languages: convert modules to new LSP option set format

modules/plugins/languages/asm.nix

@@ -4,12 +4,34 @@
   lib,
   ...
 }: let
+  inherit (builtins) attrNames;
   inherit (lib.options) mkEnableOption mkOption;
   inherit (lib.modules) mkIf mkMerge;
-  inherit (lib.types) package;
+  inherit (lib.types) enum either listOf package str;
+  inherit (lib.lists) isList;
+  inherit (lib.meta) getExe;
+  inherit (lib.generators) mkLuaInline;
+  inherit (lib.nvim.lua) expToLua toLuaObject;
+  inherit (lib.nvim.languages) lspOptions;
   inherit (lib.nvim.types) mkGrammarOption;
 
   cfg = config.vim.languages.assembly;
+
+  defaultServer = "asm_lsp";
+  servers = {
+    asm_lsp = {
+      package = pkgs.asm-lsp;
+      options = {
+        capabilities = mkLuaInline "capabilities";
+        on_attach = mkLuaInline "default_on_attach";
+        filetypes = ["asm" "vasm"];
+        cmd =
+          if isList cfg.lsp.package
+          then expToLua cfg.lsp.package
+          else ["${getExe cfg.lsp.package}"];
+      };
+    };
+  };
 in {
   options.vim.languages.assembly = {
     enable = mkEnableOption "Assembly support";
@@ -22,28 +44,46 @@ in {
     lsp = {
       enable = mkEnableOption "Assembly LSP support (asm-lsp)" // {default = config.vim.languages.enableLSP;};
 
+      server = mkOption {
+        description = "Assembly LSP server to use";
+        type = enum (attrNames servers);
+        default = defaultServer;
+      };
+
       package = mkOption {
-        type = package;
+        description = "asm-lsp LSP server package, or the command to run as a list of strings";
-        default = pkgs.asm-lsp;
+        example = ''[lib.getExe pkgs.asm-lsp "--quiet"]'';
-        description = "asm-lsp package";
+        type = either package (listOf str);
+        default = servers.${cfg.lsp.server}.package;
+      };
+
+      options = mkOption {
+        type = lspOptions;
+        default = servers.${cfg.lsp.server}.options;
+        description = ''
+          LSP options for Assembly language support.
+
+          This option is freeform, you may add options that are not set by default
+          and they will be merged into the final table passed to lspconfig.
+        '';
       };
     };
   };
   config = mkIf cfg.enable (mkMerge [
     (mkIf cfg.treesitter.enable {
-      vim.treesitter.enable = true;
+      vim.treesitter = {
-      vim.treesitter.grammars = [cfg.treesitter.package];
+        enable = true;
+        grammars = [cfg.treesitter.package];
+      };
     })
 
     (mkIf cfg.lsp.enable {
-      vim.lsp.lspconfig.enable = true;
+      vim.lsp.lspconfig = {
-      vim.lsp.lspconfig.sources.asm-lsp = ''
+        enable = true;
-        lspconfig.asm_lsp.setup {
+        sources.asm-lsp = ''
-          capabilities = capabilities,
+          lspconfig.${toLuaObject cfg.lsp.server}.setup(${toLuaObject cfg.lsp.options})
-          on_attach = default_on_attach,
+        '';
-          cmd = {"${cfg.lsp.package}/bin/asm-lsp"},
+      };
-        }
-      '';
     })
   ]);
 }

modules/plugins/languages/astro.nix

@@ -7,11 +7,12 @@
   inherit (builtins) attrNames;
   inherit (lib.options) mkEnableOption mkOption;
   inherit (lib.modules) mkIf mkMerge;
+  inherit (lib.types) enum either listOf package str;
   inherit (lib.lists) isList;
   inherit (lib.meta) getExe;
-  inherit (lib.types) enum either listOf package str;
+  inherit (lib.generators) mkLuaInline;
-  inherit (lib.nvim.lua) expToLua;
+  inherit (lib.nvim.lua) expToLua toLuaObject;
-  inherit (lib.nvim.languages) diagnosticsToLua;
+  inherit (lib.nvim.languages) diagnosticsToLua lspOptions;
   inherit (lib.nvim.types) mkGrammarOption diagnostics;
 
   cfg = config.vim.languages.astro;
@@ -20,17 +21,16 @@
   servers = {
     astro = {
       package = pkgs.astro-language-server;
-      lspConfig = ''
+      options = {
-        lspconfig.astro.setup {
+        capabilities = mkLuaInline "capabilities";
-          capabilities = capabilities;
+        on_attach = mkLuaInline "attach_keymaps";
-          on_attach = attach_keymaps,
+        filetypes = ["astro"];
-          cmd = ${
+        init_options = {typescript = {};};
+        cmd =
           if isList cfg.lsp.package
           then expToLua cfg.lsp.package
-          else ''{"${cfg.lsp.package}/bin/astro-ls", "--stdio"}''
+          else ["${getExe cfg.lsp.package}" "--stdio"];
-        }
+      };
-        }
-      '';
     };
   };
 
