hnix-store-core fails to build with GHC 9.0.1

[sjakobi]

…when I use --allow-newer=base to circumvent the bounds in the cryptohash- packages:

src/System/Nix/ReadonlyStore.hs:60:12: error:
    • Syntax error on 'SHA256
      Perhaps you intended to use TemplateHaskell or TemplateHaskellQuotes
    • In the Template Haskell quotation 'SHA256
   |
60 |     hash @ 'SHA256
   |            ^^^^^^^

<no location info>: warning: [-Wunused-packages]
    The following packages were specified via -package or -package-id flags,
    but were not needed for compilation:
      - nix-derivation-1.1.1

Not sure what the warning regarding nix-derivation is about…

[sjakobi]

The syntax error might be related to https://gitlab.haskell.org/ghc/ghc/-/wikis/migration/9.0#whitespace-sensitive-and-

[Anton-Latukha]

Would keep it open, until migrated away from cryptohash-* (currently working on it).

Additional raw anecdote is - https://packdeps.haskellers.com/reverse/cryptohash-sha256 has cabal-install.

[Anton-Latukha]

@sjakobi In #157 the migration to cryptonite happened. As a nice side-effect the hnix-store-core not support GHC 9.0. & release of 0.5 was made. So closing this one. Further the support of GHC 9.0 for HNix.

[sjakobi]

Nice progress, @Anton-Latukha! 💪 😄