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# Copyright 2014-2015 Canonical Limited.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Remote Python Debugger (pdb wrapper)."""
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__author__ = "Bertrand Janin <b@janin.com>"
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def __init__(self, addr="127.0.0.1", port=4444):
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"""Initialize the socket and initialize pdb."""
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# Backup stdin and stdout before replacing them by the socket handle
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self.old_stdout = sys.stdout
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self.old_stdin = sys.stdin
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# Open a 'reusable' socket to let the webapp reload on the same port
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self.skt = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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self.skt.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
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self.skt.bind((addr, port))
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(clientsocket, address) = self.skt.accept()
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handle = clientsocket.makefile('rw')
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pdb.Pdb.__init__(self, completekey='tab', stdin=handle, stdout=handle)
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sys.stdout = sys.stdin = handle
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"""Revert stdin and stdout, close the socket."""
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sys.stdout = self.old_stdout
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sys.stdin = self.old_stdin
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def do_continue(self, arg):
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"""Stop all operation on ``continue``."""
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do_EOF = do_quit = do_exit = do_c = do_cont = do_continue
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hooks/charmhelpers/fetch/python/rpdb.py
