|
1
|
|
|
# -*- coding: utf-8 -*- |
|
2
|
|
|
# |
|
3
|
|
|
# This file is part of Glances. |
|
4
|
|
|
# |
|
5
|
|
|
# Copyright (C) 2017 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
|
|
|
|
|
21
|
|
|
"""Init the Glances software.""" |
|
22
|
|
|
|
|
23
|
|
|
# Import system libs |
|
24
|
|
|
import locale |
|
25
|
|
|
import platform |
|
26
|
|
|
import signal |
|
27
|
|
|
import sys |
|
28
|
|
|
|
|
29
|
|
|
# Global name |
|
30
|
|
|
__version__ = '2.9.0' |
|
31
|
|
|
__author__ = 'Nicolas Hennion <[email protected]>' |
|
32
|
|
|
__license__ = 'LGPLv3' |
|
33
|
|
|
|
|
34
|
|
|
# Import psutil |
|
35
|
|
|
try: |
|
36
|
|
|
from psutil import __version__ as psutil_version |
|
37
|
|
|
except ImportError: |
|
38
|
|
|
print('PSutil library not found. Glances cannot start.') |
|
39
|
|
|
sys.exit(1) |
|
40
|
|
|
|
|
41
|
|
|
# Import Glances libs |
|
42
|
|
|
# Note: others Glances libs will be imported optionally |
|
43
|
|
|
from glances.logger import logger |
|
44
|
|
|
from glances.main import GlancesMain |
|
45
|
|
|
from glances.globals import WINDOWS |
|
46
|
|
|
|
|
47
|
|
|
# Check locale |
|
48
|
|
|
try: |
|
49
|
|
|
locale.setlocale(locale.LC_ALL, '') |
|
50
|
|
|
except locale.Error: |
|
51
|
|
|
print("Warning: Unable to set locale. Expect encoding problems.") |
|
52
|
|
|
|
|
53
|
|
|
# Check Python version |
|
54
|
|
|
if sys.version_info < (2, 7) or (3, 0) <= sys.version_info < (3, 3): |
|
55
|
|
|
print('Glances requires at least Python 2.7 or 3.3 to run.') |
|
56
|
|
|
sys.exit(1) |
|
57
|
|
|
|
|
58
|
|
|
# Check PSutil version |
|
59
|
|
|
psutil_min_version = (2, 0, 0) |
|
60
|
|
|
psutil_version_info = tuple([int(num) for num in psutil_version.split('.')]) |
|
61
|
|
|
if psutil_version_info < psutil_min_version: |
|
62
|
|
|
print('PSutil 2.0 or higher is needed. Glances cannot start.') |
|
63
|
|
|
sys.exit(1) |
|
64
|
|
|
|
|
65
|
|
|
|
|
66
|
|
|
def __signal_handler(signal, frame): |
|
67
|
|
|
"""Callback for CTRL-C.""" |
|
68
|
|
|
end() |
|
69
|
|
|
|
|
70
|
|
|
|
|
71
|
|
|
def end(): |
|
72
|
|
|
"""Stop Glances.""" |
|
73
|
|
|
mode.end() |
|
74
|
|
|
logger.info("Glances stopped with CTRL-C") |
|
75
|
|
|
|
|
76
|
|
|
# The end... |
|
77
|
|
|
sys.exit(0) |
|
78
|
|
|
|
|
79
|
|
|
|
|
80
|
|
|
def start(config, args): |
|
81
|
|
|
"""Start Glances""" |
|
82
|
|
|
|
|
83
|
|
|
# Load mode |
|
84
|
|
|
global mode |
|
85
|
|
|
|
|
86
|
|
|
if core.is_standalone(): |
|
87
|
|
|
from glances.standalone import GlancesStandalone as GlancesMode |
|
88
|
|
|
elif core.is_client(): |
|
89
|
|
|
if core.is_client_browser(): |
|
90
|
|
|
from glances.client_browser import GlancesClientBrowser as GlancesMode |
|
91
|
|
|
else: |
|
92
|
|
|
from glances.client import GlancesClient as GlancesMode |
|
93
|
|
|
elif core.is_server(): |
|
94
|
|
|
from glances.server import GlancesServer as GlancesMode |
|
95
|
|
|
elif core.is_webserver(): |
|
96
|
|
|
from glances.webserver import GlancesWebServer as GlancesMode |
|
97
|
|
|
|
|
98
|
|
|
# Init the mode |
|
99
|
|
|
logger.info("Start {} mode".format(GlancesMode.__name__)) |
|
100
|
|
|
mode = GlancesMode(config=config, args=args) |
|
101
|
|
|
|
|
102
|
|
|
# Start the main loop |
|
103
|
|
|
mode.serve_forever() |
|
104
|
|
|
|
|
105
|
|
|
# Shutdown |
|
106
|
|
|
mode.end() |
|
107
|
|
|
|
|
108
|
|
|
|
|
109
|
|
|
def main(): |
|
110
|
|
|
"""Main entry point for Glances. |
|
111
|
|
|
|
|
112
|
|
|
Select the mode (standalone, client or server) |
|
113
|
|
|
Run it... |
|
114
|
|
|
""" |
|
115
|
|
|
# Log Glances and PSutil version |
|
116
|
|
|
logger.info('Start Glances {}'.format(__version__)) |
|
117
|
|
|
logger.info('{} {} and PSutil {} detected'.format( |
|
118
|
|
|
platform.python_implementation(), |
|
119
|
|
|
platform.python_version(), |
|
120
|
|
|
psutil_version)) |
|
121
|
|
|
|
|
122
|
|
|
# Share global var |
|
123
|
|
|
global core |
|
124
|
|
|
|
|
125
|
|
|
# Create the Glances main instance |
|
126
|
|
|
core = GlancesMain() |
|
127
|
|
|
config = core.get_config() |
|
128
|
|
|
args = core.get_args() |
|
129
|
|
|
|
|
130
|
|
|
# Catch the CTRL-C signal |
|
131
|
|
|
signal.signal(signal.SIGINT, __signal_handler) |
|
132
|
|
|
|
|
133
|
|
|
# Glances can be ran in standalone, client or server mode |
|
134
|
|
|
start(config=config, args=args) |
|
135
|
|
|
|
nicolargo /
glances
