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Snapshot index tarball no longer generated #330
Description
A random index tarball from olden times: https://www.stackage.org/lts-13.11/00-index.tar.gz
(Downloads fine)
The same route for a newer LTS: https://www.stackage.org/lts-22.6/00-index.tar.gz
(Redirects to https://stackage-haddock.haskell.org/package-index/lts-22.6.tar.gz, which returns a 404)
I'm not sure whether this is a "bug". I'm okay with this endpoint being deprecated. A nicer error might be nice, though. And a newer way to integrate cabal-install with snapshots-as-repositories would also be good.
Activity
shlevy commentedon Jan 19, 2026
Was hoping to use the snapshot "package-repo" as a way to integrate with cabal.project, would be nice to bring this back/modernize it.
chreekat commentedon Jan 19, 2026
@commercialhaskell/stackage-curators do you know if this tarball is simply not generated at all, or if the new infrastructure just doesn't make it easily accessible? I vaguely recall creating this ticket, but I don't remember the context.
shlevy commentedon Jan 19, 2026
Perhaps the overhead is too high, but ideally we’d create a new-style hackage repo (01-index, + hackage-security).
Either way, given how you can now make repos exclusive in cabal.project, bringing this back should supercede the need for the generated .config files and not have any issues with newer revisions being added to upstream hackage.
chreekat commentedon Jan 22, 2026
I'm keen to have good interop between cabal/stackage (and stack/hackage). I am not familiar with what it would take to create such a repo, but it certainly sounds like a good idea.
chreekat commentedon Jan 22, 2026
Probably the best option would be to create an independent scheduled job, similar to the ones that update casa and the stackage website, e.g. stackage-update: https://github.com/haskellfoundation/hf-infrastructure/blob/main/stackage-builder/nixos-modules/stackage-server.nix#L196
juhp commentedon Jan 23, 2026
TBH I don't think I ever heard of this stackage feature - at least I don't remember.
Seems https://stackage-haddock.haskell.org/package-index/lts-13.30.tar.gz was the last one perhaps.
It agree it could be useful - perhaps we can look at the code for more insight.
There is also the (legacy)
cabal.configfiles we still generate:eg https://www.stackage.org/lts-24.28/cabal.config
(though I admit I always found them a bit clunky to use?).
Dunno if it is worth converting them to
cabal.project.freezeformat?