Re: Errors downloading packages from Hackage in CI job on Github

Right, there's no evidence of use of mirrors because afaik it cannot be
configured. And normal verbosity doesn't print anything about it. But it
is, in fact, something cabal uses.

I know this information doesn't help. :(

Last week I had to fix the generation of all-cabal-hashes, which was
failing because it relied on the fpco mirror. Next week I'll continue
pushing for fixing the mirror situation, itself.

Until the mirror situation gets resolved, the only thing I can think of for
you to try is to figure out why Hackage can't serve you directly. Maybe
fork the Haskell setup action and add some extra verbosity? Are you on
private runners? Is there network weirdness? Is the CDN treating you as a
threat?

This mailing list is not as active as Discourse.. maybe post there to try
to find others with the same problem?



la 15.8.2026 klo 10.12 Ivan Perez <[email protected]> kirjoitti:

> I know you said stop using mirrors.
>
> I just made the CI job prints its $HOME/.cabal/config and this was in it:
>
> repository hackage.haskell.org
> url: http://hackage.haskell.org/
> -- secure: True
> -- root-keys:
> -- key-threshold: 3
>
> I don't see any evidence that Cabal is configured to use mirrors. Could
> this redirection be happening on the Hackage side?
>
> Ivan
>
> On Fri, 14 Aug 2026 at 09:06, Ivan Perez <[email protected]>
> wrote:
>
>> Thanks and done.
>>
>> For anyone who is interested:
>> https://github.com/haskell-actions/setup/issues/150
>>
>> Ivan
>>
>> On Fri, 14 Aug 2026 at 08:51, Tom Ellis <
>> [email protected]> wrote:
>>
>>> On Fri, Aug 14, 2026 at 08:28:44AM -0700, Ivan Perez wrote:
>>> > I'm using https://github.com/haskell-actions/setup to set up Haskell.
>>> >
>>> > I doubt I'm the only person affected by this.
>>> >
>>> > Is that something that could / should be adjusted there so that it
>>> helps
>>> > everyone?
>>>
>>> I think regardless of the cause or solution, if you're seeing it in
>>> haskell-actions/setup then you should file an issue there:
>>>
>>> https://github.com/haskell-actions/setup/issues/new
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