initial commit

tdutils/td/utils/port/path.h

@@ -0,0 +1,84 @@
+/*
+    This file is part of TON Blockchain Library.
+
+    TON Blockchain Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    (at your option) any later version.
+
+    TON Blockchain Library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with TON Blockchain Library.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2017-2019 Telegram Systems LLP
+*/
+#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