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e7f3af5445
Unwrap cabal-fmt from the haskell-language-server binary, and add an option to configure the executable between cabal-fmt and cabal-gild.
45 lines
1.6 KiB
Nix
45 lines
1.6 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}: let
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inherit (lib.meta) getExe getExe';
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inherit (lib.modules) mkIf;
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inherit (lib.nvim.types) mkLspPresetEnableOption;
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cfg = config.vim.lsp.presets.haskell-language-server;
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cabalFmtCfg = config.vim.languages.haskell.cabalFormat;
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cabalFormats = {
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cabal-fmt = pkgs.haskellPackages.cabal-fmt;
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cabal-gild = pkgs.haskellPackages.cabal-gild;
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};
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in {
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options.vim.lsp.presets.haskell-language-server = {
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enable = mkLspPresetEnableOption "haskell-language-server" "Haskell" [];
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};
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config = mkIf cfg.enable {
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vim.lsp.servers.haskell-language-server = {
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enable = true;
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cmd = [
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(getExe' (pkgs.symlinkJoin {
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name = "haskell-language-server-wrapper";
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paths = [pkgs.haskellPackages.haskell-language-server];
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meta.mainProgram = "haskell-language-server-wrapper";
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buildInputs = [pkgs.makeBinaryWrapper];
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}) "haskell-language-server-wrapper")
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"--lsp"
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];
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root_markers = ["hie.yaml" "stack.yaml" "cabal.project" "*.cabal" "package.yaml"];
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settings = mkIf cabalFmtCfg.enable {
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haskell = {
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cabalFormattingProvider = cabalFmtCfg.type;
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# This option is undocumented in the haskell-language-server docs, but it does exist in the plugin API
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# https://github.com/haskell/haskell-language-server/blob/f158128ec034bec1667c440262641086bbb4d359/plugins/hls-cabal-fmt-plugin/src/Ide/Plugin/CabalFmt.hs#L51
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plugin.${cabalFmtCfg.type}.config.path = getExe cabalFormats.${cabalFmtCfg.type};
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};
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};
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};
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};
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}
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