Mercurial > hg
annotate contrib/debugcmdserver.py @ 17946:1e13b1184292
diff: move index header generation to patch
In an upcoming patch, we will add index information to all git diffs, not
only binary diffs, so this code needs to be moved to a more appropriate
place.
Also, since this information is used for patch headers, it makes more
sense to be in the patch module, along with other patch-related metadata.
author | Guillermo Pérez <bisho@fb.com> |
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date | Thu, 15 Nov 2012 15:16:41 -0800 |
parents | e34106fa0dc3 |
children | cd03fbd5ab57 |
rev | line source |
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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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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() |