/* ----------------------------------------------------------------------
   LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
   https://www.lammps.org/, Sandia National Laboratories
   LAMMPS development team: developers@lammps.org

   Copyright (2003) Sandia Corporation.  Under the terms of Contract
   DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
   certain rights in this software.  This software is distributed under
   the GNU General Public License.

   See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */

#include "helpers.h"

#include <QFile>
#include <QFileInfo>
#include <QProcess>
#include <QStringList>

// duplicate string, STL version
char *mystrdup(const std::string &text)
{
    auto tmp = new char[text.size() + 1];
    memcpy(tmp, text.c_str(), text.size() + 1);
    return tmp;
}

// duplicate string, pointer version
char *mystrdup(const char *text)
{
    return mystrdup(std::string(text));
}

// duplicate string, Qt version
char *mystrdup(const QString &text)
{
    return mystrdup(text.toStdString());
}

// find if executable is in path
// https://stackoverflow.com/a/51041497

bool has_exe(const QString &exe)
{
    QProcess findProcess;
    QStringList arguments;
    arguments << exe;
#if defined(_WIN32)
    findProcess.start("where", arguments);
#else
    findProcess.start("which", arguments);
#endif
    findProcess.setReadChannel(QProcess::ProcessChannel::StandardOutput);

    if (!findProcess.waitForFinished()) return false; // Not found or which does not work

    QString retStr(findProcess.readAll());
    retStr = retStr.trimmed();

    QFile file(retStr);
    QFileInfo check_file(file);
    if (check_file.exists() && check_file.isFile())
        return true; // Found!
    else
        return false; // Not found!
}

// Local Variables:
// c-basic-offset: 4
// End: