2924961d8a
Bug: 365157972 Test: m aconfig_host_device_paths_java Change-Id: I858cda31e1e20b7df95bd0e6883694f0dd1cdef0
83 lines
2.8 KiB
Java
83 lines
2.8 KiB
Java
/*
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* Copyright (C) 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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package android.aconfig;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import java.util.stream.Collectors;
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/**
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* A host lib that can read all aconfig proto file paths on a given device.
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*/
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public class HostDeviceProtos {
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/**
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* An interface that executes ADB command and return the result.
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*/
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public static interface AdbCommandExecutor {
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/** Executes the ADB command. */
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String executeAdbCommand(String command);
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}
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static final String[] PATHS = {
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TEMPLATE
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};
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private static final String APEX_DIR = "/apex";
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private static final String RECURSIVELY_LIST_APEX_DIR_COMMAND = "shell find /apex | grep aconfig_flags";
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private static final String APEX_ACONFIG_PATH_SUFFIX = "/etc/aconfig_flags.pb";
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/**
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* Returns the list of all on-device aconfig proto paths from host side.
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*/
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public static List<String> parsedFlagsProtoPaths(AdbCommandExecutor adbCommandExecutor) {
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ArrayList<String> paths = new ArrayList(Arrays.asList(PATHS));
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String adbCommandOutput = adbCommandExecutor.executeAdbCommand(
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RECURSIVELY_LIST_APEX_DIR_COMMAND);
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if (adbCommandOutput == null) {
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return paths;
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}
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Set<String> allFiles = new HashSet<>(Arrays.asList(adbCommandOutput.split("\n")));
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Set<String> subdirs = allFiles.stream().map(file -> {
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String[] filePaths = file.split("/");
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// The first element is "", the second element is "apex".
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return filePaths.length > 2 ? filePaths[2] : "";
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}).collect(Collectors.toSet());
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for (String prefix : subdirs) {
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// For each mainline modules, there are two directories, one <modulepackage>/,
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// and one <modulepackage>@<versioncode>/. Just read the former.
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if (prefix.contains("@")) {
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continue;
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}
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String protoPath = APEX_DIR + "/" + prefix + APEX_ACONFIG_PATH_SUFFIX;
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if (allFiles.contains(protoPath)) {
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paths.add(protoPath);
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}
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}
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return paths;
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}
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}
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