calamares/src/modules/users/SetHostNameJob.cpp
Adriaan de Groot 695b88b8a7 [users] Tidy up hostname creation
- Use the createTargetFile() convenience functions to do the
   actual work.
 - This probably involves more copying around of buffers, since it's
   creating one big QString and sending that off, rather than writing
   little chunks to a file, but I feel this is worth the code simplification.
 - Drops all the error checking for creation, though, because the API for
   createTargetFile() lousy.
2020-02-14 12:31:53 +01:00

108 lines
3.1 KiB
C++

/* === This file is part of Calamares - <https://github.com/calamares> ===
*
* Copyright 2014, Rohan Garg <rohan@kde.org>
* Copyright 2015, Teo Mrnjavac <teo@kde.org>
* Copyright 2018, 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 "SetHostNameJob.h"
#include "GlobalStorage.h"
#include "JobQueue.h"
#include "utils/CalamaresUtilsSystem.h"
#include "utils/Logger.h"
#include <QDir>
#include <QFile>
SetHostNameJob::SetHostNameJob( const QString& hostname )
: Calamares::Job()
, m_hostname( hostname )
{
}
QString
SetHostNameJob::prettyName() const
{
return tr( "Set hostname %1" ).arg( m_hostname );
}
QString
SetHostNameJob::prettyDescription() const
{
return tr( "Set hostname <strong>%1</strong>." ).arg( m_hostname );
}
QString
SetHostNameJob::prettyStatusMessage() const
{
return tr( "Setting hostname %1." ).arg( m_hostname );
}
Calamares::JobResult
SetHostNameJob::exec()
{
Calamares::GlobalStorage* gs = Calamares::JobQueue::instance()->globalStorage();
if ( !gs || !gs->contains( "rootMountPoint" ) )
{
cError() << "No rootMountPoint in global storage";
return Calamares::JobResult::error( tr( "Internal Error" ) );
}
QString destDir = gs->value( "rootMountPoint" ).toString();
if ( !QDir( destDir ).exists() )
{
cError() << "rootMountPoint points to a dir which does not exist";
return Calamares::JobResult::error( tr( "Internal Error" ) );
}
CalamaresUtils::System::instance()->createTargetFile( QStringLiteral( "/etc/hostname" ),
( m_hostname + '\n' ).toUtf8() );
#if 0
if ( !hostfile.open( QFile::WriteOnly ) )
{
cError() << "Can't write to hostname file";
return Calamares::JobResult::error( tr( "Cannot write hostname to target system" ) );
}
#endif
// The actual hostname gets substituted in at %1
static const char etc_hosts[] = R"(# Host addresses
127.0.0.1 localhost
127.0.1.1 %1
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
)";
CalamaresUtils::System::instance()->createTargetFile( QStringLiteral( "/etc/hosts" ),
QString( etc_hosts ).arg( m_hostname ).toUtf8() );
#if 0
if ( !hostsfile.open( QFile::WriteOnly ) )
{
cError() << "Can't write to hosts file";
return Calamares::JobResult::error( tr( "Cannot write hostname to target system" ) );
}
#endif
return Calamares::JobResult::ok();
}