0daf186a89
The code assumes a different source structure. It requires updating the path configurations. Bug: 230448564 Test: N/A Change-Id: I38bf181eecdd291712212ba8ee6d61b85c3fbb07
80 lines
2.0 KiB
Python
80 lines
2.0 KiB
Python
# Copyright (C) 2022 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import os
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import yaml
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def parse_hierarchy(build_top):
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"""Parse build hierarchy file from given build top directory, and returns a dict from child targets to parent targets.
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Example of hierarchy file:
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==========
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aosp_arm64:
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- armv8
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- aosp_cf_arm64_phone
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armv8:
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- aosp_oriole
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- aosp_sunfish
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aosp_oriole:
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- oriole
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aosp_sunfish:
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- sunfish
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oriole:
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# leaf
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sunfish:
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# leaf
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==========
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If we parse this yaml, we get a dict looking like:
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{
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"sunfish": "aosp_sunfish",
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"oriole": "aosp_oriole",
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"aosp_oriole": "armv8",
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"aosp_sunfish": "armv8",
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"armv8": "aosp_arm64",
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"aosp_cf_arm64_phone": "aosp_arm64",
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"aosp_arm64": None, # no parent
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}
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"""
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metadata_path = os.path.join(build_top, 'tools', 'build', 'hierarchy.yaml')
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if not os.path.isfile(metadata_path):
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raise RuntimeError("target metadata file %s doesn't exist" % metadata_path)
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with open(metadata_path, 'r') as f:
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hierarchy_yaml = yaml.load(f, Loader=yaml.SafeLoader)
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hierarchy_map = dict()
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for parent_target, child_targets in hierarchy_yaml.items():
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if not child_targets:
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# leaf
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continue
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for child_target in child_targets:
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hierarchy_map[child_target] = parent_target
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for parent_target in hierarchy_yaml:
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# targets with no parent
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if parent_target not in hierarchy_map:
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hierarchy_map[parent_target] = None
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return hierarchy_map
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