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86 lines
2.4 KiB
86 lines
2.4 KiB
/*
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* Copyright (C) 2020 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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#define LOG_TAG "libapexutil"
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#include "apexutil.h"
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#include <dirent.h>
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#include <string.h>
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#include <memory>
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#include <android-base/file.h>
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#include <android-base/logging.h>
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#include <android-base/result.h>
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#include <apex_manifest.pb.h>
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using ::android::base::Error;
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using ::android::base::ReadFileToString;
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using ::android::base::Result;
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using ::apex::proto::ApexManifest;
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namespace {
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Result<ApexManifest> ParseApexManifest(const std::string &manifest_path) {
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std::string content;
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if (!ReadFileToString(manifest_path, &content)) {
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return Error() << "Failed to read manifest file: " << manifest_path;
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}
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ApexManifest manifest;
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if (!manifest.ParseFromString(content)) {
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return Error() << "Can't parse APEX manifest: " << manifest_path;
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}
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return manifest;
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}
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} // namespace
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namespace android {
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namespace apex {
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std::map<std::string, ApexManifest>
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GetActivePackages(const std::string &apex_root) {
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std::unique_ptr<DIR, decltype(&closedir)> dir(opendir(apex_root.c_str()),
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closedir);
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if (!dir) {
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return {};
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}
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std::map<std::string, ApexManifest> apexes;
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dirent *entry;
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while ((entry = readdir(dir.get())) != nullptr) {
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if (entry->d_name[0] == '.')
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continue;
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if (entry->d_type != DT_DIR)
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continue;
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if (strchr(entry->d_name, '@') != nullptr)
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continue;
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if (strcmp(entry->d_name, "sharedlibs") == 0)
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continue;
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std::string apex_path = apex_root + "/" + entry->d_name;
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auto manifest = ParseApexManifest(apex_path + "/apex_manifest.pb");
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if (manifest.ok()) {
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apexes.emplace(std::move(apex_path), std::move(*manifest));
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} else {
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LOG(WARNING) << manifest.error();
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}
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}
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return apexes;
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}
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} // namespace apex
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} // namespace android
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