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#-*- coding: utf-8 -*-
# helper.py
# Defines HelperController
#
# Copyright (C) 2016 Jakub Kadlcik
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties 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, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
#
from psutil import AccessDenied
from tracer.resources.system import System
from tracer.resources.memory import dump_memory
from tracer.views.helper import HelperView
from tracer.resources.lang import _
from tracer.resources.tracer import Tracer
from tracer.resources.applications import Applications
from tracer.resources.rules import Rules
class HelperController(object):
args = None
packages = None
def __init__(self, args, packages=None):
self.args = args
self.packages = packages
def render(self):
for app_name in self.args.helper:
self.print_helper(Applications.find(app_name), self.args)
if app_name != self.args.helper[-1]:
print("")
def print_helper(self, app, args):
if app.instances:
manager = System.package_manager()
package = manager.provided_by(app)
if package:
package.load_info(System.package_manager())
tr = Tracer(System.package_manager(), Rules, Applications)
tr.now = self.args.now
if self.packages:
tr.specified_packages = self.packages
try: affected_by = tr.trace_application(app)
except AccessDenied: affected_by = _("You don't have enough permissions")
affects = self._affects(app, affected_by)
view = HelperView()
view.assign("args", args)
view.assign("processes", app.instances)
view.assign("application", app)
view.assign("package", package)
view.assign("affected_by", affected_by)
view.assign("affects", affects)
view.render()
else:
print(_("Application called {0} is not running").format(app.name))
def _affects(self, app, affected_by):
if not affected_by:
return None
last = affected_by[-1].name()
if last == app.name:
return None
if last not in [p.parent().name() for p in app.instances]:
return None
return last
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