81 lines
3.1 KiB
Python
81 lines
3.1 KiB
Python
import logging
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from distutils.version import LooseVersion
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logger = logging.getLogger(__name__)
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REQUIREMENTS = {
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"syutil==0.0.2": ["syutil"],
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"matrix_angular_sdk==0.6.0": ["syweb>=0.6.0"],
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"Twisted>=14.0.0": ["twisted>=14.0.0"],
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"service_identity>=1.0.0": ["service_identity>=1.0.0"],
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"pyopenssl>=0.14": ["OpenSSL>=0.14"],
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"pyyaml": ["yaml"],
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"pyasn1": ["pyasn1"],
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"pynacl": ["nacl"],
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"daemonize": ["daemonize"],
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"py-bcrypt": ["bcrypt"],
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"frozendict>=0.4": ["frozendict"],
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"pillow": ["PIL"],
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}
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class MissingRequirementError(Exception):
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pass
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def check_requirements():
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"""Checks that all the modules needed by synapse have been correctly
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installed and are at the correct version"""
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for dependency, module_requirements in REQUIREMENTS.items():
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for module_requirement in module_requirements:
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if ">=" in module_requirement:
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module_name, required_version = module_requirement.split(">=")
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version_test = ">="
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elif "==" in module_requirement:
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module_name, required_version = module_requirement.split("==")
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version_test = "=="
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else:
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module_name = module_requirement
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version_test = None
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try:
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module = __import__(module_name)
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except ImportError:
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logging.exception(
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"Can't import %r which is part of %r",
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module_name, dependency
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)
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raise MissingRequirementError(
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"Can't import %r which is part of %r"
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% (module_name, dependency)
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)
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version = getattr(module, "__version__", None)
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file_path = getattr(module, "__file__", None)
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logger.info(
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"Using %r version %r from %r to satisfy %r",
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module_name, version, file_path, dependency
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)
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if version_test == ">=":
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if version is None:
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raise MissingRequirementError(
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"Version of %r isn't set as __version__ of module %r"
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% (dependency, module_name)
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)
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if LooseVersion(version) < LooseVersion(required_version):
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raise MissingRequirementError(
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"Version of %r in %r is too old. %r < %r"
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% (dependency, file_path, version, required_version)
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)
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elif version_test == "==":
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if version is None:
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raise MissingRequirementError(
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"Version of %r isn't set as __version__ of module %r"
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% (dependency, module_name)
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)
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if LooseVersion(version) != LooseVersion(required_version):
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raise MissingRequirementError(
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"Unexpected version of %r in %r. %r != %r"
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% (dependency, file_path, version, required_version)
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)
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