.access(args.path_history, os.W_OK):
335			logger.critical("History output path {0} do not exist or is not writable".format(args.path_history))
336			sys.exit(2)
337			logger.debug("History output path is set to {0}".format(args.path_history))
338
339			# Disable HDDTemp if sensors are disabled
340			if args.disable_sensors:
341			args.disable_hddtemp = True
342			logger.debug("Sensors and HDDTemp are disabled")
343
344			return args
345
346			def __get_username(self, description=''):
347			"""Read a username from the command line.
348			"""
349			return input(description)
350
351			def __get_password(self, description='', confirm=False, clear=False, username='glances'):
352			"""Read a password from the command line.
353
354			- if confirm = True, with confirmation
355			- if clear = True, plain (clear password)
356			"""
357			from glances.password import GlancesPassword
358			password = GlancesPassword(username=username)
359			return password.get_password(description, confirm, clear)
360
361			def is_standalone(self):
362			"""Return True if Glances is running in standalone mode."""
363			return not self.args.client and not self.args.browser and not self.args.server and not self.args.webserver
364
365			def is_client(self):
366			"""Return True if Glances is running in client mode."""
367			return (self.args.client or self.args.browser) and not self.args.server
368
369			def is_client_browser(self):
370			"""Return True if Glances is running in client browser mode."""
371			return self.args.browser and not self.args.server
372
373			def is_server(self):
374			"""Return True if Glances is running in server mode."""
375			return not self.args.client and self.args.server
376
377			def is_webserver(self):
378			"""Return True if Glances is running in Web server mode."""
379			return not self.args.client and self.args.webserver
380
381			def get_config(self):
382			"""Return configuration file object."""
383			return self.config
384
385			def get_args(self):
386			"""Return the arguments."""
387			return self.args
388

nicolargo / glances

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