Mercurial > hg
annotate contrib/debugcmdserver.py @ 24969:227b9b2a57a3
dockerlib: extract initcontainer() method
This helps contain all the logic around creating containers.
author | Augie Fackler <augie@google.com> |
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date | Wed, 06 May 2015 10:45:51 -0400 |
parents | e34106fa0dc3 |
children | cd03fbd5ab57 |
rev | line source |
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contrib: add a script to help diagnose raw output of the cmdserver
Idan Kamara <idankk86@gmail.com>
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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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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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Idan Kamara <idankk86@gmail.com>
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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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Idan Kamara <idankk86@gmail.com>
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45 finally: |
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46 if log != sys.stderr: |
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47 log.close() |