Mercurial > hg
annotate contrib/showstack.py @ 35448:8251c4c4abdc
debuginstall: add a line about re2 availability
Using re2 engine can massively speed up regexp. We make it simpler to check if
it is available in a given install.
author | Boris Feld <boris.feld@octobus.net> |
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date | Mon, 27 Nov 2017 18:48:36 -0500 |
parents | f2fe7b199bb4 |
children | c9eb92fb87b7 |
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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 |
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5 from __future__ import absolute_import |
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6 import signal |
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7 import sys |
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8 import traceback |
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9 |
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10 def sigshow(*args): |
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11 sys.stderr.write("\n") |
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12 traceback.print_stack(args[1], limit=10, file=sys.stderr) |
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13 sys.stderr.write("----\n") |
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14 |
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15 def extsetup(ui): |
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16 signal.signal(signal.SIGQUIT, sigshow) |
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17 try: |
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18 signal.signal(signal.SIGINFO, sigshow) |
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19 except AttributeError: |
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20 pass |