neovim/lsp: init

modules/neovim/init/default.nix

@@ -5,6 +5,7 @@
     ./debug.nix
     ./diagnostics.nix
     ./highlight.nix
+    ./lsp.nix
     ./spellcheck.nix
   ];
 }

modules/neovim/init/lsp.nix

@@ -0,0 +1,44 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib.modules) mkIf;
+  inherit (lib.options) mkOption;
+  inherit (lib.types) attrsOf;
+  inherit (lib.strings) concatLines;
+  inherit (lib.attrsets) mapAttrsToList attrNames filterAttrs;
+  inherit (lib.nvim.languages) lspOptions;
+  inherit (lib.nvim.dag) entryAnywhere;
+  inherit (lib.nvim.lua) toLuaObject;
+
+  cfg = config.vim.lsp;
+
+  lspConfigurations =
+    mapAttrsToList (
+      name: value: ''
+        vim.lsp.config["${name}"] = ${toLuaObject value}
+      ''
+    )
+    cfg.servers;
+
+  enabledServers = filterAttrs (_: u: u.enable) cfg.servers;
+in {
+  options = {
+    vim.lsp.servers = mkOption {
+      type = attrsOf lspOptions;
+      default = {};
+      description = "";
+    };
+  };
+
+  config = mkIf (cfg.servers != {}) {
+    vim.luaConfigRC.lsp-servers = entryAnywhere ''
+      -- Individual LSP configurations managed by nvf.
+      ${(concatLines lspConfigurations)}
+
+      -- Enable configured LSPs explicitly
+      vim.lsp.enable(${toLuaObject (attrNames enabledServers)})
+    '';
+  };
+}