@@ -83,8 +83,7 @@ in {
 
     treesitter = {
       enable = mkEnableOption "Astro treesitter" // {default = config.vim.languages.enableTreesitter;};
-
+      package = mkGrammarOption pkgs "astro";
-      astroPackage = mkGrammarOption pkgs "astro";
     };
 
     lsp = {
@@ -96,6 +95,17 @@ in {
         default = defaultServer;
       };
 
+      options = mkOption {
+        type = lspOptions;
+        default = servers.${cfg.lsp.server}.options;
+        description = ''
+          LSP options for Astro language support.
+
+          This option is freeform, you may add options that are not set by default
+          and they will be merged into the final table passed to lspconfig.
+        '';
+      };
+
       package = mkOption {
         description = "Astro LSP server package, or the command to run as a list of strings";
         example = ''[lib.getExe pkgs.astro-language-server "--minify" "--stdio"]'';
@@ -134,12 +144,14 @@ in {
   config = mkIf cfg.enable (mkMerge [
     (mkIf cfg.treesitter.enable {
       vim.treesitter.enable = true;
-      vim.treesitter.grammars = [cfg.treesitter.astroPackage];
+      vim.treesitter.grammars = [cfg.treesitter.package];
     })
 
     (mkIf cfg.lsp.enable {
       vim.lsp.lspconfig.enable = true;
-      vim.lsp.lspconfig.sources.astro-lsp = servers.${cfg.lsp.server}.lspConfig;
+      vim.lsp.lspconfig.sources.astro-lsp = ''
+        lspconfig.${toLuaObject cfg.lsp.server}.setup(${toLuaObject cfg.lsp.options})
+      '';
     })
 
     (mkIf cfg.format.enable {

modules/plugins/languages/bash.nix

@@ -7,11 +7,13 @@
   inherit (builtins) attrNames;
   inherit (lib.options) mkOption mkEnableOption literalExpression;
   inherit (lib.modules) mkIf mkMerge;
+  inherit (lib.types) enum either listOf package str bool;
   inherit (lib.lists) isList;
-  inherit (lib.types) enum either package listOf str bool;
+  inherit (lib.meta) getExe;
-  inherit (lib.nvim.languages) diagnosticsToLua;
+  inherit (lib.generators) mkLuaInline;
-  inherit (lib.nvim.types) diagnostics mkGrammarOption;
+  inherit (lib.nvim.lua) expToLua toLuaObject;
-  inherit (lib.nvim.lua) expToLua;
+  inherit (lib.nvim.languages) diagnosticsToLua lspOptions;
+  inherit (lib.nvim.types) mkGrammarOption diagnostics;
 
   cfg = config.vim.languages.bash;
 
@@ -19,17 +21,15 @@
   servers = {
     bash-ls = {
       package = pkgs.bash-language-server;
-      lspConfig = ''
+      options = {
-        lspconfig.bashls.setup{
+        capabilities = mkLuaInline "capabilities";
-          capabilities = capabilities;
+        on_attach = mkLuaInline "default_on_attach";
-          on_attach = default_on_attach;
+        filetypes = ["bash" "sh"];
-          cmd = ${
+        cmd =
           if isList cfg.lsp.package
           then expToLua cfg.lsp.package
-          else ''{"${cfg.lsp.package}/bin/bash-language-server",  "start"}''
+          else ["${getExe cfg.lsp.package}" "start"];
-        };
+      };
-        }
-      '';
     };
   };
 
