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60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
// Copyright 2019 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 SANDBOXED_API_SANDBOX2_UTIL_PATH_H_
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#define SANDBOXED_API_SANDBOX2_UTIL_PATH_H_
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#include <initializer_list>
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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 sapi::file {
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namespace internal {
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// Not part of the public API.
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std::string JoinPathImpl(std::initializer_list<absl::string_view> paths);
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} // namespace internal
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// Joins multiple paths together using the platform-specific path separator.
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// Arguments must be convertible to absl::string_view.
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template <typename... T>
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inline std::string JoinPath(const T&... args) {
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return internal::JoinPathImpl({args...});
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}
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// Return true if path is absolute.
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bool IsAbsolutePath(absl::string_view path);
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// Returns the parts of the path, split on the final "/". If there is no
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// "/" in the path, the first part of the output is empty and the second
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// is the input. If the only "/" in the path is the first character, it is
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// the first part of the output.
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std::pair<absl::string_view, absl::string_view> SplitPath(
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absl::string_view path);
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// Collapses duplicate "/"s, resolve ".." and "." path elements, removes
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// trailing "/".
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//
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// NOTE: This respects relative vs. absolute paths, but does not
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// invoke any system calls in order to resolve relative paths to the actual
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// working directory. That is, this is purely a string manipulation, completely
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// independent of process state.
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std::string CleanPath(absl::string_view path);
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} // namespace sapi::file
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#endif // SANDBOXED_API_SANDBOX2_UTIL_PATH_H_
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