[pacman-dev] [PATCH 1/1] support http header to indicate an expected failure

[Allan McRae]

On 2/6/21 12:28 am, Christian Hesse wrote:
> Christian Hesse <list at eworm.de> on Fri, 2021/05/28 17:55:
>> Allan McRae <allan at archlinux.org> on Fri, 2021/05/28 22:52:
>>>>> Does this
>>>>> mean the "new" database on the hosts network could be long out of date,
>>>>> but as long as it is newer than the local machine being updated, that
>>>>> is what will be used?    
>>>>
>>>> Well, out-of-date is a term that does barely match here... pacman does
>>>> known about the date of its current database files only. So yes, more
>>>> recent database files are used as long as they are newer than the local
>>>> ones - even if out-of-date compared with a mirror.
>>>>
>>>> That's why the pacredir documentation tells you to run `pacman -Sy`
>>>> twice to be sure: First run fetches the newest database from local
>>>> network, second run (where pacredir returns 404) fetches from mirror if
>>>> a newer version is available.    
>>>
>>> This does very little to convince me that the CacheServer proposal
>>> should be used for databases.  
>>
>> So let's implement CacheServer for package files only as described
>> in FS#23407.
>>
>> Apply my patch anyway to make pacman happy with pacredir. :)
> 
> Now that pacman 6.0.0 is in [core] we should have an idea of a solution at
> least. Given that a number of caching solutions exist [0] having the header
> solution around may be not the worst idea. So does this have a chance to be
> committed?
> 

Andrew already gave it a -1.  That means there is zero chance of it
being committed.

> Still the CacheServer directive for package files would not work with database
> files. Thus it would not be a real solution for use with pacredir.
> So would you accept a patch to disable the server error limit from
> configuration and command line switch? That would kind of resolve the
> issue but result in error messages still being thrown for me, however...
> Had hoped to get rid of that.

Going through other caching solutions, CacheServer ignoring missing
packages would solve most issues.  So I'll implement that when I have a
spare 30 minutes.

Once that is done pacredir can probably do "pacman -Sy; pacman -Sy;
pacman -Su" as a workaround until we handle dbs too.

Allan