improve nvim debugging experience

dot_config/nvim/lua/custom/configs/nvim-dap-ui.lua

@@ -0,0 +1,14 @@
+local dap, dapui = require("dap"), require("dapui")
+dap.listeners.before.attach.dapui_config = function()
+  dapui.open()
+end
+dap.listeners.before.launch.dapui_config = function()
+  dapui.open()
+end
+dap.listeners.before.event_terminated.dapui_config = function()
+  dapui.close()
+end
+dap.listeners.before.event_exited.dapui_config = function()
+  dapui.close()
+end
+

dot_config/nvim/lua/custom/mappings.lua

@@ -7,13 +7,34 @@ M.dap = {
       "<cmd> DapToggleBreakpoint <CR>",
       "Add breakpoint at line"
     },
+    ["<leader>dc"] = {
+      "<cmd> DapContinue <CR>",
+      "Debug - continue"
+    },
+    ["<leader>dsi"] = {
+      "<cmd> DapStepInto <CR>",
+      "Debug - step into"
+    },
+    ["<leader>dn"] = {
+      "<cmd> DapStepOver <CR>",
+      "Debug - step over (next)"
+    },
+    ["<leader>dso"] = {
+      "<cmd> DapStepOut <CR>",
+      "Debug - step out"
+    },
+    ["<leader>dt"] = {
+      "<cmd> DapTerminate <CR>",
+      "Debug - terminate"
+    },
     ["<leader>dus"] = {
       function ()
-        local widgets = require('dap.ui.widgets');
-        local sidebar = widgets.sidebar(widgets.scopes);
-        sidebar.open();
+        require("dapui").toggle();
+        -- local widgets = require('dap.ui.widgets');
+        -- local sidebar = widgets.sidebar(widgets.scopes);
+        -- sidebar.open();
       end,
-      "Open debugging sidebar"
+      "Toggle debugging interface"
     }
   }
 }
@@ -29,13 +50,25 @@ M.dap_go = {
     },
     ["<leader>dgl"] = {
       function()
-        require("dap-go").debug_last()
+        require("dap-go").debug_last_test()
       end,
       "Debug last go test"
     },
   }
 }
 
+M.dap_ui = {
+  plugin = true,
+  n = {
+    ["È"] = { -- alt+k
+      function()
+        require("dapui").eval()
+      end,
+      "Debug - eval expression"
+    }
+  }
+}
+
 M.terminal = {
   t = {
     ["<Esc>"] = {"<C-\\><C-n>"}

dot_config/nvim/lua/custom/plugins.lua

@@ -22,6 +22,16 @@ local plugins = {
       require("core.utils").load_mappings("dap_go")
     end,
   },
+  {
+    "rcarriga/nvim-dap-ui", -- UI for the DAP debugger
+    ft = "go",
+    dependencies = "mfussenegger/nvim-dap",
+    config = function()
+      require("dapui").setup()
+      require "custom.configs.nvim-dap-ui"
+      require("core.utils").load_mappings("dap_ui")
+    end,
+  },
   {
     "neovim/nvim-lspconfig", -- load custom lsp config
     config = function()
@@ -45,6 +55,6 @@ local plugins = {
     build = function()
       vim.cmd [[silent! GoInstallDeps]]
     end,
-  }
+  },
 }
 return plugins