annotate contrib/debugcmdserver.py @ 48393:1a8a70b4b0ad

dirstate: cleanup remaining of "now" during write Since the whole `need_delay` have been removed, we no longer need this. Differential Revision: https://phab.mercurial-scm.org/D11797
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Fri, 19 Nov 2021 03:03:01 +0100
parents c102b704edb5
children 6000f5b25c9b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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c102b704edb5 global: use python3 in shebangs
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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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cd03fbd5ab57 debugcmdserver: use absolute_import and print_function
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10 from __future__ import absolute_import, print_function
cd03fbd5ab57 debugcmdserver: use absolute_import and print_function
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11 import struct
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12 import sys
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13
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14 if len(sys.argv) != 2:
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15 print('usage: debugcmdserver.py FILE')
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16 sys.exit(1)
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17
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18 outputfmt = '>cI'
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19 outputfmtsize = struct.calcsize(outputfmt)
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20
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21 if sys.argv[1] == '-':
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22 log = sys.stderr
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23 else:
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24 log = open(sys.argv[1], 'a')
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25
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26
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27 def read(size):
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28 data = sys.stdin.read(size)
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29 if not data:
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30 raise EOFError
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31 sys.stdout.write(data)
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32 sys.stdout.flush()
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33 return data
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34
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35
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36 try:
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37 while True:
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38 header = read(outputfmtsize)
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39 channel, length = struct.unpack(outputfmt, header)
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40 log.write('%s, %-4d' % (channel, length))
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41 if channel in 'IL':
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42 log.write(' -> waiting for input\n')
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43 else:
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44 data = read(length)
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45 log.write(' -> %r\n' % data)
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46 log.flush()
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47 except EOFError:
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48 pass
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49 finally:
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50 if log != sys.stderr:
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51 log.close()