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https://github.com/kidfromjupiter/nearby.git
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90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
// Copyright 2025 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_FILE_PATH_H_
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#define THIRD_PARTY_NEARBY_INTERNAL_BASE_FILE_PATH_H_
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#include <filesystem> // NOLINT
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#include <string>
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#include <utility>
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#include "absl/strings/string_view.h"
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namespace nearby {
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// A replacement for std::filesystem::path that is exception safe, and is safe
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// for use with Unicode paths in Windows.
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class FilePath {
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public:
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FilePath() = default;
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FilePath(const FilePath&) = default;
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FilePath& operator=(const FilePath&) = default;
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FilePath(FilePath&&) = default;
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FilePath& operator=(FilePath&&) = default;
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// Creates a FilePath from a UTF-8 encoded string.
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// The `path` must be a valid UTF-8 sequence, otherwise the behavior is
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// undefined.
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explicit FilePath(absl::string_view path);
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// Creates a FilePath from a unicode string.
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explicit FilePath(std::wstring_view path);
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// Returns the path as a UTF-8 encoded string.
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std::string ToString() const;
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// Returns the path as a unicode string.
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std::wstring ToWideString() const;
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// Returns true if the path is empty.
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bool IsEmpty() const;
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// Appends the given `subpath` to this path using a path separator..
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FilePath& append(const FilePath& subpath);
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// Returns the last component of this path.
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FilePath GetFileName() const;
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// Returns the extension of the last component of this path.
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// The return extension includes the "." prefix.
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FilePath GetExtension() const;
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// Returns the path of the parent directory of this path.
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FilePath GetParentPath() const;
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// TODO: b/418255947 - Remove after migration is complete.
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std::filesystem::path GetPath() const { return path_; }
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friend auto operator<=>(const FilePath& lhs, const FilePath& rhs) = default;
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// Hash function for absl containers.
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template <typename H>
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friend H AbslHashValue(H h, const FilePath& path) {
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return H::combine(std::move(h), path.path_);
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}
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private:
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static FilePath FromPath(std::filesystem::path path) {
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FilePath result;
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result.path_ = std::move(path);
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return result;
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}
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std::filesystem::path path_;
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friend class Files;
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};
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} // namespace nearby
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#endif // THIRD_PARTY_NEARBY_INTERNAL_BASE_FILE_PATH_H_
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