@@ -87,6 +87,17 @@ in {
         type = either package (listOf str);
         default = pkgs.bash-language-server;
       };
+
+      options = mkOption {
+        type = lspOptions;
+        default = servers.${cfg.lsp.server}.options;
+        description = ''
+          LSP options for Bash language support.
+
+          This option is freeform, you may add options that are not set by default
+          and they will be merged into the final table passed to lspconfig.
+        '';
+      };
     };
 
     format = {
@@ -126,7 +137,9 @@ in {
 
     (mkIf cfg.lsp.enable {
       vim.lsp.lspconfig.enable = true;
-      vim.lsp.lspconfig.sources.bash-lsp = servers.${cfg.lsp.server}.lspConfig;
+      vim.lsp.lspconfig.sources.bash-lsp = ''
+        lspconfig.${toLuaObject cfg.lsp.server}.setup(${toLuaObject cfg.lsp.options})
+      '';
     })
 
     (mkIf cfg.format.enable {

modules/plugins/languages/clang.nix

@@ -5,48 +5,62 @@
   ...
 }: let
   inherit (builtins) attrNames;
-  inherit (lib.lists) isList;
-  inherit (lib.strings) optionalString;
-  inherit (lib.options) mkEnableOption mkOption;
-  inherit (lib.types) bool enum package either listOf str nullOr;
   inherit (lib.modules) mkIf mkMerge;
-  inherit (lib.nvim.lua) expToLua;
+  inherit (lib.options) mkEnableOption mkOption;
+  inherit (lib.types) bool enum package either listOf str;
+  inherit (lib.lists) isList;
+  inherit (lib.generators) mkLuaInline;
+  inherit (lib.nvim.lua) expToLua toLuaObject;
   inherit (lib.nvim.types) mkGrammarOption;
+  inherit (lib.nvim.languages) lspOptions;
+
   inherit (lib.nvim.dag) entryAfter;
 
-  packageToCmd = package: defaultCmd:
-    if isList cfg.lsp.package
-    then expToLua cfg.lsp.package
-    else ''{ "${cfg.lsp.package}/bin/${defaultCmd}" }'';
-
   cfg = config.vim.languages.clang;
 
+  packageToCmd = package: defaultCmd:
+    if isList package
+    then expToLua package
+    else ''{ "${package}/bin/${defaultCmd}" }'';
+
   defaultServer = "clangd";
   servers = {
     ccls = {
       package = pkgs.ccls;
-      lspConfig = ''
+      options = {
-        lspconfig.ccls.setup{
+        capabilities = mkLuaInline "capabilities";
-          capabilities = capabilities;
+        on_attach = mkLuaInline "default_on_attach";
-          on_attach=default_on_attach;
+        filetypes = ["c" "cpp" "objc" "objcpp" "cuda"];
-          cmd = ${packageToCmd cfg.lsp.package "ccls"};
+        offset_encoding = "utf-32";
-          ${optionalString (cfg.lsp.opts != null) "init_options = ${cfg.lsp.opts}"}
+        cmd =
-        }
+          if isList cfg.lsp.package
-      '';
+          then expToLua cfg.lsp.package
+          else ["${packageToCmd cfg.lsp.package "ccls"}"];
+        single_file_support = false; # upstream default
+      };
     };
+
     clangd = {
       package = pkgs.clang-tools;
-      lspConfig = ''
+      options = {
-        local clangd_cap = capabilities
+        capabilities = mkLuaInline ''
-        -- use same offsetEncoding as null-ls
+          {
-        clangd_cap.offsetEncoding = {"utf-16"}
+            offsetEncoding = { "utf-8", "utf-16" },
-        lspconfig.clangd.setup{
+            textDocument = {
-          capabilities = clangd_cap;
+            completion = {
-          on_attach=default_on_attach;
+              editsNearCursor = true
-          cmd = ${packageToCmd cfg.lsp.package "clangd"};
+            }
-          ${optionalString (cfg.lsp.opts != null) "init_options = ${cfg.lsp.opts}"}
+          }
-        }
+        '';
-      '';
+        on_attach = mkLuaInline "default_on_attach";
+        filetypes = ["c" "cpp" "objc" "objcpp" "cuda" "proto"];
+        offset_encoding = "utf-32";
+        cmd =
+          if isList cfg.lsp.package
+          then expToLua cfg.lsp.package
+          else ["${packageToCmd cfg.lsp.package "clangd"}"];
+        single_file_support = false; # upstream default
+      };
     };
   };
 
