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# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
"""Schema for environment modifications. Meant for inclusion in other
schemas.
"""
import collections.abc
array_of_strings_or_num = {
"type": "array",
"default": [],
"items": {"anyOf": [{"type": "string"}, {"type": "number"}]},
}
dictionary_of_strings_or_num = {
"type": "object",
"patternProperties": {r"\w[\w-]*": {"anyOf": [{"type": "string"}, {"type": "number"}]}},
}
definition = {
"type": "object",
"default": {},
"additionalProperties": False,
"properties": {
"set": dictionary_of_strings_or_num,
"unset": array_of_strings_or_num,
"prepend_path": dictionary_of_strings_or_num,
"append_path": dictionary_of_strings_or_num,
"remove_path": dictionary_of_strings_or_num,
},
}
def parse(config_obj):
"""Returns an EnvironmentModifications object containing the modifications
parsed from input.
Args:
config_obj: a configuration dictionary conforming to the
schema definition for environment modifications
"""
import spack.util.environment as ev
env = ev.EnvironmentModifications()
for command, variable in config_obj.items():
# Distinguish between commands that take only a name as argument
# (e.g. unset) and commands that take a name and a value.
if isinstance(variable, collections.abc.Sequence):
for name in variable:
getattr(env, command)(name)
else:
for name, value in variable.items():
getattr(env, command)(name, value)
return env
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