def test_strip_path_prefix(self, path, prefix, result):
original = YAMLPath(path)
remove = YAMLPath(prefix) if prefix is not None else None
compare = YAMLPath(result)
stripped = YAMLPath.strip_path_prefix(original, remove)
assert compare == stripped
def _prepare_user_rules(self, proc: Processor, merge_path: YAMLPath,
section: str, collector: dict) -> None:
"""
Identify DOM nodes matching user-defined merge rules.
Parameters:
1. proc (Processor) Reference to the DOM Processor.
2. merge_path (YAMLPath) User-specified path within the DOM at which
merging will take place.
3. section (str) User-configuration file section defining the merge
rules to apply.
4. collector (dict) Storage collector for matching nodes.
Returns: N/A
"""
if self.config is None or not section in self.config:
self.log.warning(
"User-specified configuration file has no {} section.".format(
section))
return
for rule_key in self.config[section]:
rule_value = self.config[section][rule_key]
if "=" in rule_value:
# There were at least two = signs on the configuration line
conf_line = rule_key + "=" + rule_value
delim_pos = conf_line.rfind("=")
rule_key = conf_line[0:delim_pos].strip()
rule_value = conf_line[delim_pos + 1:].strip()
self.log.debug(
"MergerConfig::_prepare_user_rules: Reconstituted"
" configuration line '{}' to extract adjusted key '{}'"
" with value '{}'".format(conf_line, rule_key, rule_value))
rule_path = YAMLPath(rule_key)
yaml_path = YAMLPath.strip_path_prefix(rule_path, merge_path)
self.log.debug(
"MergerConfig::_prepare_user_rules: Matching '{}' nodes to"
" YAML Path '{}' from key, {}.".format(section, yaml_path,
rule_key))
try:
for node_coord in proc.get_nodes(yaml_path, mustexist=True):
self.log.debug(
"Node will have merging rule, {}:".format(rule_value),
prefix="MergerConfig::_prepare_user_rules: ",
data=node_coord.node)
collector[node_coord] = rule_value
except YAMLPathException:
self.log.warning("{} YAML Path matches no nodes: {}".format(
section, yaml_path))
self.log.debug("Matched rules to nodes:",
prefix="MergerConfig::_prepare_user_rules: ")
for node_coord, merge_rule in collector.items():
self.log.debug("... RULE: {}".format(merge_rule),
prefix="MergerConfig::_prepare_user_rules: ")
self.log.debug("... NODE:",
data=node_coord,
prefix="MergerConfig::_prepare_user_rules: ")
