Mercurial > hg
comparison hgext/fsmonitor/pywatchman/capabilities.py @ 28432:2377c4ac4eec
fsmonitor: dependencies for new experimental extension
In preparation for the filesystem monitor extension, include the pywatchman
library. The fbmonitor extension relies on this library to communicate with
the Watchman service. The library is BSD licensed and is taken from
https://github.com/facebook/watchman/tree/master/python.
This package has not been updated to mercurial code standards.
author | Martijn Pieters <mjpieters@fb.com> |
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date | Wed, 02 Mar 2016 16:25:12 +0000 |
parents | |
children | 16f4b341288d |
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28431:a7e3b72cf756 | 28432:2377c4ac4eec |
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1 # Copyright 2015 Facebook, Inc. | |
2 # All rights reserved. | |
3 # | |
4 # Redistribution and use in source and binary forms, with or without | |
5 # modification, are permitted provided that the following conditions are met: | |
6 # | |
7 # * Redistributions of source code must retain the above copyright notice, | |
8 # this list of conditions and the following disclaimer. | |
9 # | |
10 # * Redistributions in binary form must reproduce the above copyright notice, | |
11 # this list of conditions and the following disclaimer in the documentation | |
12 # and/or other materials provided with the distribution. | |
13 # | |
14 # * Neither the name Facebook nor the names of its contributors may be used to | |
15 # endorse or promote products derived from this software without specific | |
16 # prior written permission. | |
17 # | |
18 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
19 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
20 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
21 # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | |
22 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
23 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
24 # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
25 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
26 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
28 | |
29 import re | |
30 | |
31 def parse_version(vstr): | |
32 res = 0 | |
33 for n in vstr.split('.'): | |
34 res = res * 1000 | |
35 res = res + int(n) | |
36 return res | |
37 | |
38 cap_versions = { | |
39 "cmd-watch-del-all": "3.1.1", | |
40 "cmd-watch-project": "3.1", | |
41 "relative_root": "3.3", | |
42 "term-dirname": "3.1", | |
43 "term-idirname": "3.1", | |
44 "wildmatch": "3.7", | |
45 } | |
46 | |
47 def check(version, name): | |
48 if name in cap_versions: | |
49 return version >= parse_version(cap_versions[name]) | |
50 return False | |
51 | |
52 def synthesize(vers, opts): | |
53 """ Synthesize a capability enabled version response | |
54 This is a very limited emulation for relatively recent feature sets | |
55 """ | |
56 parsed_version = parse_version(vers['version']) | |
57 vers['capabilities'] = {} | |
58 for name in opts['optional']: | |
59 vers['capabilities'][name] = check(parsed_version, name) | |
60 failed = False | |
61 for name in opts['required']: | |
62 have = check(parsed_version, name) | |
63 vers['capabilities'][name] = have | |
64 if not have: | |
65 vers['error'] = 'client required capability `' + name + \ | |
66 '` is not supported by this server' | |
67 return vers | |
68 | |
69 # no-check-code -- this is a 3rd party library |