@@ -60,6 +74,7 @@
           command = '${cfg.dap.package}/bin/lldb-dap',
           name = 'lldb'
         }
+
         dap.configurations.cpp = {
           {
             name = 'Launch',
@@ -98,10 +113,10 @@ in {
     };
 
     lsp = {
-      enable = mkEnableOption "clang LSP support" // {default = config.vim.languages.enableLSP;};
+      enable = mkEnableOption "C/C++ LSP support" // {default = config.vim.languages.enableLSP;};
 
       server = mkOption {
-        description = "The clang LSP server to use";
+        description = "The C/C++ LSP server to use";
         type = enum (attrNames servers);
         default = defaultServer;
       };
@@ -113,10 +128,15 @@ in {
         default = servers.${cfg.lsp.server}.package;
       };
 
-      opts = mkOption {
+      options = mkOption {
-        description = "Options to pass to clang LSP server";
+        type = lspOptions;
-        type = nullOr str;
+        default = servers.${cfg.lsp.server}.options;
-        default = null;
+        description = ''
+          LSP options for C/C++ language support.
+
+          This option is freeform, you may add options that are not set by default
+          and they will be merged into the final table passed to lspconfig.
+        '';
       };
     };
 
@@ -126,11 +146,13 @@ in {
         type = bool;
         default = config.vim.languages.enableDAP;
       };
+
       debugger = mkOption {
         description = "clang debugger to use";
         type = enum (attrNames debuggers);
         default = defaultDebugger;
       };
+
       package = mkOption {
         description = "clang debugger package.";
         type = package;
@@ -151,8 +173,9 @@ in {
 
     (mkIf cfg.lsp.enable {
       vim.lsp.lspconfig.enable = true;
-
+      vim.lsp.lspconfig.sources.clang-lsp = ''
-      vim.lsp.lspconfig.sources.clang-lsp = servers.${cfg.lsp.server}.lspConfig;
+        lspconfig.${toLuaObject cfg.lsp.server}.setup(${toLuaObject cfg.lsp.options})
+      '';
     })
 
     (mkIf cfg.dap.enable {

modules/plugins/languages/csharp.nix

@@ -6,13 +6,14 @@
   ...
 }: let
   inherit (builtins) attrNames;
-  inherit (lib.options) mkEnableOption mkOption;
-  inherit (lib.types) either listOf package str enum;
   inherit (lib.modules) mkIf mkMerge;
+  inherit (lib.options) mkOption mkEnableOption;
+  inherit (lib.types) either listOf package str enum;
   inherit (lib.lists) isList;
   inherit (lib.strings) optionalString;
+  inherit (lib.generators) mkLuaInline;
   inherit (lib.nvim.types) mkGrammarOption;
-  inherit (lib.nvim.lua) expToLua;
+  inherit (lib.nvim.lua) expToLua toLuaObject;
 
   lspKeyConfig = config.vim.lsp.mappings;
   lspKeyOptions = options.vim.lsp.mappings;
@@ -22,6 +23,11 @@
   in
     optionalString (key != null) "vim.keymap.set('n', '${key}', ${action}, {buffer=bufnr, noremap=true, silent=true, desc='${desc}'})";
 
+  packageToCmd = package: defaultCmd:
+    if isList package
+    then expToLua package
+    else ''{ "${package}/bin/${defaultCmd}" }'';
+
   # Omnisharp doesn't have colors in popup docs for some reason, and I've also
   # seen mentions of it being way slower, so until someone finds missing
   # functionality, this will be the default.
@@ -30,10 +36,10 @@
     omnisharp = {
       package = pkgs.omnisharp-roslyn;
       internalFormatter = true;
-      lspConfig = ''
+      options = {
-        lspconfig.omnisharp.setup {
+        capabilities = mkLuaInline "capabilities";
-          capabilities = capabilities,
+        on_attach = mkLuaInline ''
-          on_attach = function(client, bufnr)
+          function(client, bufnr)
             default_on_attach(client, bufnr)
 
             local oe = require("omnisharp_extended")
@@ -42,35 +48,40 @@
             ${mkLspBinding "listReferences" "oe.lsp_references"}
             ${mkLspBinding "listImplementations" "oe.lsp_implementation"}
           end,
-          cmd = ${
+        '';
+        filetypes = ["cs" "vb"];
+        cmd =
           if isList cfg.lsp.package
           then expToLua cfg.lsp.package
-          else "{'${cfg.lsp.package}/bin/OmniSharp'}"
+          else ["${packageToCmd cfg.lsp.package "OmniSharp"}"];
-        }
+        single_file_support = false; # upstream default
-        }
+        init_options = {};
-      '';
+        handlers = {
+          "textDocument/definition" = mkLuaInline "extended_handler";
+          "textDocument/typeDefinition" = mkLuaInline "extended_handler";
+        };
+      };
     };
 
