Re: Can DATABASE_URL also be read from toaster.conf

[Richard Purdie <richard.purdie@linuxfoundation.org>]

On Tue, 2014-06-03 at 14:09 +0100, Damian, Alexandru wrote:
> Hello,
> 
> I'm sorry for the late reply - I'm not sure how I didn't see this mail
> until now.
> 
> 
> About having the DATABASE_URL in toaster.conf, I feel that this would
> break the separation between core bitbake and Django environments -
> toaster.conf is designed to be read and used by the bitbake core. 
> 
> As such, changing the value of this variable in toaster.conf will
> invalidate task signatures and caches of tasks, even if the value
> itself is irrelevant to the build task execution processes. This is
> likely to confuse users and trigger problems with cache reuse. More
> code would need to be added to bitbake to make this variable
> transparent to the build process.

Changing an incidental variable like this will trigger reparses and will
invalidate some caches but the task signatures themselves wouldn't
change due to it since they have no dependency on the variable.

I make no comment on whether its a good/bad idea, just want to ensure we
base the decisions on the right data.

Cheers,

Richard