capabilities.py
74 lines
| 2.6 KiB
| text/x-python
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PythonLexer
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r28432 | # Copyright 2015 Facebook, Inc. | ||
# All rights reserved. | ||||
# | ||||
# Redistribution and use in source and binary forms, with or without | ||||
# modification, are permitted provided that the following conditions are met: | ||||
# | ||||
# * Redistributions of source code must retain the above copyright notice, | ||||
# this list of conditions and the following disclaimer. | ||||
# | ||||
# * Redistributions in binary form must reproduce the above copyright notice, | ||||
# this list of conditions and the following disclaimer in the documentation | ||||
# and/or other materials provided with the distribution. | ||||
# | ||||
# * Neither the name Facebook nor the names of its contributors may be used to | ||||
# endorse or promote products derived from this software without specific | ||||
# prior written permission. | ||||
# | ||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||||
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||||
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||||
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | ||||
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||||
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||||
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||||
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||||
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||||
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||||
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r30656 | # no unicode literals | ||
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r43703 | |||
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r28432 | def parse_version(vstr): | ||
res = 0 | ||||
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r43703 | for n in vstr.split("."): | ||
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r28432 | res = res * 1000 | ||
res = res + int(n) | ||||
return res | ||||
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r43703 | |||
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r28432 | cap_versions = { | ||
"cmd-watch-del-all": "3.1.1", | ||||
"cmd-watch-project": "3.1", | ||||
"relative_root": "3.3", | ||||
"term-dirname": "3.1", | ||||
"term-idirname": "3.1", | ||||
"wildmatch": "3.7", | ||||
} | ||||
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r43703 | |||
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r28432 | def check(version, name): | ||
if name in cap_versions: | ||||
return version >= parse_version(cap_versions[name]) | ||||
return False | ||||
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r43703 | |||
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r28432 | def synthesize(vers, opts): | ||
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r46554 | """Synthesize a capability enabled version response | ||
This is a very limited emulation for relatively recent feature sets | ||||
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r28432 | """ | ||
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r43703 | parsed_version = parse_version(vers["version"]) | ||
vers["capabilities"] = {} | ||||
for name in opts["optional"]: | ||||
vers["capabilities"][name] = check(parsed_version, name) | ||||
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r44436 | |||
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r43703 | for name in opts["required"]: | ||
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r28432 | have = check(parsed_version, name) | ||
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r43703 | vers["capabilities"][name] = have | ||
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r28432 | if not have: | ||
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r43703 | vers["error"] = ( | ||
"client required capability `" | ||||
+ name | ||||
+ "` is not supported by this server" | ||||
) | ||||
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r28432 | return vers | ||