auto_cleaners.hpp

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/// \file utils/fs/auto_cleaners.hpp
/// RAII wrappers to automatically remove file system entries.

#if !defined(UTILS_FS_AUTO_CLEANERS_HPP)
#define UTILS_FS_AUTO_CLEANERS_HPP

#include "utils/fs/auto_cleaners_fwd.hpp"

#include <memory>
#include <string>

#include "utils/fs/path_fwd.hpp"

namespace utils {
namespace fs {


/// Grabs ownership of a directory and removes it upon destruction.
///
/// This class is reference-counted and therefore only the destruction of the
/// last instance will cause the removal of the directory.
class auto_directory {
    struct impl;
    /// Reference-counted, shared implementation.
    std::shared_ptr< impl > _pimpl;

public:
    explicit auto_directory(const path&);
    ~auto_directory(void);

    static auto_directory mkdtemp_public(const std::string&);

    const path& directory(void) const;
    void cleanup(void);
};


/// Grabs ownership of a file and removes it upon destruction.
///
/// This class is reference-counted and therefore only the destruction of the
/// last instance will cause the removal of the file.
class auto_file {
    struct impl;
    /// Reference-counted, shared implementation.
    std::shared_ptr< impl > _pimpl;

public:
    explicit auto_file(const path&);
    ~auto_file(void);

    static auto_file mkstemp(const std::string&);

    const path& file(void) const;
    void remove(void);
};


}  // namespace fs
}  // namespace utils

#endif  // !defined(UTILS_FS_AUTO_CLEANERS_HPP)