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#ifndef FILESAVER_H
#define FILESAVER_H

#include "qbs_export.h"

#include <memory>
#include <sstream>
#include <string>
#include <vector>

namespace qbs {
namespace Internal {

/*!
 * QSaveFile wrapper which doesn't update the target file if the contents are unchanged.
 */
class QBS_EXPORT FileSaver {
public:
    FileSaver(std::string filePath, bool overwriteIfUnchanged = false);

    std::ostream *device();
    bool open();
    bool commit();
    bool write(std::string_view data);

private:
    std::string m_oldFileContents;
    std::shared_ptr<std::stringstream> m_memoryDevice;
    const std::string m_filePath;
    const bool m_overwriteIfUnchanged;
};

} // namespace Internal
} // namespace qbs

#endif // FILESAVER_H
