Working on go dap

flake.nix

@@ -18,6 +18,11 @@
     lightline-vim = { url = "github:itchyny/lightline.vim"; flake = false; };
     nvim-lspconfig = { url = "github:neovim/nvim-lspconfig"; flake = false; };
     completion-nvim = { url = "github:nvim-lua/completion-nvim"; flake = false; };
+    vim-nix = { url = "github:LnL7/vim-nix"; flake = false; };
+    nvim-dap = { url = github:mfussenegger/nvim-dap; flake = false; };
+
+    # Nix LSP
+    rnix-lsp.url = github:nix-community/rnix-lsp;
   };
 
   outputs = { nixpkgs, flake-utils, neovim, ... }@inputs:
@@ -30,6 +35,8 @@
           "lightline-vim"
           "nvim-lspconfig"
           "completion-nvim"
+          "vim-nix"
+          "nvim-dap"
         ];
 
         pluginOverlay = lib.buildPluginOverlay;
@@ -41,6 +48,7 @@
             pluginOverlay
             (final: prev: {
               neovim-nightly = neovim.defaultPackage.${system};
+              rnix-lsp = inputs.rnix-lsp.defaultPackage.${system};
             })
           ];
         };
@@ -72,7 +80,8 @@
             vim.statusline.lightline.enable = true;
             vim.lsp.enable = true;
             vim.lsp.bash = true;
-
+            vim.lsp.go = true;
+            vim.lsp.nix = true;
           };
         };
       });

go.mod

@@ -0,0 +1,3 @@
+module testbob
+
+go 1.15

main.go

@@ -0,0 +1,14 @@
+package main
+
+import ( "fmt" )
+
+func main() {
+  fmt.Println("Hey")
+  x := 7
+  foo()
+
+  fmt.Printf("%d", x)
+}
+
+func foo() {
+}

modules/lsp/default.nix

@@ -10,13 +10,18 @@ in {
     enable = mkEnableOption "Enable lsp support";
 
     bash = mkEnableOption "Enable Bash Language Support";
+    go = mkEnableOption "Enable Go Language Support";
+    nix = mkEnableOption "Enable NIX Language Support";
 
   };
 
   config = mkIf cfg.enable {
-    vim.startPlugins = with pkgs.neovimPlugins; [ nvim-lspconfig completion-nvim ];
-
-    # ["${pkgs.nodePackages.bash-language-server}/bin/bash-language-server" "start"];
+    vim.startPlugins = with pkgs.neovimPlugins; [ 
+      nvim-lspconfig 
+      completion-nvim 
+      nvim-dap
+      (if cfg.nix then vim-nix else null)
+    ];
 
     vim.configRC = ''
       " Use <Tab> and <S-Tab> to navigate through popup menu
@@ -27,18 +32,97 @@ in {
       set completeopt=menuone,noinsert,noselect
     '';
 
+    vim.nnoremap = {
+      "<f2>" = "<cmd>lua vim.lsp.buf.rename()<cr>";
+      "<leader>r" = "<cmd>lua vim.lsp.buf.rename()<cr>";
+      "<leader>d" = "<cmd>lua vim.lsp.buf.type_definition()<cr>";
+      "<leader>e" = "<cmd>lua vim.lsp.diagnostic.show_line_diagnostics()<cr>";
+      "<leader>f" = "<cmd>lua vim.lsp.buf.formatting()<CR>";
+      "<leader>k" = "<cmd>lua vim.lsp.buf.signature_help()<CR>";
+
+      gD = "<cmd>lua vim.lsp.buf.declaration()<CR>";
+      gd = "<cmd>lua vim.lsp.buf.definition()<CR>";
+      gi = "<cmd>lua vim.lsp.buf.implementation()<CR>";
+      gr = "<cmd>lua vim.lsp.buf.references()<CR>";
+      K = "<cmd>lua vim.lsp.buf.hover()<CR>";
+
+      "[d" = "<cmd>lua vim.lsp.diagnostic.goto_prev()<CR>";
+      "]d" = "<cmd>lua vim.lsp.diagnostic.goto_next()<CR>";
+
+      "<leader>q" = "<cmd>lua vim.lsp.diagnostic.set_loclist()<CR>";
+
+      # dap
+      "<F10>" = "lua require'dap'.step_over()<cr>";
+      "<F11>" = "lua require'dap'.step_into()<cr>";
+      "<F12>" = "lua require'dap'.step_out()<cr>";
+      "<F5>" = "lua require'dap'.continue()<cr>";
+      "<leader>b" = "lua require'dap'.toggle_breakpoint()<cr>";
+    };
+
     vim.globals = {
     };
 
     vim.luaConfigRC = ''
       local lspconfig = require'lspconfig'
+      local dap = require "dap"
 
       ${if cfg.bash then ''
         lspconfig.bashls.setup{
           on_attach=require'completion'.on_attach;
           cmd = {"${pkgs.nodePackages.bash-language-server}/bin/bash-language-server", "start"}
         }
       '' else ""}
+
+      ${if cfg.go then ''
+        lspconfig.gopls.setup{
+          on_attach=require'completion'.on_attach;
+          cmd = {"${pkgs.gopls}/bin/gopls"}
+        }
+
+        dap.adapters.go = function(callback, config)
+          local handle
+          local pid_or_err
+          local port = 38697
+          handle, pid_or_err =
+            vim.loop.spawn(
+            "dlv",
+            {
+              args = {"dap", "-l", "127.0.0.1:" .. port},
+              detached = true
+            },
+        function(code)
+          handle:close()
+          print("Delve exited with exit code: " .. code)
+        end
+          )
+          -- Wait 100ms for delve to start
+          vim.defer_fn(
+            function()
+              --dap.repl.open()
+              callback({type = "server", host = "127.0.0.1", port = port})
+            end,
+            100)
+
+
+          --callback({type = "server", host = "127.0.0.1", port = port})
+        end
+        -- https://github.com/go-delve/delve/blob/master/Documentation/usage/dlv_dap.md
+        dap.configurations.go = {
+          {
+            type = "go",
+            name = "Debug",
+            request = "launch",
+            program = "${pkgs.delve}/bin/delve"
+          }
+        }
+      '' else ""}
+
+      ${if cfg.nix then ''
+        lspconfig.rnix.setup{
+          on_attach=require'completion'.on_attach;
+          cmd = {"${pkgs.rnix-lsp}/bin/rnix-lsp"}
+        }
+      '' else ""}
     '';
   };
 }

test.sh

@@ -1,3 +1,6 @@
 #!/bin/sh
 
 echo "test"
+export TEST="Bar"
+
+echo "$TEST"