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/*
  command.cpp
*/

#include <QProcess>

#include "command.h"

QT_BEGIN_NAMESPACE

void executeCommand(const Location& location,
                    const QString& format,
                    const QStringList& args)
{
    QString actualCommand;
    for (int i = 0; i < (int) format.length(); i++) {
	int ch = format[i].unicode();
	if (ch > 0 && ch < 8) {
	    actualCommand += args[ch - 1];
	}
        else {
	    actualCommand += format[i];
	}
    }

    QString toolName = actualCommand;
    int space = toolName.indexOf(QLatin1Char(' '));
    if (space != -1)
	toolName.truncate(space);

    QProcess process;
    process.start(QLatin1String("sh"),
        QStringList() << QLatin1String("-c") << actualCommand);
    process.waitForFinished();

    if (process.exitCode() == 127)
	location.fatal(tr("Couldn't launch the '%1' tool")
                       .arg(toolName),
                       tr("Make sure the tool is installed and in the"
                          " path."));

    QString errors = QString::fromLocal8Bit(process.readAllStandardError());
    while (errors.endsWith(QLatin1Char('\n')))
        errors.truncate(errors.length() - 1);
    if (!errors.isEmpty())
	location.fatal(tr("The '%1' tool encountered some problems")
                       .arg(toolName),
                       tr("The tool was invoked like this:\n%1\n"
                          "It emitted these errors:\n%2")
                       .arg(actualCommand).arg(errors));
}

QT_END_NAMESPACE
