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* Copyright (C) 2018 The Android Open Source Project
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
#include <string>
#include <android-base/macros.h>
// A singleton class to maintain the update related paths. The paths should be only set once at the
// start of the program.
class Paths {
static Paths& Get();
std::string cache_log_directory() const {
return cache_log_directory_;
void set_cache_log_directory(const std::string& log_dir) {
cache_log_directory_ = log_dir;
std::string cache_temp_source() const {
return cache_temp_source_;
void set_cache_temp_source(const std::string& temp_source) {
cache_temp_source_ = temp_source;
std::string last_command_file() const {
return last_command_file_;
void set_last_command_file(const std::string& last_command_file) {
last_command_file_ = last_command_file;
std::string resource_dir() const {
return resource_dir_;
void set_resource_dir(const std::string& resource_dir) {
resource_dir_ = resource_dir;
std::string stash_directory_base() const {
return stash_directory_base_;
void set_stash_directory_base(const std::string& base) {
stash_directory_base_ = base;
std::string temporary_install_file() const {
return temporary_install_file_;
void set_temporary_install_file(const std::string& install_file) {
temporary_install_file_ = install_file;
std::string temporary_log_file() const {
return temporary_log_file_;
void set_temporary_log_file(const std::string& log_file) {
temporary_log_file_ = log_file;
std::string temporary_update_binary() const {
return temporary_update_binary_;
void set_temporary_update_binary(const std::string& update_binary) {
temporary_update_binary_ = update_binary;
// Path to the directory that contains last_log and last_kmsg log files.
std::string cache_log_directory_;
// Path to the temporary source file on /cache. When there isn't enough room on the target
// filesystem to hold the patched version of the file, we copy the original here and delete it to
// free up space. If the expected source file doesn't exist, or is corrupted, we look to see if
// the cached file contains the bits we want and use it as the source instead.
std::string cache_temp_source_;
// Path to the last command file.
std::string last_command_file_;
// Path to the resource dir;
std::string resource_dir_;
// Path to the base directory to write stashes during update.
std::string stash_directory_base_;
// Path to the temporary file that contains the install result.
std::string temporary_install_file_;
// Path to the temporary log file while under recovery.
std::string temporary_log_file_;
// Path to the temporary update binary while installing a non-A/B package.
std::string temporary_update_binary_;
#endif // _OTAUTIL_PATHS_H_