hackage-db

Access cabal-install's Hackage database via Data.Map

https://github.com/NixOS/cabal2nix/tree/master/hackage-db#readme

LTS Haskell 23.27:2.1.3
Stackage Nightly 2025-07-12:2.1.3
Latest on Hackage:2.1.3

See all snapshots hackage-db appears in

BSD-3-Clause licensed by Peter Simons, Alexander Altman, Ben James, Kevin Quick
Maintained by sternenseemann
This version can be pinned in stack with:hackage-db-2.1.3@sha256:461f9c4fa9c9ed72e121f887a3084c986c816d51f30419d59739258f33d4931b,2926

Module documentation for 2.1.3

  • Distribution
    • Distribution.Hackage
      • Distribution.Hackage.DB
        • Distribution.Hackage.DB.Builder
        • Distribution.Hackage.DB.Errors
        • Distribution.Hackage.DB.MetaData
        • Distribution.Hackage.DB.Parsed
        • Distribution.Hackage.DB.Path
        • Distribution.Hackage.DB.Unparsed
        • Distribution.Hackage.DB.Utility
Used by 1 package in nightly-2025-07-12(full list with versions):
cabal2nix

hackage-db

hackage release stackage LTS package stackage Nightly package Continous Integration

Changes

Revision history for hackage-db

2.1.3

  • hackageTarball / cabalStateDir now support overriding the cabal directory location by setting the CABAL_DIR environment variable. This is useful if hackage-db doesn’t detect the correct location on its own:

    • A matching cabal state directory may exist, but should not be used for some reason.

    • A non-standard cabal state directory may be used, but hackage-db can’t find it (as it doesn’t check the cabal-install configuration file).

  • hackageTarball now supports all state dir location(s) (newly) supported by cabal-install. If CABAL_DIR is not set, it will look in the following locations in that order:

    1. $HOME/.cabal, the classic location, will be preferred if it exists.
    2. $XDG_CACHE_HOME/cabal (usually $HOME/.cache/cabal) is used otherwise. cabal-install 3.10.1.0 and newer will default to this location for fresh installations.

2.1.2

Fix a bug which lead to parsePackageData always failing if the package had a preferred-versions file in the hackage tarball.