Re: [PATCH v2 2/2] cat-file: add --batch-command mode

[Jonathan Tan <jonathantanmy@google.com>]

Junio C Hamano <gitster@pobox.com> writes:
> I agree that it would be ideal to have just one way generic and
> extensible enough.  I do not know if there are much difference in
> that area between the two approaches, though.  The RFC I saw did
> look more complex and rigidly specified with framing and such, but
> that is only the syntax part---in the way in which interaction
> between two processes happen, I didn't quite see fundamental
> differences.  I'd expect it wouldn't be too much trouble to add new
> commands to code written using either approach (although I haven't
> seen yours yet ;-).
> 
> Thanks.

It is similar to this approach, except:
 - the approach I sent out uses pkt-line, which might be difficult to
   retrofit to cat-file if we need it
 - in the future, we want the Git side to be able to initiate requests
 - (possibly minor) it may be confusing if we add functionality to
   cat-file that is not about reading objects

Other than that, yes, they are similar.