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# Copyright 2015, 2016 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from distutils.version import LooseVersion
logger = logging.getLogger(__name__)
REQUIREMENTS = {
"frozendict>=0.4": ["frozendict"],
"unpaddedbase64>=1.1.0": ["unpaddedbase64>=1.1.0"],
"canonicaljson>=1.0.0": ["canonicaljson>=1.0.0"],
"signedjson>=1.0.0": ["signedjson>=1.0.0"],
"pynacl==0.3.0": ["nacl==0.3.0", "nacl.bindings"],
"service_identity>=1.0.0": ["service_identity>=1.0.0"],
"Twisted>=15.1.0": ["twisted>=15.1.0"],
"pyopenssl>=0.14": ["OpenSSL>=0.14"],
"pyyaml": ["yaml"],
"pyasn1": ["pyasn1"],
"daemonize": ["daemonize"],
"py-bcrypt": ["bcrypt"],
"pillow": ["PIL"],
"pydenticon": ["pydenticon"],
"ujson": ["ujson"],
"blist": ["blist"],
"pysaml2>=3.0.0,<4.0.0": ["saml2>=3.0.0,<4.0.0"],
"pymacaroons-pynacl": ["pymacaroons"],
"pyjwt": ["jwt"],
}
CONDITIONAL_REQUIREMENTS = {
"web_client": {
"matrix_angular_sdk>=0.6.8": ["syweb>=0.6.8"],
},
"preview_url": {
"lxml>=3.6.0": ["lxml"],
"netaddr>=0.7.18": ["netaddr"],
},
}
def requirements(config=None, include_conditional=False):
reqs = REQUIREMENTS.copy()
if include_conditional:
for _, req in CONDITIONAL_REQUIREMENTS.items():
reqs.update(req)
return reqs
def github_link(project, version, egg):
return "https://github.com/%s/tarball/%s/#egg=%s" % (project, version, egg)
DEPENDENCY_LINKS = {
}
class MissingRequirementError(Exception):
def __init__(self, message, module_name, dependency):
super(MissingRequirementError, self).__init__(message)
self.module_name = module_name
self.dependency = dependency
def check_requirements(config=None):
"""Checks that all the modules needed by synapse have been correctly
installed and are at the correct version"""
for dependency, module_requirements in (
requirements(config, include_conditional=False).items()):
for module_requirement in module_requirements:
if ">=" in module_requirement:
module_name, required_version = module_requirement.split(">=")
version_test = ">="
elif "==" in module_requirement:
module_name, required_version = module_requirement.split("==")
version_test = "=="
else:
module_name = module_requirement
version_test = None
try:
module = __import__(module_name)
except ImportError:
logging.exception(
"Can't import %r which is part of %r",
module_name, dependency
)
raise MissingRequirementError(
"Can't import %r which is part of %r"
% (module_name, dependency), module_name, dependency
)
version = getattr(module, "__version__", None)
file_path = getattr(module, "__file__", None)
logger.info(
"Using %r version %r from %r to satisfy %r",
module_name, version, file_path, dependency
)
if version_test == ">=":
if version is None:
raise MissingRequirementError(
"Version of %r isn't set as __version__ of module %r"
% (dependency, module_name), module_name, dependency
)
if LooseVersion(version) < LooseVersion(required_version):
raise MissingRequirementError(
"Version of %r in %r is too old. %r < %r"
% (dependency, file_path, version, required_version),
module_name, dependency
)
elif version_test == "==":
if version is None:
raise MissingRequirementError(
"Version of %r isn't set as __version__ of module %r"
% (dependency, module_name), module_name, dependency
)
if LooseVersion(version) != LooseVersion(required_version):
raise MissingRequirementError(
"Unexpected version of %r in %r. %r != %r"
% (dependency, file_path, version, required_version),
module_name, dependency
)
def list_requirements():
result = []
linked = []
for link in DEPENDENCY_LINKS.values():
egg = link.split("#egg=")[1]
linked.append(egg.split('-')[0])
result.append(link)
for requirement in requirements(include_conditional=True):
is_linked = False
for link in linked:
if requirement.replace('-', '_').startswith(link):
is_linked = True
if not is_linked:
result.append(requirement)
return result
if __name__ == "__main__":
import sys
sys.stdout.writelines(req + "\n" for req in list_requirements())
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