Mercurial > hg
annotate contrib/showstack.py @ 31499:31d2ddfd338c
color: sync text attributes and buffered text output on Windows (issue5508)
I originally noticed that log output wasn't being colored after 3a4c0905f357,
but there were other complications too. With a bunch of untracked files, only
the first 1K of characters were colored pink, and the rest were normal white. A
single modified file at the top would also be colored pink.
Line buffering and full buffering are treated as the same thing in Windows [1],
meaning the stream is either buffered or not. I can't find any explicit
documentation to say stdout is unbuffered by default when attached to a console
(but some internet postings indicated that is the case[2]). Therefore, it seems
that explicit flushes are better than just not reopening stdout.
NB: pager is now on by default, and needs to be disabled to see any color on
Windows.
[1] https://msdn.microsoft.com/en-us/library/86cebhfs(v=vs.140).aspx
[2] https://sourceforge.net/p/mingw/mailman/message/27121137/
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sun, 19 Mar 2017 12:44:45 -0400 |
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 |