annotate contrib/debugcmdserver.py @ 16687:e34106fa0dc3

cleanup: "raise SomeException()" -> "raise SomeException"
author Brodie Rao <brodie@sf.io>
date Sat, 12 May 2012 16:00:58 +0200
parents 1d1f6dff9364
children cd03fbd5ab57
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1d1f6dff9364 contrib: add a script to help diagnose raw output of the cmdserver
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1 #!/usr/bin/env python
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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 sys, struct
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11
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12 if len(sys.argv) != 2:
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13 print 'usage: debugcmdserver.py FILE'
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14 sys.exit(1)
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15
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16 outputfmt = '>cI'
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17 outputfmtsize = struct.calcsize(outputfmt)
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18
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19 if sys.argv[1] == '-':
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20 log = sys.stderr
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21 else:
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22 log = open(sys.argv[1], 'a')
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23
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24 def read(size):
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25 data = sys.stdin.read(size)
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26 if not data:
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e34106fa0dc3 cleanup: "raise SomeException()" -> "raise SomeException"
Brodie Rao <brodie@sf.io>
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27 raise EOFError
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28 sys.stdout.write(data)
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29 sys.stdout.flush()
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30 return data
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31
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32 try:
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33 while True:
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34 header = read(outputfmtsize)
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35 channel, length = struct.unpack(outputfmt, header)
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36 log.write('%s, %-4d' % (channel, length))
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37 if channel in 'IL':
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38 log.write(' -> waiting for input\n')
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39 else:
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40 data = read(length)
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41 log.write(' -> %r\n' % data)
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42 log.flush()
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43 except EOFError:
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44 pass
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45 finally:
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46 if log != sys.stderr:
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47 log.close()