import logging from distutils.version import LooseVersion logger = logging.getLogger(__name__) REQUIREMENTS = { "syutil>=0.0.3": ["syutil"], "Twisted==14.0.2": ["twisted==14.0.2"], "service_identity>=1.0.0": ["service_identity>=1.0.0"], "pyopenssl>=0.14": ["OpenSSL>=0.14"], "pyyaml": ["yaml"], "pyasn1": ["pyasn1"], "pynacl": ["nacl"], "daemonize": ["daemonize"], "py-bcrypt": ["bcrypt"], "frozendict>=0.4": ["frozendict"], "pillow": ["PIL"], "pydenticon": ["pydenticon"], } CONDITIONAL_REQUIREMENTS = { "web_client": { "matrix_angular_sdk>=0.6.5": ["syweb>=0.6.5"], } } def requirements(config=None, include_conditional=False): reqs = REQUIREMENTS.copy() for key, req in CONDITIONAL_REQUIREMENTS.items(): if (config and getattr(config, key)) or include_conditional: 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 = [ github_link( project="pyca/pynacl", version="d4d3175589b892f6ea7c22f466e0e223853516fa", egg="pynacl-0.3.0", ), github_link( project="matrix-org/syutil", version="v0.0.3", egg="syutil-0.0.3", ), github_link( project="matrix-org/matrix-angular-sdk", version="v0.6.5", egg="matrix_angular_sdk-0.6.5", ), ] class MissingRequirementError(Exception): pass 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) ) 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) ) if LooseVersion(version) < LooseVersion(required_version): raise MissingRequirementError( "Version of %r in %r is too old. %r < %r" % (dependency, file_path, version, required_version) ) elif version_test == "==": if version is None: raise MissingRequirementError( "Version of %r isn't set as __version__ of module %r" % (dependency, module_name) ) if LooseVersion(version) != LooseVersion(required_version): raise MissingRequirementError( "Unexpected version of %r in %r. %r != %r" % (dependency, file_path, version, required_version) ) def list_requirements(): result = [] linked = [] for link in DEPENDENCY_LINKS: 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())