Mercurial > hg
annotate contrib/showstack.py @ 42273:651f325e4fdd
remotefilelog: move most functions in onetimeclientsetup() to top level
This is how most extensions seem to do it. It makes sure we don't
accidentally depend on the captured ui instance.
Differential Revision: https://phab.mercurial-scm.org/D6333
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Wed, 01 May 2019 15:24:16 -0700 |
parents | 6dae1f31c6c9 |
children | 2372284d9457 |
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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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4 r"""dump stack trace when receiving SIGQUIT (Ctrl-\) or SIGINFO (Ctrl-T on BSDs) |
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5 """ |
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6 |
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7 from __future__ import absolute_import, print_function |
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8 import signal |
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9 import sys |
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10 import traceback |
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11 |
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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 def sigexit(*args): |
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18 sigshow(*args) |
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19 print('alarm!') |
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20 sys.exit(1) |
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21 |
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22 def extsetup(ui): |
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23 signal.signal(signal.SIGQUIT, sigshow) |
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24 signal.signal(signal.SIGALRM, sigexit) |
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25 try: |
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26 signal.signal(signal.SIGINFO, sigshow) |
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27 except AttributeError: |
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28 pass |