     csharp_ls = {
       package = pkgs.csharp-ls;
       internalFormatter = true;
-      lspConfig = ''
+      options = {
-        local extended_handler = require("csharpls_extended").handler
+        capabilities = mkLuaInline "capabilities";
-
+        on_attach = mkLuaInline "default_on_attach";
-        lspconfig.csharp_ls.setup {
+        filetypes = ["cs"];
-          capabilities = capabilities,
+        offset_encoding = "utf-32";
-          on_attach = default_on_attach,
+        cmd =
-          handlers = {
-            ["textDocument/definition"] = extended_handler,
-            ["textDocument/typeDefinition"] = extended_handler
-          },
-          cmd = ${
           if isList cfg.lsp.package
           then expToLua cfg.lsp.package
-          else "{'${cfg.lsp.package}/bin/csharp-ls'}"
+          else ["${packageToCmd cfg.lsp.package "csharp-ls"}"];
-        }
+        single_file_support = false; # upstream default
-        }
+        init_options = {AutomaticWorkspaceInit = true;};
-      '';
+        handlers = {
+          "textDocument/definition" = mkLuaInline "extended_handler";
+          "textDocument/typeDefinition" = mkLuaInline "extended_handler";
+        };
+      };
     };
   };
 
@@ -116,7 +127,9 @@ in {
     (mkIf cfg.lsp.enable {
       vim.startPlugins = extraServerPlugins.${cfg.lsp.server} or [];
       vim.lsp.lspconfig.enable = true;
-      vim.lsp.lspconfig.sources.csharp-lsp = servers.${cfg.lsp.server}.lspConfig;
+      vim.lsp.lspconfig.sources.csharp-lsp = ''
+        lspconfig.${toLuaObject cfg.lsp.server}.setup(${toLuaObject cfg.lsp.options})
+      '';
     })
   ]);
 }

modules/plugins/languages/cue.nix

@@ -1,15 +1,38 @@
 {
-  pkgs,
   config,
+  pkgs,
   lib,
   ...
 }: let
+  inherit (builtins) attrNames;
   inherit (lib.options) mkEnableOption mkOption;
   inherit (lib.modules) mkIf mkMerge;
-  inherit (lib.types) package;
+  inherit (lib.types) enum either listOf package str;
+  inherit (lib.lists) isList;
+  inherit (lib.meta) getExe;
+  inherit (lib.generators) mkLuaInline;
+  inherit (lib.nvim.lua) expToLua toLuaObject;
+  inherit (lib.nvim.languages) lspOptions;
   inherit (lib.nvim.types) mkGrammarOption;
 
   cfg = config.vim.languages.cue;
+
+  defaultServer = "cue";
+  servers = {
+    cue = {
+      package = pkgs.cue;
+      options = {
+        capabilities = mkLuaInline "capabilities";
+        on_attach = mkLuaInline "default_on_attach";
+        filetypes = ["cue"];
+        cmd =
+          if isList cfg.lsp.package
+          then expToLua cfg.lsp.package
+          else ["${getExe cfg.lsp.package}"];
+        single_file_support = true;
+      };
+    };
+  };
 in {
   options.vim.languages.cue = {
     enable = mkEnableOption "CUE language support";
@@ -23,10 +46,29 @@ in {
     lsp = {
       enable = mkEnableOption "CUE LSP support" // {default = config.vim.languages.enableLSP;};
 
+      server = mkOption {
+        description = "CUE LSP server to use";
+        type = enum (attrNames servers);
+        default = defaultServer;
+      };
+
       package = mkOption {
-        type = package;
+        type = either package (listOf str);
-        default = pkgs.cue;
+        default = servers.${cfg.lsp.server}.package;
-        description = "cue lsp implementation";
+        description = ''
+          CUE LSP server package, or the command to run as a list of strings
+        '';
+      };
+
+      options = mkOption {
+        type = lspOptions;
+        default = servers.${cfg.lsp.server}.options;
+        description = ''
+          LSP options for CUE language support.
+
+          This option is freeform, you may add options that are not set by default
+          and they will be merged into the final table passed to lspconfig.
+        '';
       };
     };
   };
@@ -38,14 +80,12 @@ in {
     })
 
