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First sprint for the outdated function
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Nicolargo
parent
fd83a9f92a
commit
2aab7db010
@ -71,6 +71,10 @@ LOGGING_CFG = {
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'handlers': ['file'],
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'level': 'INFO'
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},
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'requests': {
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'handlers': ['file', 'console'],
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'level': 'ERROR',
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},
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'elasticsearch': {
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'handlers': ['file', 'console'],
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'level': 'ERROR',
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159
glances/outdated.py
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159
glances/outdated.py
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@ -0,0 +1,159 @@
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# -*- coding: utf-8 -*-
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#
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# This file is part of Glances.
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#
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# Copyright (C) 2016 Nicolargo <nicolas@nicolargo.com>
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#
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# Glances is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Glances is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""Manage Glances update."""
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from datetime import datetime, timedelta
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from distutils.version import LooseVersion
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import threading
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import json
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import pickle
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import os
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try:
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import requests
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except ImportError:
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outdated_tag = False
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else:
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outdated_tag = True
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from glances import __version__, __appname__
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from glances.globals import BSD, LINUX, OSX, WINDOWS
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from glances.logger import logger
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class Outdated(object):
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"""
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This class aims at providing methods to warn the user when a new Glances
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version is available on the Pypi repository (https://pypi.python.org/pypi/Glances/).
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"""
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PYPI_API_URL = 'https://pypi.python.org/pypi/Glances/json'
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max_refresh_date = timedelta(days=7)
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def __init__(self, args, config):
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"""Init the Outdated class"""
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self.args = args
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self.config = config
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# Set default value...
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self.data = {
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'installed_version': __version__,
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'latest_version': '0.0',
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'refresh_date': None
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}
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# ... and update
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self.get_pypi_version()
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def installed_version(self):
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return self.data['installed_version']
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def latest_version(self):
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return self.data['latest_version']
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def refresh_date(self):
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return self.data['refresh_date']
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def get_pypi_version(self):
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"""Wrapper to get the latest Pypi version (async)
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The data are stored in a cached file
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Only update online once a week
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"""
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# If the cached file exist, read-it
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cached_data = self._load_cache()
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if outdated_tag and cached_data == {}:
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# Update needed
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# Update and save the cache
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thread = threading.Thread(target=self._update_pypi_version)
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thread.start()
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else:
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# Update not needed
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self.data['latest_version'] = cached_data['latest_version']
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logger.debug("Get the Glances version from the cache file")
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def _load_cache(self):
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"""Load cache file and return cached data"""
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# If the cached file exist, read-it
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cached_data = {}
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try:
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with open(os.path.join(self._cache_path(), 'glances-version.db'), 'rb') as f:
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cached_data = pickle.load(f)
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except IOError as e:
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logger.debug("Can not read the version cache file ({0})".format(e))
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else:
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logger.debug("Read the version cache file")
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if cached_data['installed_version'] != self.installed_version() or \
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datetime.now() - cached_data['refresh_date'] > self.max_refresh_date:
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# Reset the cache if:
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# - the installed version is different
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# - the refresh_date is > max_refresh_date
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cached_data = {}
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return cached_data
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def _save_cache(self):
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"""Save data to a file"""
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# If the cached file exist, read-it
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try:
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with open(os.path.join(self._cache_path(), 'glances-version.db'), 'wb') as f:
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pickle.dump(self.data, f)
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except IOError:
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return False
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return True
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def _cache_path(self):
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"""Return the cached file path"""
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if LINUX or BSD:
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return os.path.join(os.environ.get('XDG_CONFIG_HOME') or
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os.path.expanduser('~/.config'),
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__appname__)
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elif OSX:
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return os.path.join(os.path.expanduser('~/Library/Application Support/'),
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__appname__)
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elif WINDOWS:
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return os.path.join(os.environ.get('APPDATA'), __appname__)
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def _update_pypi_version(self):
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"""Get the latest Pypi version (as a string) via the Restful JSON API"""
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# Get the Nginx status
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logger.debug("Get latest Glances version from the Pypi Restfull API ({0})".format(self.PYPI_API_URL))
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try:
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res = requests.get(self.PYPI_API_URL)
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except Exception as e:
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logger.debug("Can not get the Glances version from the Pypi Restfull API ({0})".format(e))
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else:
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if res.ok:
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# Update data
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self.data['latest_version'] = json.loads(res.text)['info']['version']
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self.data['refresh_date'] = datetime.now()
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# Save result to the cache file
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self._save_cache()
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logger.debug("Save Glances version to the cache file")
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else:
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logger.debug("Can not get the Glances version from the Pypi Restfull API ({0})".format(res.reason))
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return self.data
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def is_outdated(self):
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"""Return True if a new version is available"""
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if not outdated_tag:
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logger.debug("Python Request lib is not installed. Can not get last Glances version on Pypi.")
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return False
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logger.debug("Check Glances version (installed: {0} / latest: {1})".format(self.installed_version(), self.latest_version()))
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return LooseVersion(self.latest_version()) > LooseVersion(self.installed_version())
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@ -26,6 +26,7 @@ from glances.logger import logger
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from glances.processes import glances_processes
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from glances.stats import GlancesStats
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from glances.outputs.glances_curses import GlancesCursesStandalone
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from glances.outdated import Outdated
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class GlancesStandalone(object):
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@ -77,6 +78,9 @@ class GlancesStandalone(object):
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# Init screen
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self.screen = GlancesCursesStandalone(config=config, args=args)
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# Check the latest Glances version
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self.outdated = Outdated(config=config, args=args)
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@property
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def quiet(self):
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return self._quiet
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@ -115,3 +119,8 @@ class GlancesStandalone(object):
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# Exit from export modules
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self.stats.end()
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# Check Glances version versus Pypi one
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if self.outdated.is_outdated():
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print("You are using Glances version {0}, however version {1} is available.".format(self.outdated.installed_version(), self.outdated.latest_version()))
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print("You should consider upgrading using: pip install --upgrade glances")
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