1 files changed, 233 insertions, 0 deletions
diff --git a/src/libs/installer/qtpatch.cpp b/src/libs/installer/qtpatch.cpp
new file mode 100644
index 000000000..bff86506a
--- /dev/null
+++ b/src/libs/installer/qtpatch.cpp
@@ -0,0 +1,233 @@
+/**************************************************************************
+**
+** This file is part of Installer Framework
+**
+** Copyright (c) 2011-2012 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+**
+** 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.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**************************************************************************/
+
+#include "qtpatch.h"
+
+#include <QString>
+#include <QStringList>
+#include <QFileInfo>
+#include <QProcess>
+#include <QTextStream>
+#include <QVector>
+#include <QTime>
+#include <QtCore/QDebug>
+#include <QCoreApplication>
+#include <QByteArrayMatcher>
+
+#ifdef Q_OS_WIN
+#include <windows.h> // for Sleep
+#endif
+#ifdef Q_OS_UNIX
+#include <errno.h>
+#include <signal.h>
+#include <time.h>
+#endif
+
+static void sleepCopiedFromQTest(int ms)
+{
+    if (ms < 0)
+        return;
+#ifdef Q_OS_WIN
+    Sleep(uint(ms));
+#else
+    struct timespec ts = { ms / 1000, (ms % 1000) * 1000 * 1000 };
+    nanosleep(&ts, NULL);
+#endif
+}
+
+static void uiDetachedWait(int ms)
+{
+    QTime timer;
+    timer.start();
+    do {
+        QCoreApplication::processEvents(QEventLoop::AllEvents, ms);
+        sleepCopiedFromQTest(10);
+    } while (timer.elapsed() < ms);
+}
+
+QHash<QString, QByteArray> QtPatch::qmakeValues(const QString &qmakePath, QByteArray *qmakeOutput)
+{
+    QHash<QString, QByteArray> qmakeValueHash;
+
+    // in some cases qmake is not runable, because another process is blocking it(filewatcher ...)
+    int waitCount = 0;
+    while (qmakeValueHash.isEmpty() && waitCount < 60) {
+        QFileInfo qmake(qmakePath);
+
+        if (!qmake.exists()) {
+            qmakeOutput->append(QString::fromLatin1("%1 is not existing").arg(qmakePath));
+            return qmakeValueHash;
+        }
+        if (!qmake.isExecutable()) {
+            qmakeOutput->append(QString::fromLatin1("%1 is not executable").arg(qmakePath));
+            return qmakeValueHash;
+        }
+
+        QStringList args;
+        args << QLatin1String("-query");
+
+        QProcess process;
+        process.start(qmake.absoluteFilePath(), args, QIODevice::ReadOnly);
+        if (process.waitForFinished(2000)) {
+            if (process.exitStatus() == QProcess::CrashExit) {
+                qDebug() << qmakePath << "was crashed";
+                return qmakeValueHash;
+            }
+            QByteArray output = process.readAllStandardOutput();
+            qmakeOutput->append(output);
+            QTextStream stream(&output);
+            while (!stream.atEnd()) {
+                const QString line = stream.readLine();
+                const int index = line.indexOf(QLatin1Char(':'));
+                if (index != -1) {
+                    QString value = line.mid(index+1);
+                    if (value != QLatin1String("**Unknown**") )
+                        qmakeValueHash.insert(line.left(index), value.toUtf8());
+                }
+            }
+        }
+        if (qmakeValueHash.isEmpty()) {
+            ++waitCount;
+            static const int waitTimeInMilliSeconds = 500;
+            uiDetachedWait(waitTimeInMilliSeconds);
+        }
+        if (process.state() > QProcess::NotRunning ) {
+            qDebug() << "qmake process is still running, need to kill it.";
+            process.kill();
+        }
+
+    }
+    if (qmakeValueHash.isEmpty())
+        qDebug() << "Can't get any query output from qmake.";
+    return qmakeValueHash;
+}
+
+bool QtPatch::patchBinaryFile(const QString &fileName,
+                              const QByteArray &oldQtPath,
+                              const QByteArray &newQtPath)
+{
+    QFile file(fileName);
+    if (!file.exists()) {
+        qDebug() << "qpatch: warning: file" << fileName << "not found";
+        return false;
+    }
+
+    openFileForPatching(&file);
+    if (!file.isOpen()) {
+        qDebug() << "qpatch: warning: file" << qPrintable(fileName) << "can not open.";
+        qDebug() << qPrintable(file.errorString());
+        return false;
+    }
+
+    bool isPatched = patchBinaryFile(&file, oldQtPath, newQtPath);
+
+    file.close();
+    return isPatched;
+}
+
+// device must be open
+bool QtPatch::patchBinaryFile(QIODevice *device,
+                              const QByteArray &oldQtPath,
+                              const QByteArray &newQtPath)
+{
+    if (!(device->openMode() == QIODevice::ReadWrite)) {
+        qDebug() << "qpatch: warning: This function needs an open device for writing.";
+        return false;
+    }
+    const QByteArray source = device->readAll();
+    device->seek(0);
+
+    int offset = 0;
+    QByteArray overwritePath(newQtPath);
+    if (overwritePath.size() < oldQtPath.size()) {
+        QByteArray fillByteArray(oldQtPath.size() - overwritePath.size(), '\0');
+        overwritePath.append(fillByteArray);
+    }
+
+    QByteArrayMatcher byteArrayMatcher(oldQtPath);
+    forever {
+        offset = byteArrayMatcher.indexIn(source, offset);
+        if (offset == -1)
+            break;
+        device->seek(offset);
+        device->write(overwritePath);
+        offset += overwritePath.size();
+    }
+    device->seek(0); //for next reading we should be at the beginning
+    return true;
+}
+
+bool QtPatch::patchTextFile(const QString &fileName,
+                            const QHash<QByteArray, QByteArray> &searchReplacePairs)
+{
+    QFile file(fileName);
+
+    if (!file.open(QFile::ReadOnly)) {
+        qDebug() << QString::fromLatin1("qpatch: warning: Open the file '%1' stopped: %2").arg(
+            fileName, file.errorString());
+        return false;
+    }
+
+    QByteArray source = file.readAll();
+    file.close();
+
+    QHashIterator<QByteArray, QByteArray> it(searchReplacePairs);
+    while (it.hasNext()) {
+        it.next();
+        source.replace(it.key(), it.value());
+    }
+
+    if (!file.open(QFile::WriteOnly | QFile::Truncate)) {
+        qDebug() << QString::fromLatin1("qpatch: error: file '%1' not writable").arg(fileName);
+        return false;
+    }
+
+    file.write(source);
+    return true;
+}
+
+bool QtPatch::openFileForPatching(QFile *file)
+{
+    if (file->openMode() == QIODevice::NotOpen) {
+        // in some cases the file can not open, because another process is blocking it(filewatcher ...)
+        int waitCount = 0;
+        while (!file->open(QFile::ReadWrite) && waitCount < 60) {
+            ++waitCount;
+            static const int waitTimeInMilliSeconds = 500;
+            uiDetachedWait(waitTimeInMilliSeconds);
+        }
+        return file->openMode() == QFile::ReadWrite;
+    }
+    qDebug() << QString::fromLatin1("qpatch: error: File '%1 is open, so it can not open it again.").arg(
+        file->fileName());
+    return false;
+}