libcruft-util/cruft/util/fs/scoped.cpp

/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Copyright 2022, Danny Robson <danny@nerdcruft.net>
 */

#include "./scoped.hpp"
#include "./tmp.hpp"

#include <cruft/util/debug/assert.hpp>

using cruft::fs::scoped_dir;
using cruft::fs::scoped_path;


///////////////////////////////////////////////////////////////////////////////
scoped_path::scoped_path (std::filesystem::path &&_path)
    : m_path (std::move (_path))
{
    CHECK (std::filesystem::exists (*m_path));
}


//-----------------------------------------------------------------------------
scoped_path::scoped_path (std::filesystem::path const &_path)
    : scoped_path (std::filesystem::path (_path))
{ ; }


//-----------------------------------------------------------------------------
std::filesystem::path const &
scoped_path::operator* () const &
{
    return get ();
}


//-----------------------------------------------------------------------------
std::filesystem::path const*
scoped_path::operator-> () const &
{
    return &get();
}


//-----------------------------------------------------------------------------
std::filesystem::path const&
scoped_path::get () const&
{
    return *m_path;
}


//-----------------------------------------------------------------------------
std::filesystem::path
scoped_path::release ()
{
    auto res = std::move (*m_path);
    m_path.reset ();
    return res;
}


//-----------------------------------------------------------------------------
void
scoped_path::reset (void)
{
    return m_path.reset ();
}


//-----------------------------------------------------------------------------
scoped_path::~scoped_path ()
{
    if (m_path)
        std::filesystem::remove_all (*m_path);
}


///////////////////////////////////////////////////////////////////////////////
scoped_dir::scoped_dir (std::filesystem::path const &_path)
    : scoped_dir (std::filesystem::path (_path))
{}


//-----------------------------------------------------------------------------
scoped_dir::scoped_dir (std::filesystem::path &&_path)
    : scoped_path (std::move (_path))
{
    CHECK (std::filesystem::is_directory (get ()));
}


///////////////////////////////////////////////////////////////////////////////
cruft::fs::scoped_dir
cruft::fs::scoped_tmpdir ()
{
    return scoped_dir (cruft::fs::mktmpdir ());
}