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neovim-flake/modules/plugins/languages/r.nix

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{
config,
pkgs,
lib,
...
}: let
inherit (builtins) attrNames;
inherit (lib.options) mkEnableOption mkOption literalExpression;
inherit (lib.modules) mkIf mkMerge;
inherit (lib.lists) isList;
inherit (lib.types) enum either listOf package str;
inherit (lib.nvim.lua) expToLua;
inherit (lib.nvim.types) mkGrammarOption;
cfg = config.vim.languages.r;
r-with-languageserver = pkgs.rWrapper.override {
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packages = [pkgs.rPackages.languageserver];
};
defaultFormat = "format_r";
formats = {
styler = {
package = pkgs.rWrapper.override {
packages = [pkgs.rPackages.styler];
};
nullConfig = ''
table.insert(
ls_sources,
null_ls.builtins.formatting.styler.with({
command = "${cfg.format.package}/bin/R",
})
)
'';
};
format_r = {
package = pkgs.rWrapper.override {
packages = [pkgs.rPackages.formatR];
};
nullConfig = ''
table.insert(
ls_sources,
null_ls.builtins.formatting.format_r.with({
command = "${cfg.format.package}/bin/R",
})
)
'';
};
};
defaultServer = "r_language_server";
servers = {
r_language_server = {
package = pkgs.writeShellScriptBin "r_lsp" ''
${r-with-languageserver}/bin/R --slave -e "languageserver::run()"
'';
lspConfig = ''
lspconfig.r_language_server.setup{
capabilities = capabilities;
on_attach = default_on_attach;
cmd = ${
if isList cfg.lsp.package
then expToLua cfg.lsp.package
else ''{"${lib.getExe cfg.lsp.package}"}''
}
}
'';
};
};
in {
options.vim.languages.r = {
enable = mkEnableOption "R language support";
treesitter = {
enable = mkEnableOption "R treesitter" // {default = config.vim.languages.enableTreesitter;};
package = mkGrammarOption pkgs "r";
};
lsp = {
enable = mkEnableOption "R LSP support" // {default = config.vim.languages.enableLSP;};
server = mkOption {
description = "R LSP server to use";
type = enum (attrNames servers);
default = defaultServer;
};
package = mkOption {
description = "R LSP server package, or the command to run as a list of strings";
example = literalExpression "[ (lib.getExe pkgs.jdt-language-server) \"-data\" \"~/.cache/jdtls/workspace\" ]";
type = either package (listOf str);
default = servers.${cfg.lsp.server}.package;
};
};
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format = {
enable = mkEnableOption "R formatting" // {default = config.vim.languages.enableFormat;};
type = mkOption {
type = enum (attrNames formats);
default = defaultFormat;
description = "R formatter to use";
};
package = mkOption {
type = package;
default = formats.${cfg.format.type}.package;
description = "R formatter package";
};
};
};
config = mkIf cfg.enable (mkMerge [
(mkIf cfg.treesitter.enable {
vim.treesitter.enable = true;
vim.treesitter.grammars = [cfg.treesitter.package];
})
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(mkIf cfg.format.enable {
vim.lsp.null-ls.enable = true;
vim.lsp.null-ls.sources.r-format = formats.${cfg.format.type}.nullConfig;
})
(mkIf cfg.lsp.enable {
vim.lsp.lspconfig.enable = true;
vim.lsp.lspconfig.sources.r-lsp = servers.${cfg.lsp.server}.lspConfig;
})
]);
}