tdlight/tdutils/td/utils/port/path.h

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//
2021-01-01 13:57:46 +01:00
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/utils/common.h"
#include "td/utils/port/FileFd.h"
#include "td/utils/Slice.h"
#include "td/utils/Status.h"
#include <functional>
#include <type_traits>
#include <utility>
namespace td {
Status mkdir(CSlice dir, int32 mode = 0700) TD_WARN_UNUSED_RESULT;
Status mkpath(CSlice path, int32 mode = 0700) TD_WARN_UNUSED_RESULT;
Status rename(CSlice from, CSlice to) TD_WARN_UNUSED_RESULT;
Result<string> realpath(CSlice slice, bool ignore_access_denied = false) TD_WARN_UNUSED_RESULT;
Status chdir(CSlice dir) TD_WARN_UNUSED_RESULT;
Status rmdir(CSlice dir) TD_WARN_UNUSED_RESULT;
Status unlink(CSlice path) TD_WARN_UNUSED_RESULT;
Status rmrf(CSlice path) TD_WARN_UNUSED_RESULT;
Status set_temporary_dir(CSlice dir) TD_WARN_UNUSED_RESULT;
CSlice get_temporary_dir();
Result<std::pair<FileFd, string>> mkstemp(CSlice dir) TD_WARN_UNUSED_RESULT;
Result<string> mkdtemp(CSlice dir, Slice prefix) TD_WARN_UNUSED_RESULT;
class WalkPath {
public:
enum class Action { Continue, Abort, SkipDir };
enum class Type { EnterDir, ExitDir, NotDir };
template <class F, class R = decltype(std::declval<F>()("", Type::ExitDir))>
static TD_WARN_UNUSED_RESULT std::enable_if_t<std::is_same<R, Action>::value, Status> run(CSlice path, F &&func) {
return do_run(path, func);
}
template <class F, class R = decltype(std::declval<F>()("", Type::ExitDir))>
static TD_WARN_UNUSED_RESULT std::enable_if_t<!std::is_same<R, Action>::value, Status> run(CSlice path, F &&func) {
return do_run(path, [&](CSlice name, Type type) {
func(name, type);
return Action::Continue;
});
}
private:
static TD_WARN_UNUSED_RESULT Status do_run(CSlice path,
const std::function<WalkPath::Action(CSlice name, Type type)> &func);
};
// deprecated interface
template <class F>
TD_WARN_UNUSED_RESULT Status walk_path(CSlice path, F &&func) {
return WalkPath::run(path, func);
}
} // namespace td