     (mkIf cfg.lsp.enable {
-      vim.lsp.lspconfig.enable = true;
+      vim.lsp.lspconfig = {
-      vim.lsp.lspconfig.sources.cue-lsp = ''
+        enable = true;
-        lspconfig.cue.setup {
+        sources.cue-lsp = ''
-          capabilities = capabilities,
+          lspconfig.${toLuaObject cfg.lsp.server}.setup(${toLuaObject cfg.lsp.options})
-          on_attach = default_on_attach,
+        '';
-          cmd = {"${cfg.lsp.package}/bin/cue", "lsp"},
+      };
-        }
-      '';
     })
   ]);
 }

modules/plugins/languages/dart.nix

@@ -6,12 +6,15 @@
 }: let
   inherit (builtins) attrNames;
   inherit (lib.modules) mkIf mkMerge;
-  inherit (lib.trivial) boolToString;
-  inherit (lib.lists) isList;
   inherit (lib.options) mkEnableOption mkOption;
-  inherit (lib.types) enum either listOf package nullOr str bool;
+  inherit (lib.types) enum either listOf package str bool;
+  inherit (lib.lists) isList;
   inherit (lib.strings) optionalString;
-  inherit (lib.nvim.lua) expToLua;
+  inherit (lib.trivial) boolToString;
+  inherit (lib.meta) getExe;
+  inherit (lib.generators) mkLuaInline;
+  inherit (lib.nvim.lua) expToLua toLuaObject;
+  inherit (lib.nvim.languages) lspOptions;
   inherit (lib.nvim.types) mkGrammarOption;
   inherit (lib.nvim.dag) entryAnywhere;
 
@@ -22,18 +25,29 @@
   servers = {
     dart = {
       package = pkgs.dart;
-      lspConfig = ''
+      options = {
-        lspconfig.dartls.setup{
+        capabilities = mkLuaInline "capabilities";
-          capabilities = capabilities;
+        on_attach = mkLuaInline "default_on_attach";
-          on_attach=default_on_attach;
+        filetypes = ["dart"];
-          cmd = ${
+        cmd =
           if isList cfg.lsp.package
           then expToLua cfg.lsp.package
-          else ''{"${cfg.lsp.package}/bin/dart", "language-server", "--protocol=lsp"}''
+          else ["${getExe cfg.lsp.package}" "language-server" "--protocol=lsp"];
+        single_file_support = true;
+        init_options = {
+          closingLabels = true;
+          flutterOutline = true;
+          onlyAnalyzeProjectsWithOpenFiles = true;
+          outline = true;
+          suggestFromUnimportedLibraries = true;
         };
-          ${optionalString (cfg.lsp.opts != null) "init_options = ${cfg.lsp.dartOpts}"}
+        settings = {
-        }
+          dart = {
-      '';
+            completeFunctionCalls = true;
+            showTodos = true;
+          };
+        };
+      };
     };
   };
 in {
@@ -52,6 +66,7 @@ in {
         type = enum (attrNames servers);
         default = defaultServer;
       };
+
       package = mkOption {
         type = either package (listOf str);
         default = servers.${cfg.lsp.server}.package;
@@ -59,10 +74,15 @@ in {
         description = "Dart LSP server package, or the command to run as a list of strings";
       };
 
-      opts = mkOption {
+      options = mkOption {
-        type = nullOr str;
+        type = lspOptions;
-        default = null;
+        default = servers.${cfg.lsp.server}.options;
-        description = "Options to pass to Dart LSP server";
+        description = ''
+          LSP options for Dart language support.
+
+          This option is freeform, you may add options that are not set by default
+          and they will be merged into the final table passed to lspconfig.
+        '';
       };
     };
 
@@ -129,8 +149,12 @@ in {
     })
 
     (mkIf cfg.lsp.enable {
-      vim.lsp.lspconfig.enable = true;
+      vim.lsp.lspconfig = {
-      vim.lsp.lspconfig.sources.dart-lsp = servers.${cfg.lsp.server}.lspConfig;
+        enable = true;
+        sources.dart-lsp = ''
+          lspconfig.${toLuaObject cfg.lsp.server}.setup(${toLuaObject cfg.lsp.options})
+        '';
+      };
     })
 
