nixvim(gdb): install and config dap for gdb (and which-key)

dap: debugger adapter protocol

home-manager/flake.lock

@@ -526,7 +526,7 @@
       },
       "locked": {
         "lastModified": 1,
-        "narHash": "sha256-j/1eDZv4tFf5CT3KAnsNsmSAkgUUnUed1NZRtmwrOzc=",
+        "narHash": "sha256-e9cx42Et2WPfIxGy6d3zuNb85KWzNi5GnM7mABJtsec=",
         "path": "./nixvim",
         "type": "path"
       },

home-manager/nixvim/config/dap.nix

@@ -0,0 +1,188 @@
+{
+  plugins.dap = {
+    enable = true;
+    extensions = {
+      dap-ui.enable = true;
+      dap-virtual-text.enable = true;
+    };
+    adapters = {
+      executables = {
+        gdb = {
+          command = "gdb";
+          args = [ "-i" "dap" ];
+        };
+      };
+    };
+    configurations = {
+      c = [
+        {
+          name = "Launch";
+          type = "gdb";
+          request = "launch";
+          program.__raw = # lua
+            ''
+              function()
+                return vim.fn.input("Path to executable: ", vim.fn.getcwd() .. '/', "file")
+              end
+            '';
+          args.__raw = # lua
+            ''
+              function()
+                return vim.fn.input("Args: ", "", "file")
+              end
+            '';
+          cwd = ''''${workspacefolder}'';
+          stopOnEntry = false;
+        }
+      ];
+    };
+  };
+
+  keymaps = [
+    {
+      mode = "n";
+      key = "<leader>db";
+      action = ":DapToggleBreakpoint<cr>";
+      options.desc = "Toggle Breakpoint";
+    }
+    {
+      mode = "n";
+      key = "<leader>dc";
+      action = ":DapContinue<cr>";
+      options.desc = "Continue";
+    }
+    {
+      mode = "n";
+      key = "<leader>da";
+      action = "<cmd>lua require('dap').continue({ before = get_args })<cr>";
+      options = {
+        silent = true;
+        desc = "Run with Args";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>dC";
+      action = "<cmd>lua require('dap').run_to_cursor()<cr>";
+      options = {
+        silent = true;
+        desc = "Run to cursor";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>dg";
+      action = "<cmd>lua require('dap').goto_()<cr>";
+      options = {
+        silent = true;
+        desc = "Go to line (no execute)";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>di";
+      action = ":DapStepInto<cr>";
+      options = {
+        silent = true;
+        desc = "Step into";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>dj";
+      action = "
+        <cmd>lua require('dap').down()<cr>
+      ";
+      options = {
+        silent = true;
+        desc = "Down";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>dk";
+      action = "<cmd>lua require('dap').up()<cr>";
+      options = {
+        silent = true;
+        desc = "Up";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>dl";
+      action = "<cmd>lua require('dap').run_last()<cr>";
+      options = {
+        silent = true;
+        desc = "Run Last";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>do";
+      action = ":DapStepOut<cr>";
+      options = {
+        silent = true;
+        desc = "Step Out";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>dO";
+      action = ":DapStepOver<cr>";
+      options = {
+        silent = true;
+        desc = "Step Over";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>dp";
+      action = "<cmd>lua require('dap').pause()<cr>";
+      options = {
+        silent = true;
+        desc = "Pause";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>dr";
+      action = ":DapToggleRepl<cr>";
+      options = {
+        silent = true;
+        desc = "Toggle REPL";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>ds";
+      action = "<cmd>lua require('dap').session()<cr>";
+      options = {
+        silent = true;
+        desc = "Session";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>dt";
+      action = ":DapTerminate<cr>";
+      options = {
+        silent = true;
+        desc = "Terminate";
+      };
+    }
+    {
+      mode = "n";
+      key = "<leader>du";
+      action.__raw = # lua
+        ''
+          function()
+            require("dapui").toggle()
+          end
+        '';
+      options = {
+        desc = "Toggle Debugger UI";
+        silent = true;
+      };
+    }
+  ];
+}

home-manager/nixvim/config/default.nix

@@ -8,6 +8,7 @@
     # appearence
     ./bufferline.nix
     ./lualine.nix
+    ./which-key.nix
 
     # file and search utilities
     ./telescope.nix
@@ -18,6 +19,9 @@
     ./treesitter.nix
     ./nix.nix
 
+    # debugging
+    ./dap.nix
+
     # autocompletion
     ./cmp.nix
   ];

home-manager/nixvim/config/which-key.nix

@@ -0,0 +1,3 @@
+{
+  plugins.which-key.enable = true;
+}