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language/haskell: let conform handle cabal formatting

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Ching Pei Yang 2026-05-20 16:34:15 +02:00
commit 802206bff4
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2 changed files with 27 additions and 43 deletions
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55
modules/plugins/languages/haskell.nix
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@ -6,10 +6,10 @@
...
}: let
inherit (builtins) attrNames;
inherit (lib) genAttrs optional;
inherit (lib) genAttrs;
inherit (lib.types) either package enum listOf str nullOr attrsOf anything;
inherit (lib.options) mkEnableOption mkOption literalExpression;
inherit (lib.modules) mkIf mkMerge mkDefault;
inherit (lib.modules) mkIf mkMerge;
inherit (config.vim.lib) mkMappingOption;
inherit (lib.nvim.lua) toLuaObject;
inherit (lib.nvim.binds) addDescriptionsToMappings;
@ -32,10 +32,9 @@
floskell = {command = getExe haskellPackages.floskell;};
};
defaultCabalFormat = "cabal-fmt";
defaultCabalFormat = ["cabal-fmt"];
cabalFormats = {
cabal-fmt = haskellPackages.cabal-fmt;
cabal-gild = haskellPackages.cabal-gild;
cabal-fmt = {command = getExe haskellPackages.cabal-fmt;};
};
in {
options.vim.languages.haskell = {
@ -77,19 +76,11 @@ in {
default = defaultFormat;
description = "Haskell formatter to use";
};
};
cabalFormat = {
enable =
mkEnableOption "Haskell cabal file formatting via HLS"
// {
default = config.vim.languages.enableFormat;
defaultText = literalExpression "config.vim.languages.enableFormat";
};
type = mkOption {
type = enum (attrNames cabalFormats);
cabalFormatters = mkOption {
type = listOf (enum (attrNames cabalFormats));
default = defaultCabalFormat;
description = "Haskell cabal file formatter to use via HLS";
description = "Cabal file formatter to use";
};
};
@ -201,20 +192,32 @@ in {
formatters_by_ft = {
haskell = cfg.format.type;
lhaskell = cfg.format.type;
cabal = cfg.format.cabalFormatters;
};
formatters =
mapListToAttrs (name: {
inherit name;
value = formats.${name};
})
cfg.format.type;
formatters = mkMerge [
(
mapListToAttrs
(name: {
inherit name;
value = formats.${name};
})
cfg.format.type
)
(
mapListToAttrs
(name: {
inherit name;
value = cabalFormats.${name};
})
cfg.format.cabalFormatters
)
];
};
};
})
(mkIf cfg.extensions.haskell-tools.enable {
vim = {
extraPackages = optional cfg.cabalFormat.enable cabalFormats.${cfg.cabalFormat.type};
startPlugins = ["haskell-tools-nvim"];
globals.haskell_tools = cfg.extensions.haskell-tools.setupOpts;
languages.haskell.extensions.haskell-tools.setupOpts = {
@ -239,12 +242,6 @@ in {
${mkBinding mappings.replQuit "function() vim.cmd('Haskell repl quit') end"}
end
'';
settings = mkIf cfg.cabalFormat.enable (mkDefault {
haskell = {
cabalFormattingProvider = cfg.cabalFormat.type;
plugin.${cfg.cabalFormat.type}.config.path = getExe cabalFormats.${cfg.cabalFormat.type};
};
});
};
};
};