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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.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 info@qt.nokia.com.
**
**************************************************************************/
#include "perforcechecker.h"
#include <utils/qtcassert.h>
#include <utils/synchronousprocess.h>
#include <QtCore/QRegExp>
#include <QtCore/QTimer>
#include <QtCore/QFileInfo>
#include <QtCore/QDir>
#include <QtGui/QApplication>
#include <QtGui/QCursor>
namespace Perforce {
namespace Internal {
PerforceChecker::PerforceChecker(QObject *parent) :
QObject(parent),
m_timeOutMS(-1),
m_timedOut(false),
m_useOverideCursor(false),
m_isOverrideCursor(false)
{
connect(&m_process, SIGNAL(error(QProcess::ProcessError)),
this, SLOT(slotError(QProcess::ProcessError)));
connect(&m_process, SIGNAL(finished(int,QProcess::ExitStatus)),
this, SLOT(slotFinished(int,QProcess::ExitStatus)));
}
PerforceChecker::~PerforceChecker()
{
m_process.kill();
m_process.waitForFinished();
resetOverrideCursor();
}
bool PerforceChecker::isRunning() const
{
return m_process.state() == QProcess::Running;
}
void PerforceChecker::resetOverrideCursor()
{
if (m_isOverrideCursor) {
QApplication::restoreOverrideCursor();
m_isOverrideCursor = false;
}
}
void PerforceChecker::start(const QString &binary,
const QStringList &basicArgs,
int timeoutMS)
{
if (isRunning()) {
emitFailed(QLatin1String("Internal error: process still running"));
return;
}
if (binary.isEmpty()) {
emitFailed(tr("No executable specified"));
return;
}
m_binary = binary;
QStringList args = basicArgs;
args << QLatin1String("client") << QLatin1String("-o");
m_process.start(m_binary, args);
m_process.closeWriteChannel();
// Timeout handling
m_timeOutMS = timeoutMS;
m_timedOut = false;
if (timeoutMS > 0)
QTimer::singleShot(m_timeOutMS, this, SLOT(slotTimeOut()));
// Cursor
if (m_useOverideCursor) {
m_isOverrideCursor = true;
QApplication::setOverrideCursor(QCursor(Qt::BusyCursor));
}
}
void PerforceChecker::slotTimeOut()
{
if (!isRunning())
return;
m_timedOut = true;
Utils::SynchronousProcess::stopProcess(m_process);
emitFailed(tr("\"%1\" timed out after %2ms.").
arg(m_binary).arg(m_timeOutMS));
}
void PerforceChecker::slotError(QProcess::ProcessError error)
{
if (m_timedOut)
return;
switch (error) {
case QProcess::FailedToStart:
emitFailed(tr("Unable to launch \"%1\": %2").
arg(QDir::toNativeSeparators(m_binary), m_process.errorString()));
break;
case QProcess::Crashed: // Handled elsewhere
case QProcess::Timedout:
break;
case QProcess::ReadError:
case QProcess::WriteError:
case QProcess::UnknownError:
Utils::SynchronousProcess::stopProcess(m_process);
break;
}
}
void PerforceChecker::slotFinished(int exitCode, QProcess::ExitStatus exitStatus)
{
if (m_timedOut)
return;
switch (exitStatus) {
case QProcess::CrashExit:
emitFailed(tr("\"%1\" crashed.").arg(QDir::toNativeSeparators(m_binary)));
break;
case QProcess::NormalExit:
if (exitCode) {
const QString stdErr = QString::fromLocal8Bit(m_process.readAllStandardError());
emitFailed(tr("\"%1\" terminated with exit code %2: %3").
arg(QDir::toNativeSeparators(m_binary)).arg(exitCode).arg(stdErr));
} else {
parseOutput(QString::fromLocal8Bit(m_process.readAllStandardOutput()));
}
break;
}
}
// Parse p4 client output for the top level
static inline QString clientRootFromOutput(const QString &in)
{
QRegExp regExp(QLatin1String("(\\n|\\r\\n|\\r)Root:\\s*(.*)(\\n|\\r\\n|\\r)"));
QTC_ASSERT(regExp.isValid(), return QString());
regExp.setMinimal(true);
// Normalize slashes and capitalization of Windows drive letters for caching.
if (regExp.indexIn(in) != -1)
return QFileInfo(regExp.cap(2).trimmed()).absoluteFilePath();
return QString();
}
void PerforceChecker::parseOutput(const QString &response)
{
if (!response.contains(QLatin1String("View:")) && !response.contains(QLatin1String("//depot/"))) {
emitFailed(tr("The client does not seem to contain any mapped files."));
return;
}
const QString repositoryRoot = clientRootFromOutput(response);
if (repositoryRoot.isEmpty()) {
//: Unable to determine root of the p4 client installation
emitFailed(tr("Unable to determine the client root."));
return;
}
// Check existence. No precise check here, might be a symlink
const QFileInfo fi(repositoryRoot);
if (fi.exists()) {
emitSucceeded(repositoryRoot);
} else {
emitFailed(tr("The repository \"%1\" does not exist.").
arg(QDir::toNativeSeparators(repositoryRoot)));
}
}
void PerforceChecker::emitFailed(const QString &m)
{
resetOverrideCursor();
emit failed(m);
}
void PerforceChecker::emitSucceeded(const QString &m)
{
resetOverrideCursor();
emit succeeded(m);
}
bool PerforceChecker::useOverideCursor() const
{
return m_useOverideCursor;
}
void PerforceChecker::setUseOverideCursor(bool v)
{
m_useOverideCursor = v;
}
}
}
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