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/***************************************************************************
* Copyright (C) 2008, 2009, 2010, 2011, 2014 *
* by Glad Deschrijver <glad.deschrijver@gmail.com> *
* *
* This program 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 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 this program; if not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#include "tempdir.h"
#include <QtCore/QDir>
#ifdef KTIKZ_USE_KDE
#include <KComponentData>
#include <KStandardDirs>
#include <KTempDir>
TempDir::TempDir(const QString &directoryPrefix, int mode)
: KTempDir(directoryPrefix, mode)
{
setAutoRemove(true);
}
const QString TempDir::location() const
{
const QString tempDirBase = KStandardDirs::locateLocal("tmp", KGlobal::mainComponent().componentName());
const int end = tempDirBase.lastIndexOf(QLatin1Char('/'));
return tempDirBase.mid(0, end);
}
#else
#include <QtCore/QFileInfo>
#include <QtCore/QTemporaryFile>
/*!
* Creates a temporary directory with the name:
* \p \<directoryPrefix\>\<six letters\>
*
* In the KDE version the default \p directoryPrefix is "$KDEHOME/tmp-$HOST/appname", i.e.
* as returned by KStandardDirs::locateLocal("tmp", KGlobal::mainComponent().componentName())
* In the Qt-only version the default is QDir::tempPath() + "/qtikz"
*
* @param directoryPrefix the prefix of the file name, or
* QString() for the default value
* @param mode the file permissions,
* almost always in octal. The first digit selects permissions for
* the user who owns the file: read (4), write (2), and execute
* (1); the second selects permissions for other users in the
* file's group, with the same values; and the third for other
* users not in the file's group, with the same values.
*/
TempDir::TempDir(const QString &directoryPrefix, int mode)
{
Q_UNUSED(mode);
// use QTemporaryFile to obtain a unique name
const QString dirPrefix = (directoryPrefix.isEmpty() ? QDir::tempPath() + QLatin1String("/qtikz") : directoryPrefix);
QTemporaryFile *tempFile = new QTemporaryFile(dirPrefix + QLatin1String("XXXXXX"));
if (tempFile->open())
{
const QFileInfo tempFileInfo = QFileInfo(*tempFile);
m_name = tempFileInfo.absolutePath() + QLatin1Char('/') + tempFileInfo.completeBaseName();
}
else
qCritical("Error: could not create temporary directory");
delete tempFile; // this also deletes the file on disk, so the creation of a directory with the same name below can be done successfully
// we have a unique name, let's create the directory
QDir tempDir(m_name);
const QString dirName = tempDir.dirName();
if (!tempDir.cdUp() || !tempDir.mkdir(dirName)) // by construction, QDir::temp() is the parent of tempDir
m_name.clear();
}
TempDir::~TempDir()
{
// removing all temporary files
qDebug("removing temporary files");
if (!cleanUp())
{
qCritical("Error: removing temporary files failed");
return;
}
// remove temp dir if empty
QDir tempDir(m_name);
if (tempDir.exists())
{
const QString dirName = tempDir.dirName();
if (!tempDir.cdUp() || !tempDir.rmdir(dirName))
qCritical("Error: removing temporary directory failed");
}
}
/*!
* This function returns the path of the directory in which the temporary
* directory of this program is (attempted to be) created. Usually this is
* the system's temporary directory. If the creation of the temporary
* directory of this application fails, the function name() will return an
* empty QString(), so this function can be used to inform
* the user about the location in which the temporary directory should have
* been created.
* \return the name of the system's temporary directory
*/
const QString TempDir::location() const
{
return QDir::tempPath();
}
/*!
* This function returns the full path and name of the temporary directory.
* \return the name of the temporary directory, or QString() if creating the directory has failed
*/
const QString TempDir::name() const
{
return m_name;
}
#endif
/*!
* Removes all files in the temporary directory.
*/
bool TempDir::cleanUp()
{
const QString dirName = name();
if (dirName.isEmpty()) // we must return in this case, otherwise in the QDir constructor below, the program's working directory is used and we really don't want to remove the files in that
return false;
QDir tempDir(dirName);
if (!tempDir.exists())
return false;
bool success = true;
const QStringList fileList = tempDir.entryList(QDir::NoDotAndDotDot | QDir::AllEntries);
Q_FOREACH (const QString &fileName, fileList)
success = success && tempDir.remove(fileName);
return success;
}
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