mirror of
https://github.com/kidfromjupiter/nearby.git
synced 2026-09-15 07:06:11 -04:00
119 lines
3.2 KiB
C++
119 lines
3.2 KiB
C++
// Copyright 2024 Google LLC
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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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// https://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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#include "internal/base/files.h"
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#include <cstdint>
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#include <filesystem> // NOLINT(build/c++17)
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#include <optional>
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#include <system_error> // NOLINT(build/c++11)
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namespace nearby::sharing {
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bool FileExists(const std::filesystem::path& path) {
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std::error_code error_code;
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if (std::filesystem::exists(path, error_code) &&
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!std::filesystem::is_directory(path, error_code)) {
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// is_directory returns false on error.
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return (!error_code);
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}
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return false;
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}
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std::optional<uintmax_t> GetFileSize(const std::filesystem::path& path) {
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if (!FileExists(path)) {
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return std::nullopt;
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}
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std::error_code error_code;
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uintmax_t size = std::filesystem::file_size(path, error_code);
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if (size == static_cast<uintmax_t>(-1)) {
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return std::nullopt;
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}
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return size;
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}
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bool DirectoryExists(const std::filesystem::path& path) {
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std::error_code error_code;
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if (std::filesystem::exists(path, error_code) &&
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std::filesystem::is_directory(path, error_code)) {
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return true;
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}
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return false;
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}
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bool RemoveFile(const std::filesystem::path& path) {
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if (!FileExists(path)) {
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return false;
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}
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std::error_code error_code;
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return std::filesystem::remove(path, error_code);
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}
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std::optional<std::filesystem::path> GetTemporaryDirectory() {
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std::error_code error_code;
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std::filesystem::path temp_dir =
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std::filesystem::temp_directory_path(error_code);
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if (temp_dir.empty()) {
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return std::nullopt;
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}
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return temp_dir;
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}
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std::filesystem::path CurrentDirectory() {
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// temp_directory_path() returns empty path on error.
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std::error_code error_code;
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return std::filesystem::current_path(error_code);
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}
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bool Rename(const std::filesystem::path& old_path,
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const std::filesystem::path& new_path) {
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std::error_code error_code;
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std::filesystem::rename(old_path, new_path, error_code);
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if (error_code) {
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return false;
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}
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return true;
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}
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bool CreateDirectories(const std::filesystem::path& path) {
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std::error_code error_code;
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std::filesystem::create_directories(path, error_code);
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if (error_code) {
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return false;
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}
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return true;
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}
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bool CreateHardLink(const std::filesystem::path& target,
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const std::filesystem::path& link_path) {
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std::error_code error_code;
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std::filesystem::create_hard_link(target, link_path, error_code);
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if (error_code) {
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return false;
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}
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return true;
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}
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bool CopyFileSafely(const std::filesystem::path& old_path,
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const std::filesystem::path& new_path) {
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std::error_code error_code;
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std::filesystem::copy(old_path, new_path, error_code);
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if (error_code) {
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return false;
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}
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return true;
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}
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} // namespace nearby::sharing
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