qtdeclarative/tools/shared/qqmltoolingsettings.cpp

149 lines
4.5 KiB
C++

/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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** $QT_END_LICENSE$
**
****************************************************************************/
#include "qqmltoolingsettings.h"
#include <algorithm>
#include <QtCore/qdebug.h>
#include <QtCore/qdir.h>
#include <QtCore/qfileinfo.h>
#include <QtCore/qset.h>
#include <QtCore/qsettings.h>
#include <QtCore/qstandardpaths.h>
void QQmlToolingSettings::addOption(const QString &name, QVariant defaultValue)
{
m_values[name] = defaultValue;
}
bool QQmlToolingSettings::read(const QString &settingsFilePath)
{
if (!QFileInfo::exists(settingsFilePath))
return false;
if (m_currentSettingsPath == settingsFilePath)
return true;
QSettings settings(settingsFilePath, QSettings::IniFormat);
for (const QString &key : settings.allKeys())
m_values[key] = settings.value(key).toString();
m_currentSettingsPath = settingsFilePath;
return true;
}
bool QQmlToolingSettings::writeDefaults() const
{
const QString path = QFileInfo(u".%1.ini"_qs.arg(m_toolName)).absoluteFilePath();
QSettings settings(path, QSettings::IniFormat);
for (auto it = m_values.constBegin(); it != m_values.constEnd(); ++it) {
settings.setValue(it.key(), it.value().isNull() ? QString() : it.value());
}
settings.sync();
if (settings.status() != QSettings::NoError) {
qWarning() << "Failed to write default settings to" << path
<< "Error:" << settings.status();
return false;
}
qInfo() << "Wrote default settings to" << path;
return true;
}
bool QQmlToolingSettings::search(const QString &path)
{
QFileInfo fileInfo(path);
QDir dir(fileInfo.isDir() ? path : fileInfo.dir());
QSet<QString> dirs;
const QString settingsFileName = u".%1.ini"_qs.arg(m_toolName);
while (dir.exists() && dir.isReadable()) {
const QString dirPath = dir.absolutePath();
if (m_seenDirectories.contains(dirPath)) {
const QString cachedIniPath = m_seenDirectories[dirPath];
if (cachedIniPath.isEmpty())
return false;
return read(cachedIniPath);
}
dirs << dirPath;
const QString iniFile = dir.absoluteFilePath(settingsFileName);
if (read(iniFile)) {
for (const QString &dir : qAsConst(dirs))
m_seenDirectories[dir] = iniFile;
return true;
}
if (!dir.cdUp())
break;
}
if (const QString iniFile = QStandardPaths::locate(QStandardPaths::GenericConfigLocation, u"%1.ini"_qs.arg(m_toolName)); !iniFile.isEmpty()) {
if (read(iniFile)) {
for (const QString &dir : qAsConst(dirs))
m_seenDirectories[dir] = iniFile;
return true;
}
}
// No INI file found anywhere, record the failure so we won't have to traverse the entire
// filesystem again
for (const QString &dir : qAsConst(dirs))
m_seenDirectories[dir] = QString();
return false;
}
QVariant QQmlToolingSettings::value(QString name) const
{
return m_values.value(name);
}
bool QQmlToolingSettings::isSet(QString name) const
{
if (!m_values.contains(name))
return false;
QVariant variant = m_values[name];
// Unset is encoded as an empty string
return !(variant.canConvert(QMetaType(QMetaType::QString)) && variant.toString().isEmpty());
}