Debugger: add support for nvim-dap & codelldb

flake.nix

@@ -105,6 +105,9 @@
     plugin-cmp-treesitter.url = "github:ray-x/cmp-treesitter";
     plugin-cmp-treesitter.flake = false;
 
+    plugin-cmp-dap.url = "github:rcarriga/cmp-dap";
+    plugin-cmp-dap.flake = false;
+
     # snippets
     plugin-vim-vsnip.url = "github:hrsh7th/vim-vsnip";
     plugin-vim-vsnip.flake = false;
@@ -219,6 +222,7 @@
           enableFormat = overrideable true;
           enableTreesitter = overrideable true;
           enableExtraDiagnostics = overrideable true;
+          enableDebugger = overrideable true;
 
           nix.enable = overrideable true;
           markdown.enable = overrideable true;

modules/completion/default.nix

@@ -8,6 +8,8 @@ with lib;
 with builtins; let
   cfg = config.vim.autocomplete;
   lspkindEnabled = config.vim.lsp.enable && config.vim.lsp.lspkind.enable;
+  debuggerEnabled = config.vim.debugger.enable;
+
   builtSources =
     concatMapStringsSep
     "\n"
@@ -86,12 +88,14 @@ in {
   };
 
   config = mkIf cfg.enable {
-    vim.startPlugins = [
-      "nvim-cmp"
-      "cmp-buffer"
-      "cmp-vsnip"
-      "cmp-path"
-    ];
+    vim.startPlugins =
+      [
+        "nvim-cmp"
+        "cmp-buffer"
+        "cmp-vsnip"
+        "cmp-path"
+      ]
+      ++ optional debuggerEnabled "cmp-dap";
 
     vim.autocomplete.sources = {
       "nvim-cmp" = null;
@@ -175,12 +179,24 @@ in {
         then "lspkind.cmp_format(lspkind_opts)"
         else cfg.formatting.format
       },
-        }
+        },
+      ${optionalString debuggerEnabled ''
+        enabled = function()
+          return vim.api.nvim_buf_get_option(0, "buftype") ~= "prompt"
+            or require("cmp_dap").is_dap_buffer()
+        end,
+      ''}
       })
       ${optionalString (config.vim.autopairs.enable && config.vim.autopairs.type == "nvim-autopairs") ''
         local cmp_autopairs = require('nvim-autopairs.completion.cmp')
         cmp.event:on('confirm_done', cmp_autopairs.on_confirm_done({ map_char = { text = ""} }))
       ''}
+
+      ${optionalString debuggerEnabled ''
+        cmp.setup.filetype({ "dap-repl", "dapui_watches", "dapui_hover" }, {
+          sources = { name = "dap" };
+        })
+      ''}
     '');
 
     vim.snippets.vsnip.enable =

modules/debugger/default.nix

@@ -0,0 +1,58 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib;
+with builtins; let
+  cfg = config.vim.debugger;
+in {
+  options.vim.debugger = {
+    enable = mkEnableOption "LSP, also enabled automatically through null-ls and lspconfig options";
+
+    port = mkOption {
+      description = "Port to start the debugger on";
+      type = types.int;
+      default = 13000;
+    };
+
+    enrichConfig = mkOption {
+      description = "Lua script that enriches the config";
+      type = types.lines;
+      default = "";
+      example = nvim.nmd.literalAsciiDoc ''
+        [source,lua]
+        ---
+        if config["cargo"] ~= nil then on_config(cargo_inspector(config)) end
+        ---
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    vim.startPlugins = ["nvim-dap"];
+
+    vim.autocomplete.sources = {"nvim_lsp" = "[LSP]";};
+
+    vim.luaConfigRC.dap-setup = ''
+      local dap = require('dap')
+
+      local codelldb_bin = "${pkgs.code-lldb}/share/vscode/extensions/vadimcn.vscode-lldb/adapter/codelldb"
+      local codelldb_lib = "${pkgs.code-lldb}/share/vscode/extensions/vadimcn.vscode-lldb/lldb/lib/liblldb.dylib"
+      local port = "${port}",
+
+      dap.adapters.codelldb = {
+        type = 'server',
+        port = "${port}",
+        executable = {
+          command = codelldb_bin,
+          args = {"--liblldb", codelldb_lib, "--port", "${port}"},
+          enrich_config = function(config, on_config)
+            ${enrichConfig}
+          end,
+        }
+      }
+    '';
+  };
+}

modules/languages/default.nix

@@ -27,5 +27,6 @@ in {
     enableTreesitter = mkEnable "treesitter";
     enableFormat = mkEnable "formatting";
     enableExtraDiagnostics = mkEnable "extra diagnostics";
+    enableDebugger = mkEnable "debuggers";
   };
 }

modules/modules.nix

@@ -21,6 +21,7 @@
     ./telescope
     ./git
     ./build
+    ./debugger
   ];
 
   pkgsModule = {config, ...}: {