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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/
#ifndef ABSTRACTPROCESSSTEP_H
#define ABSTRACTPROCESSSTEP_H
#include "buildstep.h"
#include "environment.h"
#include <QtCore/QString>
#include <QtCore/QProcess>
QT_BEGIN_NAMESPACE
class QEventLoop;
class QTimer;
QT_END_NAMESPACE
namespace ProjectExplorer {
class IOutputParser;
/*!
AbstractProcessStep is a convenience class, which can be used as a base class instead of BuildStep.
It should be used as a base class if your buildstep just needs to run a process.
Usage:
Use setCommand(), setArguments(), setWorkingDirectory() to specify the process you want to run
(you need to do that before calling AbstractProcessStep::init()).
Inside YourBuildStep::init() call AbstractProcessStep::init().
Inside YourBuildStep::run() call AbstractProcessStep::run(), which automatically starts the proces
and by default adds the output on stdOut and stdErr to the OutputWindow.
If you need to process the process output override stdOut() and/or stdErr.
The two functions processStarted() and processFinished() are called after starting/finishing the process.
By default they add a message to the output window.
Use setEnabled() to control whether the BuildStep needs to run. (A disabled BuildStep immediately returns true,
from the run function.)
*/
class PROJECTEXPLORER_EXPORT AbstractProcessStep : public BuildStep
{
Q_OBJECT
public:
virtual ~AbstractProcessStep();
/// reimplemented from BuildStep::init()
/// You need to call this from YourBuildStep::init()
virtual bool init();
/// reimplemented from BuildStep::init()
/// You need to call this from YourBuildStep::run()
virtual void run(QFutureInterface<bool> &);
virtual BuildStepConfigWidget *createConfigWidget() = 0;
virtual bool immutable() const = 0;
/// setCommand() sets the executable to run in the \p buildConfiguration
/// should be called from init()
void setCommand(const QString &cmd);
/// sets the workingDirectory for the process for a buildConfiguration
/// should be called from init()
void setWorkingDirectory(const QString &workingDirectory);
/// sets the command line arguments used by the process for a \p buildConfiguration
/// should be called from init()
void setArguments(const QStringList &arguments);
/// enables or disables a BuildStep
/// Disabled BuildSteps immediately return true from their run method
/// should be called from init()
void setEnabled(bool b);
/// If ignoreReturnValue is set to true, then the abstractprocess step will
/// return success even if the return value indicates otherwise
/// should be called from init
void setIgnoreReturnValue(bool b);
/// Set the Environment for running the command
/// should be called from init()
void setEnvironment(Environment env);
QString workingDirectory() const;
// derived classes needs to call this function
/// Delete all existing output parsers and start a new chain with the
/// given parser.
void setOutputParser(ProjectExplorer::IOutputParser *parser);
/// Append the given output parser to the existing chain of parsers.
void appendOutputParser(ProjectExplorer::IOutputParser *parser);
ProjectExplorer::IOutputParser *outputParser() const;
protected:
AbstractProcessStep(BuildStepList *bsl, const QString &id);
AbstractProcessStep(BuildStepList *bsl, AbstractProcessStep *bs);
/// Called after the process is started
/// the default implementation adds a process started message to the output message
virtual void processStarted();
/// Called after the process Finished
/// the default implementation adds a line to the output window
virtual void processFinished(int exitCode, QProcess::ExitStatus status);
/// Called if the process could not be started,
/// by default adds a message to the output window
virtual void processStartupFailed();
/// Called to test whether a prcess succeeded or not.
virtual bool processSucceeded(int exitCode, QProcess::ExitStatus status);
/// Called for each line of output on stdOut()
/// the default implementation adds the line to the
/// application output window
virtual void stdOutput(const QString &line);
/// Called for each line of output on StdErrror()
/// the default implementation adds the line to the
/// application output window
virtual void stdError(const QString &line);
private slots:
void processReadyReadStdOutput();
void processReadyReadStdError();
void slotProcessFinished(int, QProcess::ExitStatus);
void checkForCancel();
void taskAdded(const ProjectExplorer::Task &task);
void outputAdded(const QString &string, ProjectExplorer::BuildStep::OutputFormat format);
private:
QTimer *m_timer;
QFutureInterface<bool> *m_futureInterface;
QString m_workingDirectory;
QString m_command;
QStringList m_arguments;
bool m_enabled;
bool m_ignoreReturnValue;
QProcess *m_process;
QEventLoop *m_eventLoop;
ProjectExplorer::Environment m_environment;
ProjectExplorer::IOutputParser *m_outputParserChain;
};
} // namespace ProjectExplorer
#endif // ABSTRACTPROCESSSTEP_H
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