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Load as many components in parallel as possible (#20806)

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* Load as many components in parallel as possible

* Lint
This commit is contained in:
Paulus Schoutsen
2019-02-07 13:56:40 -08:00
committed by Pascal Vizeli
parent f3b20d138e
commit a9672b0d52
6 changed files with 92 additions and 227 deletions
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18
homeassistant/setup.py
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@@ -106,12 +106,18 @@ async def _async_setup_component(hass: core.HomeAssistant,
log_error("Component not found.", False)
return False
# Validate no circular dependencies
components = loader.load_order_component(hass, domain)
# OrderedSet is empty if component or dependencies could not be resolved
if not components:
log_error("Unable to resolve component or dependencies.")
# Validate all dependencies exist and there are no circular dependencies
try:
loader.component_dependencies(hass, domain)
except loader.ComponentNotFound as err:
_LOGGER.error(
"Not setting up %s because we are unable to resolve "
"(sub)dependency %s", domain, err.domain)
return False
except loader.CircularDependency as err:
_LOGGER.error(
"Not setting up %s because it contains a circular dependency: "
"%s -> %s", domain, err.from_domain, err.to_domain)
return False
processed_config = \