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/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* Razor - a lightweight, Qt based, desktop toolset
* http://razor-qt.org
*
* Copyright: 2012 Razor team
* Authors:
* Alexander Sokoloff <sokoloff.a@gmail.com>
*
* This code based on kconf_update utility.
* Copyright (c) 2001 Waldo Bastian <bastian@kde.org>
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.

* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */

#include "rzupdate.h"

#include <QtCore/QCoreApplication>
#include <QtCore/QTextStream>
#include <QtCore/QStringList>

#include "rzwatcher.h"

void printHelp()
{
    QTextStream out(stdout);
    out << "Usage: razor-confupdate [options] [file]" << endl;
    out << endl;
    out << "Razor-qt tool for updating user configuration files" << endl;
    out << endl;
    out << "Generic options:" << endl;
    out << " -h, --help Show help about options" << endl;
    out << " --version Show version information" << endl;
    out << " --watch Do not exit, but watch a new update files." << endl;
    out << " -- End of options" << endl;
    out << endl;
    out << "Options:" << endl;
    out << " --debug Keep output results from scripts" << endl;
    out << " --check <update-file> Check whether config file itself requires updating" << endl;
    //out << " -v, --verbose Explain what is being done" << endl;
    out << endl;
    out << "Arguments:" << endl;
    out << " file File to read update instructions from" << endl;
}

void printVersion()
{
    QTextStream out(stdout);
    out << "razor-confupdate " << "0.5" << endl;
    out << "Copyright (c) 2012 Razor team" << endl;
    out << endl;
    out << "License LGPLv2+: GNU Lesser GPL version 2 or later <http://www.gnu.org/licenses/lgpl-2.1.html>." << endl;
    out << "This is free software: you are free to change and redistribute it." << endl;
    out << "There is NO WARRANTY, to the extent permitted by law." << endl;
    out << endl;
    out << "Program based on kconf_update utility." << endl;
    out << "Copyright (c) 2001 Waldo Bastian <bastian@kde.org>, <bastian@suse.com>" << endl;

}

void printError(const QString &msg)
{
    QTextStream out(stdout);
    out << msg;
    out << "Use --help to get a list of available command line options.";
}

int main(int argc, char **argv)
{
    QCoreApplication app(argc, argv);

    RzUpdate *rzUpdate = new RzUpdate();

    bool debug = false;
    bool watch = false;
    bool processOptions = true;
    QStringList files;
    QStringList args = app.arguments();
    for (int i=1; i < args.count(); ++i)
    {
        QString arg = args.at(i);
        if (processOptions)
        {
            if (arg == "--help" || arg == "-h")
            {
                printHelp();
                return 0;
            }

            if (arg == "--version")
            {
                printVersion();
                return 0;
            }

            if (arg == "--watch")
            {
                watch = true;
                continue;
            }

            if (arg == "--debug")
            {
                debug = true;
                continue;
            }

            if (arg == "--check")
            {
                if (i+1 < args.count())
                {
                    rzUpdate->setArgCheckFile(args.at(i+1));
                    i++;
                    continue;
                }
                else
                {
                    printError("'<update-file>' missing.");
                    continue;
                }
            }

            if (arg == "--")
            {
                processOptions = false;
                continue;
            }
        }
        files << args.at(i);
    }

    rzUpdate->setDebug(debug);
    rzUpdate->run(files);
    delete rzUpdate;

    if (watch)
    {
        RzWatcher watcher(debug);
        app.exec();
    }
    return 0;
}
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