Is the ormolu plugin compatible with haskell-language-server-1.9.0.0?

[mitchellwrosen]

Hi! I just installed haskell-language-server-1.9.0.0 with ghcup (on Pop_OS!) and I see it doesn't come with the ormolu plugin enabled:

$ haskell-language-server-wrapper --list-plugins

LSPRecorderCallback
alternateNumberFormat
cabal
cabalfmt
callHierarchy
changeTypeSignature
class
codeRange
explicit-fields
explicit-fixity
fourmolu
gadt
ghcide-code-actions-bindings
ghcide-code-actions-fill-holes
ghcide-code-actions-imports-exports
ghcide-code-actions-type-signatures
ghcide-completions
ghcide-core
ghcide-extend-import-action
ghcide-hover-and-symbols
ghcide-type-lenses
hlint
importLens
moduleName
pragmas
qualifyImportedNames
refineImports
retrie
splice

Is that because of how the ghcup maintainers elected to compile haskell-language-server, and I could enable the ormolu plugin by building it from source myself? Or is there some other reason why the ormolu plugin is disabled?

Thanks!

[michaelpj]

What GHC version? Does this page answer your question? https://haskell-language-server.readthedocs.io/en/latest/support/plugin-support.html

[mitchellwrosen]

Oh, yes, of course - haskell-language-server-wrapper selects some other haskell-language-server-*, so the list of plugins I see with --list-plugins depends on which GHC version is selected.

So yes, I see now ormolu doesn't support GHC 9.4 :) Thank you!