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#!/usr/bin/env python
# coding: utf-8
# Copyright 2014-2015 Canonical Limited.
#
# This file is part of charm-helpers.
#
# charm-helpers is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3 as
# published by the Free Software Foundation.
#
# charm-helpers 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 charm-helpers. If not, see <http://www.gnu.org/licenses/>.
from __future__ import print_function
import atexit
import sys
from charmhelpers.contrib.python.rpdb import Rpdb
from charmhelpers.core.hookenv import (
open_port,
close_port,
ERROR,
log
)
__author__ = "Jorge Niedbalski <jorge.niedbalski@canonical.com>"
DEFAULT_ADDR = "0.0.0.0"
DEFAULT_PORT = 4444
def _error(message):
log(message, level=ERROR)
def set_trace(addr=DEFAULT_ADDR, port=DEFAULT_PORT):
"""
Set a trace point using the remote debugger
"""
atexit.register(close_port, port)
try:
log("Starting a remote python debugger session on %s:%s" % (addr,
port))
open_port(port)
debugger = Rpdb(addr=addr, port=port)
debugger.set_trace(sys._getframe().f_back)
except:
_error("Cannot start a remote debug session on %s:%s" % (addr,
port))
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