5717d6f2db
Move the test build command to a script that lives in-source and intended to be called by the Android CI build system. This script optimizes the build when change information is available by only building relevant test modules. More specifically, only 'affected' test modules listed in Test Mapping configuration files are built. Using this script is expected to reduce build times and generate a smaller `general-tests.zip` file which had increased to over 30 GB. Test: ./build/make/ci/build_test_suites --target_product aosp_x86_64 --target_release trunk_staging --with_dexpreopt_boot_img_and_system_server_only --dist_dir <dist_dir> --change_info <change_info_file> <extra_targets> Bug: 314171817 Change-Id: Ie2f8c066f5dd1cd13454141e55956328303fd79d
126 lines
4.5 KiB
Python
126 lines
4.5 KiB
Python
# Copyright 2024, 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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Simple parsing code to scan test_mapping files and determine which
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modules are needed to build for the given list of changed files.
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TODO(lucafarsi): Deduplicate from artifact_helper.py
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"""
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from typing import Any, Dict, Set, Text
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import json
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import os
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import re
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# Regex to extra test name from the path of test config file.
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TEST_NAME_REGEX = r'(?:^|.*/)([^/]+)\.config'
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# Key name for TEST_MAPPING imports
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KEY_IMPORTS = 'imports'
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KEY_IMPORT_PATH = 'path'
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# Name of TEST_MAPPING file.
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TEST_MAPPING = 'TEST_MAPPING'
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# Pattern used to identify double-quoted strings and '//'-format comments in
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# TEST_MAPPING file, but only double-quoted strings are included within the
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# matching group.
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_COMMENTS_RE = re.compile(r'(\"(?:[^\"\\]|\\.)*\"|(?=//))(?://.*)?')
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def FilterComments(test_mapping_file: Text) -> Text:
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"""Remove comments in TEST_MAPPING file to valid format.
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Only '//' is regarded as comments.
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Args:
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test_mapping_file: Path to a TEST_MAPPING file.
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Returns:
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Valid json string without comments.
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"""
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return re.sub(_COMMENTS_RE, r'\1', test_mapping_file)
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def GetTestMappings(paths: Set[Text],
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checked_paths: Set[Text]) -> Dict[Text, Dict[Text, Any]]:
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"""Get the affected TEST_MAPPING files.
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TEST_MAPPING files in source code are packaged into a build artifact
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`test_mappings.zip`. Inside the zip file, the path of each TEST_MAPPING file
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is preserved. From all TEST_MAPPING files in the source code, this method
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locates the affected TEST_MAPPING files based on the given paths list.
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A TEST_MAPPING file may also contain `imports` that import TEST_MAPPING files
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from a different location, e.g.,
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"imports": [
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{
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"path": "../folder2"
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}
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]
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In that example, TEST_MAPPING files inside ../folder2 (relative to the
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TEST_MAPPING file containing that imports section) and its parent directories
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will also be included.
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Args:
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paths: A set of paths with related TEST_MAPPING files for given changes.
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checked_paths: A set of paths that have been checked for TEST_MAPPING file
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already. The set is updated after processing each TEST_MAPPING file. It's
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used to prevent infinite loop when the method is called recursively.
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Returns:
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A dictionary of Test Mapping containing the content of the affected
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TEST_MAPPING files, indexed by the path containing the TEST_MAPPING file.
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"""
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test_mappings = {}
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# Search for TEST_MAPPING files in each modified path and its parent
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# directories.
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all_paths = set()
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for path in paths:
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dir_names = path.split(os.path.sep)
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all_paths |= set(
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[os.path.sep.join(dir_names[:i + 1]) for i in range(len(dir_names))])
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# Add root directory to the paths to search for TEST_MAPPING file.
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all_paths.add('')
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all_paths.difference_update(checked_paths)
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checked_paths |= all_paths
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# Try to load TEST_MAPPING file in each possible path.
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for path in all_paths:
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try:
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test_mapping_file = os.path.join(os.path.join(os.getcwd(), path), 'TEST_MAPPING')
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# Read content of TEST_MAPPING file.
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content = FilterComments(open(test_mapping_file, "r").read())
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test_mapping = json.loads(content)
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test_mappings[path] = test_mapping
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import_paths = set()
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for import_detail in test_mapping.get(KEY_IMPORTS, []):
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import_path = import_detail[KEY_IMPORT_PATH]
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# Try the import path as absolute path.
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import_paths.add(import_path)
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# Try the import path as relative path based on the test mapping file
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# containing the import.
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norm_import_path = os.path.normpath(os.path.join(path, import_path))
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import_paths.add(norm_import_path)
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import_paths.difference_update(checked_paths)
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if import_paths:
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import_test_mappings = GetTestMappings(import_paths, checked_paths)
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test_mappings.update(import_test_mappings)
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except (KeyError, FileNotFoundError, NotADirectoryError):
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# TEST_MAPPING file doesn't exist in path
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pass
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return test_mappings
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