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61 lines
2.0 KiB
61 lines
2.0 KiB
// Copyright 2014 The Chromium OS Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <brillo/osrelease_reader.h>
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#include <base/files/file_enumerator.h>
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#include <base/files/file_util.h>
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#include <base/logging.h>
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#include <brillo/strings/string_utils.h>
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namespace brillo {
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void OsReleaseReader::Load() {
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Load(base::FilePath("/"));
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}
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bool OsReleaseReader::GetString(const std::string& key,
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std::string* value) const {
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CHECK(initialized_) << "OsReleaseReader.Load() must be called first.";
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return store_.GetString(key, value);
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}
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void OsReleaseReader::LoadTestingOnly(const base::FilePath& root_dir) {
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Load(root_dir);
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}
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void OsReleaseReader::Load(const base::FilePath& root_dir) {
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base::FilePath osrelease = root_dir.Append("etc").Append("os-release");
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if (!store_.Load(osrelease)) {
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// /etc/os-release might not be present (cros deploying a new configuration
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// or no fields set at all). Just print a debug message and continue.
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DLOG(INFO) << "Could not load fields from " << osrelease.value();
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}
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base::FilePath osreleased = root_dir.Append("etc").Append("os-release.d");
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base::FileEnumerator enumerator(
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osreleased, false, base::FileEnumerator::FILES);
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for (base::FilePath path = enumerator.Next(); !path.empty();
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path = enumerator.Next()) {
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std::string content;
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if (!base::ReadFileToString(path, &content)) {
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PLOG(ERROR) << "Could not read " << path.value();
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continue;
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}
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// There might be a trailing new line. Strip it to keep only the first line
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// of the file.
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content = brillo::string_utils::SplitAtFirst(content, "\n", true).first;
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store_.SetString(path.BaseName().value(), content);
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}
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initialized_ = true;
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}
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std::vector<std::string> OsReleaseReader::GetKeys() const {
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CHECK(initialized_) << "OsReleaseReader.Load() must be called first.";
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return store_.GetKeys();
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}
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} // namespace brillo
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