[petsc-dev] Updating MOAB version during download

[Satish Balay]

On Mon, 16 Jun 2014, Satish Balay wrote:

> > 
> >    Jed has pointed out that a “branch” is not enough information, so what should we use in the xxx.py so that the correct thing is built when I build PETSc with a particular branch??? 
> 
> commit-id, tag.
> 
> Branch is also a 'tag' but its a moving tag - [with non-reproduceable
> state].  I think this is Jed's objection. [and mine as well [wrt
> gitcommit=master-head]

one additional note: 'branch-name' and 'tag' can be deleted. 

And 'commit-id' can get garbage collected if the corresponding feature
branch (is deleted and) doesn't get merged into one of the 'live
branches'.

[so baranches are not permanant - so are tags, and some commit-ids]

Satish