Move ganga lb-dev lesson

[alexpearce]

The lesson “Using Ganga with local projects” should move to first-steps as we want to teach it then.

[alexpearce]

This will need a call-out added saying why we're using GaudiExec here, but DaVinci in the previous lessons. Should say that GaudiExec will become the default.

[mesmith75]

@alexpearce Yes that is a good idea.I think it would be good to change the previous lessons to GaudiExec as well.

[alexpearce]

We've discussed that. Right now the thing putting us off is having to create an (effectively empty) lb-dev project. We'll be teaching this part before lb-dev, so it might be confusing.

[mesmith75]

You don't need to.

j = Job()
myApp = prepareGaudiExec('DaVinci','v41r3')
myApp.optsFile = ['some/path/options.py']
j.application = myApp

The prepareGaudiExec function builds the standard released version for you.

[alexpearce]

Ah! Perfect. Yes, we should move to that then.

Does prepareGaudiExec create a temporary directory somewhere? Or will it be created wherever you ran ganga from?

[mesmith75]

It makes it in your cmtuser area.

[cmarinbe]

With #211 all the ganga lessons will be using GaudiExec, so we can move the lesson without loosing consistency.