debugging via nvim-dap

debugging.lua

-- ~/.config/nvim/lua/plugins/debugging.lua

-- https://github.com/mfussenegger/nvim-dap
-- https://github.com/jay-babu/mason-nvim-dap.nvim
return {
    "mfussenegger/nvim-dap",
    dependencies = {
        "vadimcn/codelldb",            -- lldb
        "Microsoft/vscode-cpptools",   -- gdb
        "rcarriga/nvim-dap-ui",
        "jay-babu/mason-nvim-dap.nvim",
        "tpope/vim-fugitive",
    },
    config = function()
        local dap, dapui,mnd = require("dap"), require("dapui"), require("mason-nvim-dap")
        dapui.setup({})
        mnd.setup({
            ensure_installed = { 'cppdbg', 'codelldb', 'bash', 'python' }
        })

        require('dap.ext.vscode').load_launchjs(nil, { cppdbg = {'c', 'cpp'} })

        vim.fn.sign_define('DapBreakpoint', {text='🛑', texthl='', linehl='', numhl=''})

        dap.adapters.cppdbg = {
            id = 'cppdbg',
            type = 'executable',
            command = os.getenv("HOME") .. '/.local/share/nvim/mason/packages/cpptools/extension/debugAdapters/bin/OpenDebugAD7'
        }

        dap.configurations.cpp = {
            {
                type = 'cppdbg';
                request = 'launch';
                name = "Launch CPP";
                MIMode= "gdb",
                miDebuggerPath= "/bin/gdb",
                miDebuggerArgs= "--nh",
                --MIMode= "lldb",
                --miDebuggerPath= "/bin/lldb",
                program= "build/cppmain",
                cwd = os.getenv("PWD"),
                args = { "1", "2", "3", "4" },
            },
        }

        dap.set_log_level('TRACE')

        --require("cpptools") -- use gdb
        --require("codelldb") -- use lldb

        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

        --[[
        vim.keymap.set("n", "<Leader>dt", ":DapToggleBreakpoint<CR>")
		vim.keymap.set("n", "<Leader>dc", ":DapContinue<CR>")
		vim.keymap.set("n", "<Leader>dx", ":DapTerminate<CR>")
		vim.keymap.set("n", "<Leader>do", ":DapStepOver<CR>")
        --]]

        vim.keymap.set('n', '<Leader>dc', function() dap.continue() end)
        vim.keymap.set('n', '<Leader>do', function() dap.step_over() end)
        vim.keymap.set('n', '<Leader>di', function() dap.step_into() end)
        vim.keymap.set('n', '<Leader>dr', function() dap.step_out() end)
        vim.keymap.set('n', '<Leader>dt', function() dap.toggle_breakpoint() end)
        vim.keymap.set('n', '<Leader>db', function() dap.set_breakpoint() end)
        vim.keymap.set('n', '<Leader>dl', function() dap.set_breakpoint(nil, nil, vim.fn.input('Log point message: ')) end)
        vim.keymap.set('n', '<Leader>dO', function() dap.repl.open() end)
        vim.keymap.set('n', '<Leader>dl', function() dap.run_last() end)
        vim.keymap.set({'n', 'v'}, '<Leader>dh', function()
            require('dap.ui.widgets').hover()
        end)
        vim.keymap.set({'n', 'v'}, '<Leader>dp', function()
            require('dap.ui.widgets').preview()
        end)
        vim.keymap.set('n', '<Leader>df', function()
            local widgets = require('dap.ui.widgets')
            widgets.centered_float(widgets.frames)
        end)
        vim.keymap.set('n', '<Leader>ds', function()
            local widgets = require('dap.ui.widgets')
            widgets.centered_float(widgets.scopes)
        end)
    end,
}