[OE-core] Using external source trees with OE-Core

[Rich Pixley]

On 2/24/12 04:55 , Richard Purdie wrote:
> Someone recently asked me about using external source trees with
> OE-Core. [...]
> Opinions on including this class?
I see value.

Our workflow, (based on an ancient branch of oe), uses something 
similar.  When working on a component in context, (as distinct from 
standalone), the developer sets S to point to his own directory and then 
just avoids the tasks with awkward side effects like clean and mrproper.

We had problems initially with people committing bb files with S still 
pointed to the local values.  There needs to be a safety catch for this 
somewhere as this mistake is too easy to make and affects everyone when 
it happens.

Against my better judgment, someone locally implemented a ~/oe.conf 
arrangement that developers now use to override S for the components in 
which they work.  That seems to have largely addressed the problem of 
accidental commits of bb files with bad S values, but has opened a 
completely different set of problems, of course.  I don't think this is 
the right solution to the accidental commit problem, but I think some 
sanity check or "best practice" for overriding S is required before 
including this class.

--rich