[oe] git and dir

[Rolf Leggewie]

Hi,

this is something I've been pondering upon today.  I'm hoping for some 
discussion, an opportunity to learn and possibly to make OE even better.

It has always been possible to shoot yourself in the foot with OE.  I 
believe the opportunities will rise with the introduction of git.  The 
reason is that AFAIU, with mtn there was a 1:1 relation between checkout 
dir and upstream branch.  This information was recorded in _MTN/options. 
  git does not have this restriction.  One can freely add remote 
branches to an existing checkout with "git remote add" and switch to 
them with "git checkout $branch".  This can easily corrupt tmp/ and I 
fear it will happen quite often.  I wonder if there is anything 
OE/bitbake can do to alleviate the pain.

Regards

Rolf


PS: I am just thinking if it made sense to add the possibility to 
include the git branch name in TMPDIR just like we can include DISTRO 
now.  I think that would go a long way towards making problems to occur 
only seldomly if at all.