From 3784061378fdbeb9ab6c9ca6004d16fbaa3afdbb Mon Sep 17 00:00:00 2001
From: kossLAN <kosslan@kosslan.dev>
Date: Sun, 17 Nov 2024 03:59:26 -0500
Subject: [PATCH] dap: add dapui & add lldb-dap support

---
 flake.lock             | 12 +++---
 nix/neovim-overlay.nix |  5 +--
 nvim/init.lua          |  1 -
 nvim/plugin/dap.lua    | 85 +++++++++++++++++++++++++++++-------------
 4 files changed, 67 insertions(+), 36 deletions(-)

diff --git a/flake.lock b/flake.lock
index 9aa325e..9a648ae 100644
--- a/flake.lock
+++ b/flake.lock
@@ -39,11 +39,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1726560853,
-        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
         "type": "github"
       },
       "original": {
@@ -181,11 +181,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1730531603,
-        "narHash": "sha256-Dqg6si5CqIzm87sp57j5nTaeBbWhHFaVyG7V6L8k3lY=",
+        "lastModified": 1731676054,
+        "narHash": "sha256-OZiZ3m8SCMfh3B6bfGC/Bm4x3qc1m2SVEAlkV6iY7Yg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "7ffd9ae656aec493492b44d0ddfb28e79a1ea25d",
+        "rev": "5e4fbfb6b3de1aa2872b76d49fafc942626e2add",
         "type": "github"
       },
       "original": {
diff --git a/nix/neovim-overlay.nix b/nix/neovim-overlay.nix
index 1f37e04..a67d3f2 100644
--- a/nix/neovim-overlay.nix
+++ b/nix/neovim-overlay.nix
@@ -87,6 +87,7 @@ with final.pkgs.lib; let
     mini-nvim # https://github.com/echasnovski/mini.nvim/
     # Debugging
     nvim-dap
+    nvim-dap-ui
     # Notifications
     nvim-notify
     fidget-nvim
@@ -113,10 +114,6 @@ with final.pkgs.lib; let
     rustfmt # rust formatter
     prettierd # typescript/javascript formatter
     # google-java-format # java formatter based off google guidelines
-
-    # misc
-    nodejs # eww
-    gcc
   ];
 in {
   # This is the neovim derivation
diff --git a/nvim/init.lua b/nvim/init.lua
index 0a1a79d..4c6ee93 100644
--- a/nvim/init.lua
+++ b/nvim/init.lua
@@ -52,7 +52,6 @@ vim.schedule(function()
 end)
 
 -- Configure Neovim diagnostic messages
-
 local function prefix_diagnostic(prefix, diagnostic)
   return string.format(prefix .. ' %s', diagnostic.message)
 end
diff --git a/nvim/plugin/dap.lua b/nvim/plugin/dap.lua
index ad838ce..94e6165 100644
--- a/nvim/plugin/dap.lua
+++ b/nvim/plugin/dap.lua
@@ -1,30 +1,65 @@
+-- For some reason this nvim-dap doesn't wan't to find lldb-dap executable...
+local function get_binary_path(binary)
+  local handle = io.popen('whereis -b ' .. binary .. ' | cut -d" " -f2')
+  if handle then
+    local result = handle:read('*a')
+    handle:close()
+    return result:gsub('\n', '') -- Remove trailing newline
+  end
+  return nil
+end
+
 local dap = require('dap')
-dap.adapters.gdb = {
-  type = 'executable',
-  command = 'gdb',
-  args = { '-i', 'dap' },
-}
-
-dap.configurations.c = {
-  {
-    name = 'Launch',
-    type = 'gdb',
-    request = 'launch',
-    program = function()
-      return vim.fn.input('Path to executable: ', vim.fn.getcwd() .. '/', 'file')
-    end,
-    stopAtBeginningOfMainSubprogram = false,
+dap.adapters = {
+  lldb = {
+    type = 'executable',
+    command = get_binary_path('lldb-dap'),
+    name = 'lldb',
+  },
+  gdb = {
+    type = 'executable',
+    command = 'gdb',
+    args = { '-i', 'dap' },
   },
 }
 
-dap.configurations.cpp = {
-  {
-    name = 'Launch',
-    type = 'gdb',
-    request = 'launch',
-    program = function()
-      return vim.fn.input('Path to executable: ', vim.fn.getcwd() .. '/', 'file')
-    end,
-    stopAtBeginningOfMainSubprogram = false,
-  },
+local lldb = {
+  name = 'lldb',
+  type = 'lldb',
+  request = 'launch',
+  program = function()
+    return vim.fn.input('Path to executable: ', vim.fn.getcwd() .. '/', 'file')
+  end,
+  cwd = '${workspaceFolder}',
+  stopOnEntry = false,
+  args = {},
+  runInTerminal = true,
 }
+
+local gdb = {
+  name = 'gdb',
+  type = 'gdb',
+  request = 'launch',
+  program = function()
+    return vim.fn.input('Path to executable: ', vim.fn.getcwd() .. '/', 'file')
+  end,
+  cwd = '${workspaceFolder}',
+}
+
+dap.configurations.c = { lldb, gdb }
+dap.configurations.cpp = { lldb, gdb }
+dap.configurations.rust = lldb
+
+-- DAP UI
+local dapui = require('dapui')
+dapui.setup()
+
+dap.listeners.after.event_initialized['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