[pacman-dev] [PATCH 3/5] repo-add : rework of delta support

[Brendan Hide]

Xavier wrote:
> On Thu, Feb 26, 2009 at 4:11 AM, Allan McRae <allan at archlinux.org> wrote:
>   
>> One comment that is moderately related to this.  Should there be a mechanism
>> to inspect the deltas are remove the ones that are no longer necessary?
>>  I.e. deltas with a broken chain, deltas who chain download will be bigger
>> than the package.  Should that be a job of repo-add when adding a new delta
>> or a separate script?
>>     
> I don't know, that seems neat but maybe too much complexity, I am not
> sure. Finding out how deltas could/should be managed has always been a
> big issue to me, how/when they are added, how/when they are removed.
>   
Hi Guys

I was just getting into understanding the code to see what I could do to 
get this going myself. Thank you, Xavier - I think it would have taken 
me a week or 2 to put all this together and likely not nearly good 
enough for Allan to be saying mostly good things about it. ;)

Now that you mentioned it, other than broken chains and deltas bigger 
than "deltaless" downloads, what other criteria are there for delta 
removal? I can only think of disk space - though this is not likely to 
be an issue. Also on that note, other than this new code breaking the 
chain, how would a chain be broken?