def _update_component_dependencies_pv(self, name):
# Updates PV with list of configs that depend on a component
configs = []
if name in self._comp_dependencies.keys():
configs = self._comp_dependencies[name]
if name in self._component_metas.keys():
# Check just in case component failed to load
pv_name = BlockserverPVNames.get_dependencies_pv(self._component_metas[name].pv)
self._update_pv_value(pv_name, compress_and_hex(json.dumps(configs)))
def delete(self, delete_list, are_comps=False):
"""Takes a list of configurations and removes them from the file system and any relevant PVs.
Args:
delete_list (list): The configurations/components to delete
are_comps (bool): Whether they are components or not
"""
with self._lock:
# TODO: clean this up?
print_and_log("Deleting: " + ", ".join(list(delete_list)), "INFO")
lower_delete_list = set([x.lower() for x in delete_list])
unable_to_remove_text = "Unable to remove %s from version control: %s"
if not are_comps:
if self.active_config_name.lower() in lower_delete_list:
raise InvalidDeleteException("Cannot delete currently active configuration")
if not lower_delete_list.issubset(self._config_metas.keys()):
raise InvalidDeleteException("Delete list contains unknown configurations")
for config in delete_list:
self._delete_pv(BlockserverPVNames.get_config_details_pv(self._config_metas[config.lower()].pv))
del self._config_metas[config.lower()]
self._remove_config_from_dependencies(config)
try:
self._update_version_control_post_delete(self._conf_path, delete_list) # Git is case sensitive
except Exception as err:
print_and_log(unable_to_remove_text % ("configuration", str(err)), "MINOR")
else:
if DEFAULT_COMPONENT.lower() in lower_delete_list:
raise InvalidDeleteException("Cannot delete default component")
# Only allow comps to be deleted if they appear in no configs
for comp in lower_delete_list:
if self._comp_dependencies.get(comp):
raise InvalidDeleteException(
comp + " is in use in: " + ", ".join(self._comp_dependencies[comp])
)
if not lower_delete_list.issubset(self._component_metas.keys()):
raise InvalidDeleteException("Delete list contains unknown components")
for comp in lower_delete_list:
self._delete_pv(BlockserverPVNames.get_component_details_pv(self._component_metas[comp].pv))
self._delete_pv(BlockserverPVNames.get_dependencies_pv(self._component_metas[comp].pv))
del self._component_metas[comp]
try:
self._update_version_control_post_delete(self._comp_path, delete_list)
except Exception as err:
print_and_log(unable_to_remove_text % ("component", str(err)), "MINOR")
self.update_monitors()
