Re: [gentoo-portage-dev] [PATCH] postsync: skip hooks and metadata-transfer when appropriate (bug 564988)

[Zac Medico <zmedico@gentoo.org>]

On 11/06/2015 12:20 AM, Alexander Berntsen wrote:
> On 06/11/15 09:05, Michał Górny wrote:
>>>> I know nothing about the egencache stuff. Maybe Michał can
>>>> comment?
>> Michał finds this black magic. Trusts zmedico.
> I think it looks like it's probably supposed to be reasonable, perhaps.
> 
> Maybe Brian can look at it. At least that way we'll have a lot of
> people that attempted understanding what's going on.
> 
> Maybe we need a "Trusted-by:" line.
> 

Maybe it helps if I give some more context. At my workplace, we have
lots of scripts that call `emerge --sync private-work-repo` to ensure
that the current system has the latest changes from private-work-repo.
It can be annoying if it spends the bulk of its time calling hooks, even
though private-work-repo was already up-to-date:

>>> Timestamps on the server and in the local repository are the same.
>>> Cancelling all further sync action. You are already up to date.

So, we want to skip the hooks when repos are already up-to-date. In this
case, there's no point in calling hooks or updating the metadata cache.
-- 
Thanks,
Zac