| // Copyright 2014 The ChromiumOS Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Wrapper around /etc/os-release and /etc/os-release.d. |
| // Standard fields can come from both places depending on how we set them. They |
| // should always be accessed through this interface. |
| |
| #ifndef LIBBRILLO_BRILLO_OSRELEASE_READER_H_ |
| #define LIBBRILLO_BRILLO_OSRELEASE_READER_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include <brillo/brillo_export.h> |
| #include <brillo/key_value_store.h> |
| #include <gtest/gtest_prod.h> |
| |
| namespace brillo { |
| |
| class BRILLO_EXPORT OsReleaseReader final { |
| public: |
| // Create an empty reader |
| OsReleaseReader() = default; |
| OsReleaseReader(const OsReleaseReader&) = delete; |
| OsReleaseReader& operator=(const OsReleaseReader&) = delete; |
| |
| // Loads the key=value pairs from either /etc/os-release.d/<KEY> or |
| // /etc/os-release. |
| void Load(); |
| |
| // Same as the private Load method. |
| // This need to be public so that services can use it in testing mode (for |
| // autotest tests for example). |
| // This should not be used in production so suffix it with TestingOnly to |
| // make it obvious. |
| void LoadTestingOnly(const base::FilePath& root_dir); |
| |
| // Getter for the given key. Returns whether the key was found on the store. |
| bool GetString(const std::string& key, std::string* value) const; |
| |
| // Getter for all the keys in /etc/os-release. |
| std::vector<std::string> GetKeys() const; |
| |
| private: |
| // The map storing all the key-value pairs. |
| KeyValueStore store_; |
| |
| // os-release can be lazily loaded if need be. |
| bool initialized_; |
| |
| // Load the data from a given root_dir. |
| BRILLO_PRIVATE void Load(const base::FilePath& root_dir); |
| }; |
| |
| } // namespace brillo |
| |
| #endif // LIBBRILLO_BRILLO_OSRELEASE_READER_H_ |