     (mkIf ftcfg.enable {

modules/plugins/languages/elixir.nix

@@ -7,10 +7,13 @@
   inherit (builtins) attrNames;
   inherit (lib.options) mkEnableOption mkOption;
   inherit (lib.modules) mkIf mkMerge;
-  inherit (lib.lists) isList;
   inherit (lib.types) enum either listOf package str;
+  inherit (lib.lists) isList;
+  inherit (lib.meta) getExe;
+  inherit (lib.generators) mkLuaInline;
   inherit (lib.nvim.types) mkGrammarOption;
-  inherit (lib.nvim.lua) expToLua;
+  inherit (lib.nvim.lua) expToLua toLuaObject;
+  inherit (lib.nvim.languages) lspOptions;
   inherit (lib.nvim.dag) entryAnywhere;
 
   cfg = config.vim.languages.elixir;
@@ -19,18 +22,15 @@
   servers = {
     elixirls = {
       package = pkgs.elixir-ls;
-      lspConfig = ''
+      options = {
-        -- elixirls setup
+        capabilities = mkLuaInline "capabilities";
-        lspconfig.elixirls.setup {
+        on_attach = mkLuaInline "default_on_attach";
-          capabilities = capabilities,
+        filetypes = ["elixir" "eelixir" "heex" "surface"];
-          on_attach = default_on_attach,
+        cmd =
-          cmd = ${
           if isList cfg.lsp.package
           then expToLua cfg.lsp.package
-          else ''{"${cfg.lsp.package}/bin/elixir-ls"}''
+          else ["${getExe cfg.lsp.package}"];
-        }
+      };
-        }
-      '';
     };
   };
 
@@ -72,6 +72,17 @@ in {
         type = either package (listOf str);
         default = servers.${cfg.lsp.server}.package;
       };
+
+      options = mkOption {
+        type = lspOptions;
+        default = servers.${cfg.lsp.server}.options;
+        description = ''
+          LSP options for Elixir language support.
+
+          This option is freeform, you may add options that are not set by default
+          and they will be merged into the final table passed to lspconfig.
+        '';
+      };
     };
 
     format = {
@@ -102,8 +113,12 @@ in {
     })
 
     (mkIf cfg.lsp.enable {
-      vim.lsp.lspconfig.enable = true;
+      vim.lsp.lspconfig = {
-      vim.lsp.lspconfig.sources.elixir-lsp = servers.${cfg.lsp.server}.lspConfig;
+        enable = true;
+        sources.elixir-lsp = ''
+          lspconfig.${toLuaObject cfg.lsp.server}.setup(${toLuaObject cfg.lsp.options})
+        '';
+      };
     })
 
     (mkIf cfg.format.enable {

modules/plugins/languages/go.nix

@@ -7,11 +7,13 @@
   inherit (builtins) attrNames;
   inherit (lib.options) mkEnableOption mkOption;
   inherit (lib.modules) mkIf mkMerge;
-  inherit (lib.meta) getExe;
-  inherit (lib.lists) isList;
   inherit (lib.types) bool enum either listOf package str;
+  inherit (lib.lists) isList;
+  inherit (lib.meta) getExe;
+  inherit (lib.generators) mkLuaInline;
   inherit (lib.nvim.types) mkGrammarOption;
-  inherit (lib.nvim.lua) expToLua;
+  inherit (lib.nvim.languages) lspOptions;
+  inherit (lib.nvim.lua) expToLua toLuaObject;
   inherit (lib.nvim.dag) entryAfter;
 
   cfg = config.vim.languages.go;
@@ -20,17 +22,16 @@
   servers = {
     gopls = {
       package = pkgs.gopls;
-      lspConfig = ''
+      options = {
-        lspconfig.gopls.setup {
+        capabilities = mkLuaInline "capabilities";
-          capabilities = capabilities;
+        on_attach = mkLuaInline "default_on_attach";
-          on_attach = default_on_attach;
+        filetypes = ["go" "gomod" "gowork" "gotmpl"];
-          cmd = ${
+        cmd =
           if isList cfg.lsp.package
           then expToLua cfg.lsp.package
-          else ''{"${cfg.lsp.package}/bin/gopls", "serve"}''
+          else ["${getExe cfg.lsp.package}" "serve"];
-        },
+        single_file_support = true;
-        }
+      };
-      '';
     };
   };
 
@@ -102,6 +103,17 @@ in {
         type = either package (listOf str);
         default = servers.${cfg.lsp.server}.package;
       };
+
+      options = mkOption {
+        type = lspOptions;
+        default = servers.${cfg.lsp.server}.options;
+        description = ''
+          LSP options for Go language support.
+
+          This option is freeform, you may add options that are not set by default
+          and they will be merged into the final table passed to lspconfig.
+        '';
+      };
     };
 
     format = {
@@ -148,8 +160,12 @@ in {
     })
 
