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/**************************************************************************
**
** This file is part of Qt SDK**
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).*
**
** Contact: Nokia Corporation qt-info@nokia.com**
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception version
** 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you are unsure which license is appropriate for your use, please contact
** (qt-info@nokia.com).
**
**************************************************************************/
#include "createdesktopentryoperation.h"
#include "common/errors.h"
#include "common/fileutils.h"
#include <QDir>
#include <QFile>
#include <QFileInfo>
#include <QTextStream>
#include <QProcess>
#if QT_VERSION >= 0x040600
#include <QProcessEnvironment>
#endif
using namespace QInstaller;
QString CreateDesktopEntryOperation::absoluteFileName()
{
const QString filename = arguments().first();
// give filename is already absolute
if (QFileInfo(filename).isAbsolute())
return filename;
// we're not searching for the first time, let's re-use the old value
if (hasValue(QLatin1String("directory")))
return QDir(value(QLatin1String("directory")).toString()).absoluteFilePath(filename);
const QProcessEnvironment env;
QStringList XDG_DATA_DIRS = env.value(QLatin1String("XDG_DATA_DIRS")).split(QLatin1Char(':'),
QString::SkipEmptyParts);
QStringList XDG_DATA_HOME = env.value(QLatin1String("XDG_DATA_HOME")).split(QLatin1Char(':'),
QString::SkipEmptyParts);
XDG_DATA_DIRS.push_back(QLatin1String("/usr/share")); // default path
XDG_DATA_HOME.push_back(QDir::home().absoluteFilePath(QLatin1String(".local/share"))); // default path
const QStringList directories = XDG_DATA_DIRS + XDG_DATA_HOME;
QString directory;
for (QStringList::const_iterator it = directories.begin(); it != directories.end(); ++it) {
if (it->isEmpty())
continue;
directory = QDir(*it).absoluteFilePath(QLatin1String("applications"));
QDir dir(directory);
// let's see wheter this dir exists or we're able to create it
if (!dir.exists() && !QDir().mkpath(directory))
continue;
// we just try wheter we're able to open the file in ReadWrite
QFile file(QDir(directory).absoluteFilePath(filename));
const bool existed = file.exists();
if (!file.open(QIODevice::ReadWrite))
continue;
file.close();
if (!existed)
file.remove();
break;
}
if (!QDir(directory).exists())
QDir().mkpath(directory);
setValue(QLatin1String("directory"), directory);
return QDir(directory).absoluteFilePath(filename);
}
/*
TRANSLATOR QInstaller::CreateDesktopEntryOperation
*/
CreateDesktopEntryOperation::CreateDesktopEntryOperation()
{
setName(QLatin1String("CreateDesktopEntry"));
}
CreateDesktopEntryOperation::~CreateDesktopEntryOperation()
{
deleteFileNowOrLater(value(QLatin1String("backupOfExistingDesktopEntry")).toString());
}
void CreateDesktopEntryOperation::backup()
{
const QString filename = absoluteFileName();
if (!QFile::exists(filename))
return;
try {
setValue(QLatin1String("backupOfExistingDesktopEntry"), generateTemporaryFileName(filename));
} catch (const QInstaller::Error &e) {
setErrorString(e.message());
return;
}
if (!QFile::copy(filename, value(QLatin1String("backupOfExistingDesktopEntry")).toString()))
setErrorString(QObject::tr("Could not backup file %1").arg(filename));
}
bool CreateDesktopEntryOperation::performOperation()
{
const QStringList args = arguments();
if (args.count() != 2) {
setError(InvalidArguments);
setErrorString(tr("Invalid arguments in %0: %1 arguments given, 2 expected.").arg(name()).arg(args
.count()));
return false;
}
const QString filename = absoluteFileName();
const QString &values = args[1];
if (QFile::exists(filename) && !deleteFileNowOrLater(filename)) {
setError(UserDefinedError);
setErrorString(tr("Failed to overwrite %1").arg(filename));
return false;
}
QFile file(filename);
if(!file.open(QIODevice::WriteOnly)) {
setError(UserDefinedError);
setErrorString(tr("Could not write Desktop Entry at %1").arg(filename));
return false;
}
QFile::setPermissions(filename, QFile::ReadOwner | QFile::WriteOwner | QFile::ReadUser | QFile::ReadGroup
| QFile::ReadOther);
QTextStream stream(&file);
stream.setCodec("UTF-8");
stream << QLatin1String("[Desktop Entry]") << endl;
stream << QLatin1String("Encoding=UTF-8") << endl;
// Type=Application\nExec=qtcreator\nPath=...
const QStringList pairs = values.split(QLatin1Char('\n'));
for (QStringList::const_iterator it = pairs.begin(); it != pairs.end(); ++it)
stream << *it << endl;
return true;
}
bool CreateDesktopEntryOperation::undoOperation()
{
const QString filename = absoluteFileName();
// first remove the link
if (!deleteFileNowOrLater(filename)) {
setErrorString(QObject::tr("Could not delete file %1").arg(filename));
return false;
}
if (!hasValue(QLatin1String("backupOfExistingDesktopEntry")))
return true;
const QString backupOfExistingDesktopEntry = value(QLatin1String("backupOfExistingDesktopEntry")).toString();
const bool success = QFile::copy(backupOfExistingDesktopEntry, filename)
&& deleteFileNowOrLater(backupOfExistingDesktopEntry);
if (!success)
setErrorString(QObject::tr("Could not restore backup file into %1").arg(filename));
return success;
}
bool CreateDesktopEntryOperation::testOperation()
{
return true;
}
Operation *CreateDesktopEntryOperation::clone() const
{
return new CreateDesktopEntryOperation();
}
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