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From sebb <seb...@gmail.com>
Subject Re: Redirects for attic project download directories
Date Sun, 18 Feb 2018 18:35:40 GMT
On 18 February 2018 at 16:10, Henk P. Penning <penning@uu.nl> wrote:
> On Sat, 17 Feb 2018, sebb wrote:
>
>> Date: Sat, 17 Feb 2018 19:45:56 +0100
>> From: sebb <sebbaz@gmail.com>
>> To: general@attic.apache.org
>> Subject: Re: Redirects for attic project download directories
>>
>> On 16 February 2018 at 16:53, Henk P. Penning <penning@uu.nl> wrote:
>>>
>>> On Thu, 15 Feb 2018, sebb wrote:
>
>
>>>> It would be useful to be able to tidy this up.
>
>
>>>   Links to mirrors are typically generated by closer.lua ;
>>>   we can make closer.lua attic-aware (says humbedooh :-).
>>>   When closer.lua encounters a target in an atticked project,
>>>   it can redirect to attic.a.o.
>>
>>
>> Good idea as it will stop further generation of useless URLs.
>
>
>   This now in test on mirror-vm ; try
>
>     https://mirror-vm.apache.org/dyn/dev_closer.lua/
>     https://mirror-vm.apache.org/dyn/dev_closer.lua/beehive/blib/blob
>
>   Aside: dev_closer.lua is also 'dist' and 'archive' aware ; try
>
>     https://mirror-vm.apache.org/dyn/dev_closer.lua/FOO/BAR
>     https://mirror-vm.apache.org/dyn/dev_closer.lua/httpd/apache_1.3.0.tar.Z
>
>>>   Now, suppose we create dist/attic/ghosts/
>>>
>>>     https:// dist.apache.org/repos/dist/release/attic/ghosts/
>>>
>>>   -- on retirement, infra svn moves dist/GHOST/ to dist/attic/ghosts/ ;
>>>      Pmc Attic can cleanup what was formerly dist/GHOST/
>>
>>
>> Unless the archive synch job is changed to ignore files under
>> dist/attic/ghosts this will result in creating copies of the release
>> artifacts on archive.a.o
>
>
>   That's a detail

Yes, I know. But details matter.

> ; the point is that /we/ can cleanup ;
>   less work for infra ; more control for us.
>
>>>   -- closer.lua can check the presence of dist/attic/ghosts/PROJ
>>>   -- the RewriteRules idem
>>>
>>>   I think this would tidy up /dist/ while keeping the proper Redirects.
>>
>>
>> It won't keep the redirects on the 3rd party mirrors.
>> Such URLs may well have been stored elsewhere.
>>
>> For example [1] points to (e.g.)
>>
>> http://mirror.org/apache/harmony/milestones/5.0/M15/apache-harmony-5.0-jre-r991518-windows-x86-snapshot.zip
>
>
>> At present such a URL will redirect back to the attic (try it!)
>> That is the functionality which I think is important to preserve.
>
>
>   When the new closer.lua is in place, [1] will point directly
>   to attic.a.o/projects/harmony.html ;
>   Are there any other examples of important pages ?
>
>> That is not true for 3rd party mirrors ...
>
>
>   Any link to a specific file on a specific mirror will stop working
>   sooner or later ; mirrors disappear and /dist/ changes.
>
>     LIVE-link  : http://some.mirror.org/.../httpd/some-old-version.gz
>     GHOST-link : http://some.mirror.org/.../beehive/some-old-version.gz
>
>   The LIVE-link gives a 404 ; the GHOST-link gives a redirect.
>   Why the difference?

The difference is that the parent directory still exists for active
projects even if a particular version does not.

>   On retirement we remove GHOSTS from committee-info.txt and
>   navigation [http://www.apache.org/#projects-list], etc.
>   In short, we have pointers to GHOSTs, but not among the living ;
>   and that should also be the case for /dist/ (and the mirrors).

But we keep ghost.apache.org.

>>>> [1] http://harmony.apache.org/download.cgi
>
>
>   Groeten,
>
>   HPP
>
>
> ------------------------------------------------------------   _
> Henk P. Penning, ICT-beta                 R Uithof MG-403    _/ \_
> Faculty of Science, Utrecht University    T +31 30 253 4106 / \_/ \
> Leuvenlaan 4, 3584CE Utrecht, NL          F +31 30 253 4553 \_/ \_/
> http://www.staff.science.uu.nl/~penni101/ M penning@uu.nl     \_/

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