Re: [gentoo-dev] New distfile mirror layout

[Fabian Groffen <grobian@gentoo.org>]

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On 29-10-2019 15:17:38 +0100, Ulrich Mueller wrote:
> >>>>> On Tue, 29 Oct 2019, Michał Górny wrote:
> 
> > On Tue, 2019-10-29 at 14:09 +0100, Ulrich Mueller wrote:
> >> > What if the file is hosted at a non-standard tcp port upstream
> >> > (like http://example.org:8080/)? The devmanual says that it _must_
> >> > be manually uploaded to /space/distfiles-local/ in such cases.
> 
> >> Or another example, app-emacs/vhdl-mode-3.38.1, where (incompetent,
> >> or nasty?) upstream blocks wget for some reason, but other methods
> >> (e.g., curl, firefox) work? How would I get the file onto the mirrors
> >> there?
> 
> > If I were you, I would've explicitly mirrored the file anyway.
> > If upstream blocks wget, then users who do not use GENTOO_MIRRORS will
> > also suffer due to it.
> 
> All what I'm saying is that there can be unusual circumstances where
> manual uploading of a file is useful. So please don't take that
> possibility away.

In addition, there are currently files there that aren't referenced from
ebuilds.  Prefix uses these files during bootstrap, local mirrors are
often much faster than dev.g.o.

If the files don't get mirrored anymore, I guess I can create a dummy
ebuild that has the files in SRC_URI.

If the files get mirrored, but put in a subdir based on the filename
hash, the original query endpoint on distfiles.g.o changes, much like
the SRC_URI approach.

Now I can use distfiles.prefix.b.n which redirects to the distfiles.g.o
URL with subdir for most part I think, but it's sub-optimal from my
point of view.  Calculating the hash is not always feasible due to the
lack of b2sum or other means.  Hence my earlier request to have such
official translation service on Gentoo hardware.

(I just wrote a small wsgi script that calculates the hash and generates
the redirect from Python, served via uwsgi/nginx, but there should be
many ways to achieve the same goals, if and only if a blake2b
implementation were available for it.)

Thanks,
Fabian

-- 
Fabian Groffen
Gentoo on a different level

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