Add bash language server.

jrpotter/neovim/default.nix

@@ -65,6 +65,7 @@ in
   };
 
   imports = [
+    ./lang/bash.nix
     ./lang/lean.nix
     ./lang/lua.nix
     ./lang/nix.nix

jrpotter/neovim/lang/bash.nix

@@ -0,0 +1,13 @@
+{ pkgs, ... }:
+{
+  programs.neovim = {
+    nvim-lspconfig = ''
+      require('init.lsp').setup(require('lspconfig').bashls) {}
+    '';
+
+    extraPackages = with pkgs; [
+      nodePackages.bash-language-server
+      shellcheck
+    ];
+  };
+}