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Config for wizard is not like all other our configs,
it can be read and modified in multiple processes at the
same time, so we should handle that situations correctly.
Thus, we must set up exclusive locks for reading
and writing and use contextmanager to load config on start and save
right after leaving scope and in case of any errors.
You can use config like this:
with config.acquire_config_access() as config:
options = config.get_options(module)
or
with config.acquire_config_access() as config:
options = config.set_state(module, 'failed')
N)contextmanager)Optional)Config)MODULES_STATUS_FILE_LOCK)UnableAcquireLockError )BaseConfigError NoSuchModuleMalformedConfigError)r r
r acquire_config_accessc # K t t V d S t t dd } n7# t t f$ r#}t t
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error_message)
_configopenr IOErrorOSErrorr strfcntlflockLOCK_EXr saveLOCK_UN) lock_filees py/clwizard/config/__init__.pyr r F s^
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contextlibr typingr clwizard.config.configr clwizard.constantsr clwizard.config.exceptionsr
exceptionsr r
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