refactor: make debug functionality better.

lua/modules/configs/tool/dap/dap-cpptools.lua

@@ -0,0 +1,45 @@
+local dap = require("dap")
+
+-- https://github.com/mfussenegger/nvim-dap/wiki/C-C---Rust-(gdb-via--vscode-cpptools)
+local gdb_abspath = vim.fn.exepath("gdb")
+local cpptools_abspath = vim.fn.stdpath("data") .. "/dap/cpptools/extension/debugAdapters/bin/OpenDebugAD7"
+local path_to_program = require("modules.configs.tool.dap.dap-utils").path_to_program()
+local get_env = require("modules.configs.tool.dap.dap-utils").get_env()
+local setupCommands = {
+	text = "-enable-pretty-printing",
+	description = "enable pretty printing",
+	ignoreFailures = false,
+}
+
+dap.adapters.cppdbg = {
+	id = "cppdbg",
+	type = "executable",
+	command = cpptools_abspath,
+}
+dap.configurations.cpp = {
+	{
+		name = "Launch file",
+		type = "cppdbg",
+		request = "launch",
+		program = path_to_program,
+		cwd = "${workspaceFolder}",
+		env = get_env,
+		setupCommands = setupCommands,
+		stopAtEntry = false,
+	},
+	{
+		name = "Attach to gdbserver :1234",
+		type = "cppdbg",
+		request = "launch",
+		MIMode = "gdb",
+		miDebuggerServerAddress = "localhost:1234",
+		miDebuggerPath = gdb_abspath,
+		program = path_to_program,
+		cwd = "${workspaceFolder}",
+		env = get_env,
+		setupCommands = setupCommands,
+	},
+}
+
+dap.configurations.c = dap.configurations.cpp
+dap.configurations.rust = dap.configurations.cpp

lua/modules/configs/tool/dap/dap-debugpy.lua

@@ -4,19 +4,41 @@ local function isempty(s)
 	return s == nil or s == ""
 end
 
-dap.adapters.python = {
-	type = "executable",
-	command = "python",
-	args = { "-m", "debugpy.adapter" },
-}
+local debugpy_abspath = vim.fn.stdpath("data") .. "/dap/debugpy/"
+
+-- https://github.com/mfussenegger/nvim-dap/wiki/Debug-Adapter-installation#python
+dap.adapters.python = function(cb, config)
+	if config.request == "attach" then
+		---@diagnostic disable-next-line: undefined-field
+		local port = (config.connect or config).port
+		---@diagnostic disable-next-line: undefined-field
+		local host = (config.connect or config).host or "127.0.0.1"
+		cb({
+			type = "server",
+			port = assert(port, "`connect.port` is required for a python `attach` configuration"),
+			host = host,
+			options = {
+				source_filetype = "python",
+			},
+		})
+	else
+		cb({
+			type = "executable",
+			command = debugpy_abspath .. "bin/python",
+			args = { "-m", "debugpy.adapter" },
+			options = {
+				source_filetype = "python",
+			},
+		})
+	end
+end
 dap.configurations.python = {
 	{
 		-- The first three options are required by nvim-dap
 		type = "python", -- the type here established the link to the adapter definition: `dap.adapters.python`
 		request = "launch",
 		name = "Launch file",
 		-- Options below are for debugpy, see https://github.com/microsoft/debugpy/wiki/Debug-configuration-settings for supported options
-
 		program = "${file}", -- This configuration will launch the current file if used.
 		pythonPath = function()
 			if not isempty(vim.env.CONDA_PREFIX) then

lua/modules/configs/tool/dap/dap-lldb.lua

@@ -1,25 +1,26 @@
 local dap = require("dap")
 
+-- https://github.com/mfussenegger/nvim-dap/wiki/Debug-Adapter-installation#ccrust-via-lldb-vscode
+local lldb_abspath = vim.fn.exepath("lldb-vscode")
+local path_to_program = require("modules.configs.tool.dap.dap-utils").path_to_program()
+local get_env = require("modules.configs.tool.dap.dap-utils").get_env()
+local input_args = require("modules.configs.tool.dap.dap-utils").input_args()
+
 dap.adapters.lldb = {
 	type = "executable",
-	command = "lldb-vscode",
+	command = lldb_abspath,
 	name = "lldb",
 }
 dap.configurations.cpp = {
 	{
 		name = "Launch",
 		type = "lldb",
 		request = "launch",
-		program = function()
-			return vim.fn.input("Path to executable: ", vim.fn.getcwd() .. "/", "file")
-		end,
+		program = path_to_program,
 		cwd = "${workspaceFolder}",
+		env = get_env,
+		args = input_args,
 		stopOnEntry = false,
-		args = function()
-			local input = vim.fn.input("Input args: ")
-			return vim.fn.split(input, " ", true)
-		end,
-
 		-- if you change `runInTerminal` to true, you might need to change the yama/ptrace_scope setting:
 		--
 		--    echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope

lua/modules/configs/tool/dap/dap-utils.lua

@@ -0,0 +1,20 @@
+local M = {}
+
+function M.path_to_program()
+	return vim.fn.input("Path to program: ", vim.fn.expand("%:p:r"), "file")
+end
+
+function M.get_env()
+	local variables = {}
+	for k, v in pairs(vim.fn.environ()) do
+		table.insert(variables, string.format("%s=%s", k, v))
+	end
+	return variables
+end
+
+function M.input_args()
+	local input = vim.fn.input("Input args: ")
+	return vim.fn.split(input, " ", true)
+end
+
+return M

lua/modules/configs/tool/dap/init.lua

@@ -34,7 +34,8 @@ return function()
 	vim.fn.sign_define("DapLogPoint", { text = icons.dap.LogPoint, texthl = "DapLogPoint", linehl = "", numhl = "" })
 
 	-- Config lang adaptors
-	require("tool.dap.dap-lldb")
+	-- require("tool.dap.dap-lldb")
+	require("tool.dap.dap-cpptools")
 	require("tool.dap.dap-debugpy")
 	require("tool.dap.dap-dlv")
 end