135 lines
3.9 KiB
C++
135 lines
3.9 KiB
C++
/***************************************************************************
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* Copyright (C) 2008 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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***************************************************************************/
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#include "util/externalcommand.h"
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#include "util/report.h"
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#include <QString>
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#include <QStringList>
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#include <klocale.h>
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#include <kdebug.h>
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#include <stdlib.h>
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/** Creates a new ExternalCommand instance without Report.
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@param cmd the command to run
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@param args the arguments to pass to the command
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*/
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ExternalCommand::ExternalCommand(const QString& cmd, const QStringList& args) :
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QProcess(),
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m_Report(NULL),
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m_Command(cmd),
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m_Args(args),
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m_ExitCode(-1),
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m_Output()
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{
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setup();
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}
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/** Creates a new ExternalCommand instance with Report.
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@param report the Report to write output to.
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@param cmd the command to run
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@param args the arguments to pass to the command
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*/
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ExternalCommand::ExternalCommand(Report& report, const QString& cmd, const QStringList& args) :
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QProcess(),
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m_Report(report.newChild()),
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m_Command(cmd),
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m_Args(args),
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m_ExitCode(-1),
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m_Output()
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{
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setup();
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}
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void ExternalCommand::setup()
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{
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setEnvironment(QStringList() << "LC_ALL=C" << QString("PATH=") + getenv("PATH"));
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setProcessChannelMode(MergedChannels);
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connect(this, SIGNAL(finished(int, QProcess::ExitStatus)), SLOT(onFinished(int)));
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connect(this, SIGNAL(readyReadStandardOutput()), SLOT(onReadOutput()));
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}
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/** Starts the external command.
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@param timeout timeout to wait for the process to start
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@return true on success
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*/
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bool ExternalCommand::start(int timeout)
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{
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QProcess::start(command(), args());
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if (report())
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report()->setCommand(i18nc("@info/plain", "Command: %1 %2", command(), args().join(" ")));
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if (!waitForStarted(timeout))
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{
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if (report())
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report()->line() << i18nc("@info/plain", "(Command timeout while starting)");
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return false;
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}
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return true;
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}
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/** Waits for the external command to finish.
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@param timeout timeout to wait until the process finishes.
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@return true on success
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*/
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bool ExternalCommand::waitFor(int timeout)
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{
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closeWriteChannel();
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if (!waitForFinished(timeout))
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{
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if (report())
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report()->line() << i18nc("@info/plain", "(Command timeout while running)");
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return false;
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}
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onReadOutput();
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return true;
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}
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/** Runs the command.
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@param timeout timeout to use for waiting when starting and when waiting for the process to finish
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@return true on success
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*/
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bool ExternalCommand::run(int timeout)
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{
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return start(timeout) && waitFor(timeout) && exitStatus() == 0;
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}
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void ExternalCommand::onReadOutput()
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{
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const QString s = QString(readAllStandardOutput());
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m_Output += s;
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if (report())
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*report() << s;
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}
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void ExternalCommand::onFinished(int exitCode)
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{
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setExitCode(exitCode);
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}
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