Delta packages

[Colin Percival]

Hi all,

On 05/14/14 09:17, Baptiste Daroussin wrote:
> On Wed, May 14, 2014 at 05:43:14AM -0400, Matthew Seaman wrote:
>> On 13/05/2014 16:21, Sean Fagan wrote:
>>> We have a strong desire to make delta packages -- that is, given 
>>> version A and version B of a package, to be able to download a package
>>> that has only the changes between A and B.

I have no opinion on delta packages except that they scare me and sound
like a very easy way to screw things up horribly.

What I'm interested in is package deltas -- given foo-1.0.0.txz and
foo-1.0.0-to-1.0.1.bsdiff, generate foo-1.0.1.txz.  In other words,
a way to speed up "download new packages", not a change to the upgrade
process (since having generated the new package, you would still be
uninstalling the old package and installing the new one).

-- 
Colin Percival
Security Officer Emeritus, FreeBSD | The power to serve
Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid