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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