Rearrange sources (#4997)

include/xrpl/beast/utility/temp_dir.h

@@ -0,0 +1,84 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of Beast: https://github.com/vinniefalco/Beast
+    Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef BEAST_UTILITY_TEMP_DIR_H_INCLUDED
+#define BEAST_UTILITY_TEMP_DIR_H_INCLUDED
+
+#include <boost/filesystem.hpp>
+#include <string>
+
+namespace beast {
+
+/** RAII temporary directory.
+
+    The directory and all its contents are deleted when
+    the instance of `temp_dir` is destroyed.
+*/
+class temp_dir
+{
+    boost::filesystem::path path_;
+
+public:
+#if !GENERATING_DOCS
+    temp_dir(const temp_dir&) = delete;
+    temp_dir&
+    operator=(const temp_dir&) = delete;
+#endif
+
+    /// Construct a temporary directory.
+    temp_dir()
+    {
+        auto const dir = boost::filesystem::temp_directory_path();
+        do
+        {
+            path_ = dir / boost::filesystem::unique_path();
+        } while (boost::filesystem::exists(path_));
+        boost::filesystem::create_directory(path_);
+    }
+
+    /// Destroy a temporary directory.
+    ~temp_dir()
+    {
+        // use non-throwing calls in the destructor
+        boost::system::error_code ec;
+        boost::filesystem::remove_all(path_, ec);
+        // TODO: warn/notify if ec set ?
+    }
+
+    /// Get the native path for the temporary directory
+    std::string
+    path() const
+    {
+        return path_.string();
+    }
+
+    /** Get the native path for the a file.
+
+        The file does not need to exist.
+    */
+    std::string
+    file(std::string const& name) const
+    {
+        return (path_ / name).string();
+    }
+};
+
+}  // namespace beast
+
+#endif