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77 lines
2.7 KiB
C++
77 lines
2.7 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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#ifndef THIRD_PARTY_NEARBY_INTERNAL_BASE_FILES_H_
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#define THIRD_PARTY_NEARBY_INTERNAL_BASE_FILES_H_
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#include <cstddef>
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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 "internal/base/file_path.h"
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// This file contains exception safe wrappers to access common std::filesystem
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// functions.
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namespace nearby::sharing {
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// Returns true if path exists and is not a directory.
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bool FileExists(const std::filesystem::path& path);
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// Returns the size of the file at path, or nullopt if not found or not a file.
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std::optional<uintmax_t> GetFileSize(const std::filesystem::path& path);
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// Returns true if path exists and is a directory.
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bool DirectoryExists(const std::filesystem::path& path);
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// Removes the file at path and returns true.
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// Returns false if path does not exist, is not a file or cannot be removed.
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bool RemoveFile(const std::filesystem::path& path);
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bool RemoveDirectory(const FilePath& path);
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// Returns path to a temporary directory if available.
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std::optional<FilePath> GetTemporaryDirectory();
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// Returns path to the current directory. On failure returns an empty path.
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FilePath CurrentDirectory();
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// Renames the file at old_path to new_path.
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// Returns true on success.
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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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// Creates all directory leading to path.
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// Returns true on success.
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bool CreateDirectories(const std::filesystem::path& path);
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// Creates a hard link to target at link_path.
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// Returns true on success.
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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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// Copies the file at old_path to new_path.
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// Returns true on success.
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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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// Returns the available disk space in bytes for the given path.
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// Returns nullopt if the path does not exist or if the space cannot be
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// determined.
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std::optional<size_t> GetAvailableDiskSpaceInBytes(const FilePath& path);
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} // namespace nearby::sharing
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#endif // THIRD_PARTY_NEARBY_INTERNAL_BASE_FILES_H_
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