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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the qmake application of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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
** Alternatively, 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 have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/qdir.h>
#include <QtCore/qxmlstream.h>
#include "epocroot_p.h"
#include "../windows/registry_p.h"
QT_BEGIN_NAMESPACE
// Registry key under which the location of the Symbian devices.xml file is
// stored.
// Note that, on 64-bit machines, this key is located under the 32-bit
// compatibility key:
// HKEY_LOCAL_MACHINE\Software\Wow6432Node
#define SYMBIAN_SDKS_REG_SUBKEY "Software\\Symbian\\EPOC SDKs\\CommonPath"
#ifdef Q_OS_WIN32
# define SYMBIAN_SDKS_REG_HANDLE HKEY_LOCAL_MACHINE
#else
# define SYMBIAN_SDKS_REG_HANDLE 0
#endif
// Value which is populated and returned by the epocRoot() function.
// Stored as a static value in order to avoid unnecessary re-evaluation.
static QString epocRootValue;
static QString getDevicesXmlPath()
{
// Note that the following call will return a null string on platforms other
// than Windows. If support is required on other platforms for devices.xml,
// an alternative mechanism for retrieving the location of this file will
// be required.
return qt_readRegistryKey(SYMBIAN_SDKS_REG_HANDLE, QLatin1String(SYMBIAN_SDKS_REG_SUBKEY));
}
/**
* Checks whether epocRootValue points to an existent directory.
* If not, epocRootValue is set to an empty string and an error message is printed.
*/
static void checkEpocRootExists(const QString &source)
{
if (!epocRootValue.isEmpty()) {
QDir dir(epocRootValue);
if (!dir.exists()) {
qWarning("Warning: %s is set to an invalid path: '%s'", qPrintable(source),
qPrintable(epocRootValue));
epocRootValue = QString();
}
}
}
/**
* Translate path from Windows to Qt format.
*/
static void fixEpocRoot(QString &path)
{
path.replace(QLatin1Char('\\'), QLatin1Char('/'));
if (!path.size() || path[path.size()-1] != QLatin1Char('/')) {
path += QLatin1Char('/');
}
}
/**
* Determine the epoc root for the currently active SDK.
*/
QString qt_epocRoot()
{
if (epocRootValue.isEmpty()) {
// 1. If environment variable EPOCROOT is set and points to an existent
// directory, this is returned.
epocRootValue = QString::fromLocal8Bit(qgetenv("EPOCROOT").constData());
checkEpocRootExists(QLatin1String("EPOCROOT environment variable"));
if (epocRootValue.isEmpty()) {
// 2. The location of devices.xml is specified by a registry key. If this
// file exists, it is parsed.
QString devicesXmlPath = getDevicesXmlPath();
if (!devicesXmlPath.isEmpty()) {
devicesXmlPath += QLatin1String("/devices.xml");
QFile devicesFile(devicesXmlPath);
if (devicesFile.open(QIODevice::ReadOnly)) {
// 3. If the EPOCDEVICE environment variable is set and a corresponding
// entry is found in devices.xml, and its epocroot value points to an
// existent directory, it is returned.
// 4. If a device element marked as default is found in devices.xml and its
// epocroot value points to an existent directory, this is returned.
const QString epocDeviceValue = QString::fromLocal8Bit(qgetenv("EPOCDEVICE").constData());
bool epocDeviceFound = false;
QXmlStreamReader xml(&devicesFile);
while (!xml.atEnd()) {
xml.readNext();
if (xml.isStartElement() && xml.name() == QLatin1String("devices")) {
if (xml.attributes().value(QLatin1String("version")) == QLatin1String("1.0")) {
while (!(xml.isEndElement() && xml.name() == QLatin1String("devices")) && !xml.atEnd()) {
xml.readNext();
if (xml.isStartElement() && xml.name() == QLatin1String("device")) {
const bool isDefault = xml.attributes().value(QLatin1String("default")) == QLatin1String("yes");
const QString id = xml.attributes().value(QLatin1String("id")).toString();
const QString name = xml.attributes().value(QLatin1String("name")).toString();
const QString alias = xml.attributes().value(QLatin1String("alias")).toString();
bool epocDeviceMatch = QString(id + QLatin1String(":") + name) == epocDeviceValue;
if (!alias.isEmpty())
epocDeviceMatch |= alias == epocDeviceValue;
epocDeviceFound |= epocDeviceMatch;
if((epocDeviceValue.isEmpty() && isDefault) || epocDeviceMatch) {
// Found a matching device
while (!(xml.isEndElement() && xml.name() == QLatin1String("device")) && !xml.atEnd()) {
xml.readNext();
if (xml.isStartElement() && xml.name() == QLatin1String("epocroot")) {
epocRootValue = xml.readElementText();
const QString deviceSource = epocDeviceValue.isEmpty()
? QLatin1String("default device")
: QString(QLatin1String("EPOCDEVICE (") + epocDeviceValue + QLatin1String(")"));
checkEpocRootExists(deviceSource);
}
}
if (epocRootValue.isEmpty())
xml.raiseError(QLatin1String("No epocroot element found"));
}
}
}
} else {
xml.raiseError(QLatin1String("Invalid 'devices' element version"));
}
}
}
if (xml.hasError()) {
qWarning("Warning: Error \"%s\" when parsing devices.xml",
qPrintable(xml.errorString()));
} else {
if (epocRootValue.isEmpty()) {
if (!epocDeviceValue.isEmpty()) {
if (epocDeviceFound) {
qWarning("Warning: Missing or invalid epocroot attribute in device '%s' in devices.xml.",
qPrintable(epocDeviceValue));
} else {
qWarning("Warning: No device matching EPOCDEVICE (%s) in devices.xml.",
qPrintable(epocDeviceValue));
}
} else {
if (epocDeviceFound) {
qWarning("Warning: Missing or invalid epocroot attribute in default device in devices.xml.");
} else {
qWarning("Warning: No default device set in devices.xml.");
}
}
}
}
} else {
qWarning("Warning: Could not open file: '%s'.", qPrintable(devicesXmlPath));
}
}
}
if (epocRootValue.isEmpty()) {
// 5. An empty string is returned.
qWarning("Warning: failed to resolve epocroot."
#ifdef Q_OS_WIN32
"\nEither\n"
" 1. Set EPOCROOT environment variable to a valid value.\n"
" or 2. Ensure that the HKEY_LOCAL_MACHINE\\" SYMBIAN_SDKS_REG_SUBKEY
" registry key is set, and then\n"
" a. Set EPOCDEVICE environment variable to a valid device\n"
" or b. Specify a default device in the devices.xml file.");
#else
" Set EPOCROOT environment variable to a valid value.");
#endif
} else {
fixEpocRoot(epocRootValue);
}
}
return epocRootValue;
}
QT_END_NAMESPACE
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