Disable or listen to the runner logs

[lifenautjoe]

Expected behavior

I want to be able to disable or listen to the runner logs.

Actual behavior

All runner logs are written in the standard output as seen here

Enviroment Details

• Karma version: 3.8.6

Steps to reproduce the behaviour

1. Create and start a server

var server = new Server({
    configFile : karmaConfigFile
}, function(exitCode) {
    console.log('Karma has exited with ' + exitCode);
    process.exit(exitCode)
});
server.start();

1. On browsers_ready server event, trigger a run

server.on('browsers_ready',function () {
    runner.run({ configFile: karmaConfigFile});
});

1. See the run output on the console twice, as both the server and the runner print the output

PhantomJS 2.1.1 (Linux 0.0.0): Executed 0 of 1 SUCCESS (0 secs / 0 secs)
PhantomJS 2.1.1 (Linux 0.0.0): Executed 1 of 1 SUCCESS (0.036 secs / 0.001 secs)

Possible solutions

Implement as event

Preferred

var run = runner.run({ configFile: karmaConfigFile});

run.on('data',function(data){
  console.log(data);
});

Implement flag

runner.run({ configFile: karmaConfigFile, logs: false});

Notes

This might reflect another issue.
My logLevel is set to config.LOG_DISABLE in my karma configuration file. The server seems to not respect the flag when manually triggering the run.

[developit]

This behavior makes it really hard to wrap Karma in an overarching CLI, which is something you'll be seeing more and more over the next year.

[JakeChampion]

Also seeing this behaviour, if someone can point to what needs changing, I will give it a go :-)