nix: Add alejandra, prettify and cabal-gild git hook

[carbolymer]

Changelog

- description: |
    nix: Add alejandra, prettify and cabal-gild git hook
# uncomment types applicable to the change:
  type:
  # - feature        # introduces a new feature
  # - breaking       # the API has changed in a breaking way
  # - compatible     # the API has changed but is non-breaking
  # - optimisation   # measurable performance improvements
  # - refactoring    # QoL changes
  # - bugfix         # fixes a defect
  # - test           # fixes/modifies tests
   - maintenance    # not directly related to the code
  # - release        # related to a new release preparation
  # - documentation  # change in code docs, haddocks...
# uncomment at least one main project this PR is associated with
  projects:
   - cardano-api
  # - cardano-api-gen
  # - cardano-rpc
  # - cardano-wasm

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Checklist

• Commit sequence broadly makes sense and commits have useful messages
• New tests are added if needed and existing tests are updated. See Running tests for more details
• Self-reviewed the diff

[palas]

I was testing the hook for cabal-gild and I am getting this for a perfectly valid cardano-api.cabal file:

HasCallStack backtrace:
  collectBacktraces, called at libraries/ghc-internal/src/GHC/Internal/Exception.hs:169:13 in ghc-internal:GHC.Internal.Exception
  toExceptionWithBacktrace, called at libraries/ghc-internal/src/GHC/Internal/IO.hs:260:11 in ghc-internal:GHC.Internal.IO
  throwIO, called at libraries/ghc-internal/src/GHC/Internal/Control/Exception/Base.hs:195:43 in ghc-internal:GHC.Internal.Control.Exception.Base

So we should fix this before merging, I'll give it a go

[palas]

I think I fixed it now, and also rebased the branch

[palas]

I copied this from https://github.com/cachix/git-hooks.nix/blob/ca5b894d3e3e151ffc1db040b6ce4dcc75d31c37/modules/hooks.nix#L2303:

I imagine it could be made simpler by modifying the package field instead of entry, but I am not sure where in the flake to get it from, and this works fine.

Another thing is that it looks like the scripts/githooks/haskell-style-lint hook, already checks this, but it is probably nicer to have it separate as it is now