diff options
| -rwxr-xr-x | synapse/app/homeserver.py | 17 | ||||
| -rw-r--r-- | synapse/python_dependencies.py | 17 |
2 files changed, 26 insertions, 8 deletions
diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py index ffc6299146..2a85932b86 100755 --- a/synapse/app/homeserver.py +++ b/synapse/app/homeserver.py @@ -16,10 +16,23 @@ import sys sys.dont_write_bytecode = True -from synapse.python_dependencies import check_requirements, DEPENDENCY_LINKS +from synapse.python_dependencies import ( + check_requirements, DEPENDENCY_LINKS, MissingRequirementError +) if __name__ == '__main__': - check_requirements() + try: + check_requirements() + except MissingRequirementError as e: + message = "\n".join([ + "Missing Requirement: %s" % (e.message,), + "To install run:", + " pip install --upgrade --force \"%s\"" % (e.dependency,), + "", + ]) + sys.stderr.writelines(message) + sys.exit(1) + from synapse.storage.engines import create_engine, IncorrectDatabaseSetup from synapse.storage import ( diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py index 795ef27182..387183b50b 100644 --- a/synapse/python_dependencies.py +++ b/synapse/python_dependencies.py @@ -60,7 +60,10 @@ DEPENDENCY_LINKS = { class MissingRequirementError(Exception): - pass + 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): @@ -88,7 +91,7 @@ def check_requirements(config=None): ) raise MissingRequirementError( "Can't import %r which is part of %r" - % (module_name, dependency) + % (module_name, dependency), module_name, dependency ) version = getattr(module, "__version__", None) file_path = getattr(module, "__file__", None) @@ -101,23 +104,25 @@ def check_requirements(config=None): if version is None: raise MissingRequirementError( "Version of %r isn't set as __version__ of module %r" - % (dependency, module_name) + % (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) + % (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) + % (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) + % (dependency, file_path, version, required_version), + module_name, dependency ) |