calamares/src/libcalamares/partition/Sync.cpp

/* === This file is part of Calamares - <https://github.com/calamares> ===
 *
 *   Copyright 2019-2020, Adriaan de Groot <groot@kde.org>
 *
 *   Calamares is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   Calamares 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
 */

#include "Sync.h"

#include "utils/CalamaresUtilsSystem.h"
#include "utils/Logger.h"

void
CalamaresUtils::Partition::sync()
{
    /* I would normally use full paths here, e.g. /sbin/udevadm and /bin/sync,
     * but there's enough variation / opinion on where these executables
     * should live, that full paths would need to be configurable.
     * Instead, just run them and assume they're found in PATH;
     * either chroot(8) or env(1) is used to run the command,
     * and they do suitable lookup.
     */
    auto r = CalamaresUtils::System::runCommand( { "udevadm", "settle" }, std::chrono::seconds( 10 ) );

    if ( r.getExitCode() != 0 )
    {
        cWarning() << "Could not settle disks.";
        r.explainProcess( "udevadm", std::chrono::seconds( 10 ) );
    }

    CalamaresUtils::System::runCommand( { "sync" }, std::chrono::seconds( 10 ) );
}