ayon-core/pype/modules_manager.py
2020-09-22 14:06:43 +02:00

102 lines
3.2 KiB
Python

import os
import inspect
import pype.modules
from pype.modules import PypeModule
from pype.settings import system_settings
from pype.api import Logger
class PypeModuleManager:
skip_module_names = ("__pycache__", )
def __init__(self):
self.log = Logger().get_logger(
"{}.{}".format(__name__, self.__class__.__name__)
)
self.pype_modules = self.find_pype_modules()
def modules_environments(self):
environments = {}
for pype_module in self.pype_modules.values():
environments.update(pype_module.startup_environments())
return environments
def find_pype_modules(self):
settings = system_settings()
modules = []
dirpath = os.path.dirname(pype.modules.__file__)
for module_name in os.listdir(dirpath):
# Check if path lead to a folder
full_path = os.path.join(dirpath, module_name)
if not os.path.isdir(full_path):
continue
# Skip known invalid names
if module_name in self.skip_module_names:
continue
import_name = "pype.modules.{}".format(module_name)
try:
modules.append(
__import__(import_name, fromlist=[""])
)
except Exception:
self.log.warning(
"Couldn't import {}".format(import_name), exc_info=True
)
pype_module_classes = []
for module in modules:
try:
pype_module_classes.extend(
self._classes_from_module(PypeModule, module)
)
except Exception:
self.log.warning(
"Couldn't import {}".format(import_name), exc_info=True
)
pype_modules = {}
for pype_module_class in pype_module_classes:
try:
pype_module = pype_module_class(settings)
if pype_module.enabled:
pype_modules[pype_module.id] = pype_module
except Exception:
self.log.warning(
"Couldn't create instance of {}".format(
pype_module_class.__class__.__name__
),
exc_info=True
)
return pype_modules
def _classes_from_module(self, superclass, module):
classes = list()
def recursive_bases(klass):
output = []
output.extend(klass.__bases__)
for base in klass.__bases__:
output.extend(recursive_bases(base))
return output
for name in dir(module):
# It could be anything at this point
obj = getattr(module, name)
if not inspect.isclass(obj) or not len(obj.__bases__) > 0:
continue
# Use string comparison rather than `issubclass`
# in order to support reloading of this module.
bases = recursive_bases(obj)
if not any(base.__name__ == superclass.__name__ for base in bases):
continue
classes.append(obj)
return classes