     (mkIf cfg.lsp.enable {
-      vim.lsp.lspconfig.enable = true;
+      vim.lsp.lspconfig = {
-      vim.lsp.lspconfig.sources.go-lsp = servers.${cfg.lsp.server}.lspConfig;
+        enable = true;
+        sources.go-lsp = ''
+          lspconfig.${toLuaObject cfg.lsp.server}.setup(${toLuaObject cfg.lsp.options})
+        '';
+      };
     })
 
     (mkIf cfg.format.enable {

modules/plugins/languages/hcl.nix

@@ -8,6 +8,11 @@
   inherit (lib.options) mkEnableOption mkOption;
   inherit (lib.modules) mkIf mkMerge;
   inherit (lib.types) package bool enum;
+  inherit (lib.lists) isList;
+  inherit (lib.meta) getExe;
+  inherit (lib.generators) mkLuaInline;
+  inherit (lib.lua) expToLua toLuaObject;
+  inherit (lib.nvim.languages) lspOptions;
   inherit (lib.nvim.types) mkGrammarOption;
 
   cfg = config.vim.languages.hcl;
@@ -16,13 +21,15 @@
   servers = {
     terraform-ls = {
       package = pkgs.terraform-ls;
-      lspConfig = ''
+      options = {
-        lspconfig.terraformls.setup {
+        capabilities = mkLuaInline "capabilities";
-          capabilities = capabilities,
+        on_attach = mkLuaInline "default_on_attach";
-          on_attach=default_on_attach,
+        filetypes = ["terraform" "hcl"];
-          cmd = {"${lib.getExe cfg.lsp.package}", "serve"},
+        cmd =
-        }
+          if isList cfg.lsp.package
-      '';
+          then expToLua cfg.lsp.package
+          else ["${getExe cfg.lsp.package}" "serve"];
+      };
     };
   };
 
@@ -51,12 +58,30 @@ in {
 
     lsp = {
       enable = mkEnableOption "HCL LSP support (terraform-ls)" // {default = config.vim.languages.enableLSP;};
+
       # TODO: (maybe, is it better?) it would be cooler to use vscode-extensions.hashicorp.hcl probably, shouldn't be too hard
       package = mkOption {
         type = package;
         default = servers.${defaultServer}.package;
         description = "HCL language server package (terraform-ls)";
       };
+
+      server = mkOption {
+        description = "HCL LSP server to use";
+        type = enum (attrNames servers);
+        default = defaultServer;
+      };
+
+      options = mkOption {
+        type = lspOptions;
+        default = servers.${cfg.lsp.server}.options;
+        description = ''
+          LSP options for HCL language support.
+
+          This option is freeform, you may add options that are not set by default
+          and they will be merged into the final table passed to lspconfig.
+        '';
+      };
     };
 
     format = {
@@ -65,11 +90,13 @@ in {
         default = config.vim.languages.enableFormat;
         description = "Enable HCL formatting";
       };
+
       type = mkOption {
         type = enum (attrNames formats);
         default = defaultFormat;
         description = "HCL formatter to use";
       };
+
       package = mkOption {
         type = package;
         default = formats.${cfg.format.type}.package;
@@ -80,7 +107,7 @@ in {
 
   config = mkIf cfg.enable (mkMerge [
     {
-      # hcl style official: https://developer.hashicorp.com/terraform/language/style#code-formatting
+      # HCL style official: https://developer.hashicorp.com/terraform/language/style#code-formatting
       vim.pluginRC.hcl = ''
         vim.api.nvim_create_autocmd("FileType", {
           pattern = "hcl",
@@ -97,15 +124,18 @@ in {
           .set('hcl', '#%s')
       '';
     }
+
     (mkIf cfg.treesitter.enable {
       vim.treesitter.enable = true;
       vim.treesitter.grammars = [cfg.treesitter.package];
     })
 
     (mkIf cfg.lsp.enable {
-      vim.lsp.lspconfig.enable = true;
+      vim.lsp.lspconfig = {
-      vim.lsp.lspconfig.sources = lib.optionalAttrs (! config.vim.languages.terraform.lsp.enable) {
+        enable = true;
-        terraform-ls = servers.${cfg.lsp.server}.lspConfig;
+        sources.hcl-lsp = lib.optionalString (!config.vim.languages.terraform.lsp.enable) ''
+          lspconfig.${toLuaObject cfg.lsp.server}.setup(${toLuaObject cfg.lsp.options})
+        '';
       };
     })