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# 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.
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
# no unicode literals
import re
def parse_version(vstr):
res = 0
for n in vstr.split('.'):
res = res * 1000
res = res + int(n)
return res
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",
}
def check(version, name):
if name in cap_versions:
return version >= parse_version(cap_versions[name])
return False
def synthesize(vers, opts):
""" Synthesize a capability enabled version response
This is a very limited emulation for relatively recent feature sets
"""
parsed_version = parse_version(vers['version'])
vers['capabilities'] = {}
for name in opts['optional']:
vers['capabilities'][name] = check(parsed_version, name)
failed = False
for name in opts['required']:
have = check(parsed_version, name)
vers['capabilities'][name] = have
if not have:
vers['error'] = 'client required capability `' + name + \
'` is not supported by this server'
return vers
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