Mercurial > public > mercurial-scm > hg-stable

annotate contrib/debugcmdserver.py @ 49554:27bff60887fe stable

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perf-unbundle: do a quick and dirty fix to make it run on more commit Without this change, the perf commands fails within the f67741e8264b::18415fc918a1 range (boundary excluded). Check inline comment for details. With this fix, the command is able to run on this range, with a slightly different behavior (as no revset is "uninlined"). However this is still much better than not being able to run anything in this range. Especially because that range do see some performance regression for unbundle.
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Sun, 16 Oct 2022 04:48:21 +0200
parents 6000f5b25c9b
children
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c102b704edb5 global: use python3 in shebangs
Gregory Szorc <gregory.szorc@gmail.com>
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1 #!/usr/bin/env python3
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2 #
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3 # Dumps output generated by Mercurial's command server in a formatted style to a
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4 # given file or stderr if '-' is specified. Output is also written in its raw
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5 # format to stdout.
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6 #
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7 # $ ./hg serve --cmds pipe | ./contrib/debugcmdserver.py -
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8 # o, 52 -> 'capabilities: getencoding runcommand\nencoding: UTF-8'
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9
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10 import struct
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11 import sys
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12
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13 if len(sys.argv) != 2:
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14 print('usage: debugcmdserver.py FILE')
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15 sys.exit(1)
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16
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17 outputfmt = '>cI'
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18 outputfmtsize = struct.calcsize(outputfmt)
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19
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20 if sys.argv[1] == '-':
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21 log = sys.stderr
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22 else:
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23 log = open(sys.argv[1], 'a')
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24
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25
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26 def read(size):
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27 data = sys.stdin.read(size)
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28 if not data:
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29 raise EOFError
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30 sys.stdout.write(data)
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31 sys.stdout.flush()
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32 return data
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33
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34
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35 try:
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36 while True:
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37 header = read(outputfmtsize)
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38 channel, length = struct.unpack(outputfmt, header)
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39 log.write('%s, %-4d' % (channel, length))
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40 if channel in 'IL':
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41 log.write(' -> waiting for input\n')
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42 else:
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43 data = read(length)
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44 log.write(' -> %r\n' % data)
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45 log.flush()
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46 except EOFError:
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47 pass
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48 finally:
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49 if log != sys.stderr:
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50 log.close()