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Tianjie Xu74b0f7c2019-05-22 13:59:57 -07001/*
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#pragma once
18
19#include <list>
20#include <map>
21#include <string>
22#include <string_view>
23
24#include <android-base/file.h>
25
26// This class serves as the aggregation of the fake block device information during update
27// simulation on host. In specific, it has the name of the block device, its mount point, and the
28// path to the temporary file that fakes this block device.
29class FakeBlockDevice {
30 public:
31 FakeBlockDevice(std::string block_device, std::string mount_point, std::string temp_file_path)
32 : blockdev_name(std::move(block_device)),
33 mount_point(std::move(mount_point)),
34 mounted_file_path(std::move(temp_file_path)) {}
35
36 std::string blockdev_name;
37 std::string mount_point;
38 std::string mounted_file_path; // path to the temp file that mocks the block device
39};
40
41// This class stores the information of the source build. For example, it creates and maintains
42// the temporary files to simulate the block devices on host. Therefore, the simulator runtime can
43// query the information and run the update on host.
44class BuildInfo {
45 public:
Tianjie Xu60b242c2019-07-30 16:48:52 -070046 BuildInfo(const std::string_view work_dir, bool keep_images)
47 : work_dir_(work_dir), keep_images_(keep_images) {}
Tianjie Xu74b0f7c2019-05-22 13:59:57 -070048 // Returns the value of the build properties.
49 std::string GetProperty(const std::string_view key, const std::string_view default_value) const;
50 // Returns the path to the mock block device.
51 std::string FindBlockDeviceName(const std::string_view name) const;
52 // Parses the given target-file, initializes the build properties and extracts the images.
53 bool ParseTargetFile(const std::string_view target_file_path, bool extracted_input);
54
Tianjie Xu7efd2332019-07-15 16:13:49 -070055 std::string GetOemSettings() const {
56 return oem_settings_;
57 }
58 void SetOemSettings(const std::string_view oem_settings) {
59 oem_settings_ = oem_settings;
60 }
61
Tianjie Xu74b0f7c2019-05-22 13:59:57 -070062 private:
63 // A map to store the system properties during simulation.
64 std::map<std::string, std::string, std::less<>> build_props_;
Tianjie Xu7efd2332019-07-15 16:13:49 -070065 // A file that contains the oem properties.
66 std::string oem_settings_;
Tianjie Xu74b0f7c2019-05-22 13:59:57 -070067 // A map from the blockdev_name to the FakeBlockDevice object, which contains the path to the
68 // temporary file.
69 std::map<std::string, FakeBlockDevice, std::less<>> blockdev_map_;
70
71 std::list<TemporaryFile> temp_files_;
72 std::string work_dir_; // A temporary directory to store the extracted image files
Tianjie Xu60b242c2019-07-30 16:48:52 -070073 bool keep_images_;
Tianjie Xu74b0f7c2019-05-22 13:59:57 -070074};