Disable QML console.log() messages

Question

We are tunning the final release of our application, and we successfully disable the debug messages in c++.

CONFIG(release, debug|release):{
    message(Building in release mode. We deactivate the logs.)
    DEFINES += QT_NO_DEBUG_OUTPUT
} else {
    message(Building in debug mode.)
}

But, our QML javascript console.log() functions are still logging the information.

I also found this source that clearly states: The output is generated using the qDebug, qWarning, qCritical methods in C++ (see also Debugging Techniques).

What doesnt make much sense to me, since Im already ignoring all the qDebugs()

So, the question is: How to ignore all the console.log() ?

I just think it should be an easy task, similar to the qDebug() messages.

For any further information, please leave a comment.

Note: I know that the link is for Qt 5., but im using Qt 4.8.

Thanks in advance!

Answer 1

If QT_NO_DEBUG_OUTPUT successfully disables output from within Qt code, it should do the same for the C++ functions that implement console.log(). However, I believe that those feature macros are deliberately not auto-tested (too many macros, too few hardware resources to test them on), so any bug report would be closed, and you'd be encouraged to submit a patch yourself.

Another solution might be to use qInstallMessageHandler(), as mentioned in the answers to this question.

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Unfortunately this doesn't help you, but in Qt 5, it's enough to disable the logging rule with the QT_LOGGING_RULES environment variable:

QT_LOGGING_RULES=qml=false