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annotate contrib/showstack.py @ 50226:f18e4608bb61

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narrow: delegate the dirstate's narrow spec writing to the transaction This make it more transactional and will help us to simplify their backup. The implementation is not great, but it keep the patch simple as this is not the time for a larger refactoring yet.
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Thu, 23 Feb 2023 03:25:44 +0100
parents 6000f5b25c9b
children
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1 # showstack.py - extension to dump a Python stack trace on signal
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2 #
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3 # binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)
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6dae1f31c6c9 showstack: use raw docstring
Gregory Szorc <gregory.szorc@gmail.com>
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4 r"""dump stack trace when receiving SIGQUIT (Ctrl-\) or SIGINFO (Ctrl-T on BSDs)
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c9eb92fb87b7 showstack: add an extension docstring
Boris Feld <boris.feld@octobus.net>
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5 """
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6
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Pulkit Goyal <7895pulkit@gmail.com>
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7 import signal
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8 import sys
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9 import traceback
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12 def sigshow(*args):
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13 sys.stderr.write("\n")
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14 traceback.print_stack(args[1], limit=10, file=sys.stderr)
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15 sys.stderr.write("----\n")
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16
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17
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acf5dbe39478 showstack: also handle SIGALRM
Augie Fackler <augie@google.com>
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18 def sigexit(*args):
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19 sigshow(*args)
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20 print('alarm!')
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21 sys.exit(1)
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22
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Augie Fackler <augie@google.com>
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23
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24 def extsetup(ui):
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25 signal.signal(signal.SIGQUIT, sigshow)
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26 signal.signal(signal.SIGALRM, sigexit)
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27 try:
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28 signal.signal(signal.SIGINFO, sigshow)
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29 except AttributeError:
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30 pass