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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qbs.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms and
** conditions see http://www.qt.io/terms-conditions. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "settingscreator.h"
#include "fileinfo.h"
#include "hostosinfo.h"
#include <QDirIterator>
#include <QFileInfo>
#include <QSettings>
#include <QStringList>
namespace qbs {
namespace Internal {
static QSettings::Format format()
{
return HostOsInfo::isWindowsHost() ? QSettings::IniFormat : QSettings::NativeFormat;
}
SettingsCreator::SettingsCreator(const QString &baseDir)
: m_settingsBaseDir(baseDir), m_qbsVersion(Version::fromString(QLatin1String(QBS_VERSION)))
{
}
QSettings *SettingsCreator::getQSettings()
{
createQSettings();
migrate();
return m_settings.release();
}
void SettingsCreator::migrate()
{
if (!m_settings->allKeys().isEmpty()) // We already have settings for this qbs version.
return;
m_settings.reset();
// Find settings from highest qbs version lower than this one and copy all settings data.
const Version thePredecessor = predecessor();
QString oldSettingsDir = m_settingsBaseDir;
if (thePredecessor.isValid())
oldSettingsDir.append(QLatin1String("/qbs/")).append(thePredecessor.toString());
QString oldProfilesDir = oldSettingsDir;
if (!thePredecessor.isValid())
oldProfilesDir += QLatin1String("/qbs");
oldProfilesDir += QLatin1String("/profiles");
const QString newProfilesDir = m_newSettingsDir + QLatin1String("/profiles");
QString errorMessage;
if (QFileInfo(oldProfilesDir).exists()
&& !copyFileRecursion(oldProfilesDir, newProfilesDir, false, true, &errorMessage)) {
qWarning() << "Error in settings migration: " << errorMessage;
}
const QString oldSettingsFilePath = oldSettingsDir + QLatin1Char('/') + m_settingsFileName;
if (QFileInfo(oldSettingsFilePath).exists()
&& (!QDir::root().mkpath(m_newSettingsDir)
|| !QFile::copy(oldSettingsFilePath, m_newSettingsFilePath))) {
qWarning() << "Error in settings migration: Could not copy" << oldSettingsFilePath
<< "to" << m_newSettingsFilePath;
}
// Adapt all paths in settings that point to the old location. At the time of this writing,
// that's only preferences.qbsSearchPaths as written by libqtprofilesetup, but we don't want
// to hardcode that here.
m_settings.reset(new QSettings(m_newSettingsFilePath, format()));
foreach (const QString &key, m_settings->allKeys()) {
QVariant v = m_settings->value(key);
if (v.type() == QVariant::String) {
QString s = v.toString();
if (s.contains(oldProfilesDir))
m_settings->setValue(key, s.replace(oldProfilesDir, newProfilesDir));
} else if (v.type() == QVariant::StringList) {
const QStringList oldList = v.toStringList();
QStringList newList;
foreach (const QString &oldString, oldList) {
QString newString = oldString;
newList << newString.replace(oldProfilesDir, newProfilesDir);
}
if (newList != oldList)
m_settings->setValue(key, newList);
}
}
}
void SettingsCreator::createQSettings()
{
std::unique_ptr<QSettings> tmp(m_settingsBaseDir.isEmpty()
? new QSettings(format(), QSettings::UserScope, QLatin1String("QtProject"),
QLatin1String("qbs"))
: new QSettings(m_settingsBaseDir + QLatin1String("/qbs.conf"), format()));
const QFileInfo fi(tmp->fileName());
m_settingsBaseDir = fi.path();
m_newSettingsDir = m_settingsBaseDir + QLatin1String("/qbs/") + m_qbsVersion.toString();
m_settingsFileName = fi.fileName();
m_newSettingsFilePath = m_newSettingsDir + QLatin1Char('/') + m_settingsFileName;
m_settings.reset(new QSettings(m_newSettingsFilePath, tmp->format()));
}
Version SettingsCreator::predecessor() const
{
QDirIterator dit(m_settingsBaseDir + QLatin1String("/qbs"));
Version thePredecessor;
while (dit.hasNext()) {
dit.next();
const auto currentVersion = Version::fromString(dit.fileName());
if (currentVersion > thePredecessor && currentVersion < m_qbsVersion)
thePredecessor = currentVersion;
}
return thePredecessor;
}
} // namespace Internal
} // namespace qbs
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