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# Copyright (C) 2006, 2007 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program 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 General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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def _debug(signal_number, interrupted_frame):
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sys.stderr.write("** SIGQUIT received, entering debugger\n"
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"** Type 'c' to continue or 'q' to stop the process\n"
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"** Or SIGQUIT again to quit (and possibly dump core)\n"
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# restore default meaning so that you can kill the process by hitting it
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signal.signal(signal.SIGQUIT, signal.SIG_DFL)
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signal.signal(signal.SIGQUIT, _debug)
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# when sigquit (C-\) is received go into pdb
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if (os.environ.get('BZR_SIGQUIT_PDB', '1') == '0'
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or getattr(signal, 'SIGQUIT', None) is None):
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signal.signal(signal.SIGQUIT, _debug)