nvim: add bind to run test input for debugger

.gitmodules

@@ -40,12 +40,6 @@
 	path = src/.local/share/nvim/site/pack/3pp/start/auto-pairs
 	url = https://github.com/jiangmiao/auto-pairs
 
-# debugging and stuff
-# vimspector.vim
-[submodule "src/.local/share/nvim/site/pack/3pp/start/vimspector"]
-	path = src/.local/share/nvim/site/pack/3pp/start/vimspector
-	url = https://github.com/puremourning/vimspector.git
-
 # language smarts
 # coding.lua
 [submodule "src/.local/share/nvim/site/pack/3pp/start/nvim-lspconfig"]

programs

@@ -131,10 +131,12 @@ python-black
 bash-language-server
 vscode-css-languageserver
 rust-analyzer
+gdb
+lldb
+python-debugpy
 arc-gtk-theme
 lxappearance-gtk3
 radare2
-gdb
 typst
 
 # .local/bin/pyinstantref script

src/.clang-format

@@ -0,0 +1,5 @@
+---
+BasedOnStyle: LLVM
+UseTab: Always
+IndentWidth: 4
+TabWidth: 4

src/.config/nvim/lua/debugging.lua

@@ -6,6 +6,8 @@ local keymap = confutil.keymap
 local dap = require("dap")
 local dapui = require("dapui")
 
+local M = {}
+
 --------------------------------
 --------------------------------
 -- dap-ui configuration
@@ -16,9 +18,13 @@ local dapui = require("dapui")
 -- key bindings
 ----------------
 
-keymap("<leader>dd", dapui.setup)
 keymap("<leader>rs", dap.continue)
-keymap("<leader>rt", dap.restart)
+keymap("<leader>rt", function()
+	-- hard restart (lldb just stops when restarted)
+	dap.terminate()
+	vim.cmd.sleep("100m")
+	dap.continue()
+end)
 keymap("<leader>rr", dap.terminate)
 keymap("<c-p>", dap.step_into)
 keymap("<c-n>", dap.step_over)
@@ -40,9 +46,9 @@ dapui.setup({
 		enabled = false,
 	},
 	icons = {
-		collapsed = ">",
-		current_frame = ">",
-		expanded = "v",
+		current_frame = "→",
+		collapsed = "►",
+		expanded = "▼",
 	},
 	layouts = {
 		{
@@ -90,10 +96,10 @@ end
 dap.listeners.after.attach.dapui_config = function()
 	dapui.open()
 end
-dap.listeners.after.event_terminated.dapui_config = function()
+dap.listeners.before.event_terminated.dapui_config = function()
 	dapui.close()
 end
-dap.listeners.after.event_exited.dapui_config = function()
+dap.listeners.before.event_exited.dapui_config = function()
 	dapui.close()
 end
 
@@ -110,7 +116,60 @@ vim.cmd [[ sign define DapBreakpointCondition text=◒ ]]
 --------------------------------
 --------------------------------
 
+----------------
+-- debug directory utilities
+----------------
+
+local function gf(file)
+	return file or vim.fn.expand("%:p")
+end
+
+function M.dbg_dir(file)
+	-- get a directory to store files needed for debugging
+	-- like ad hoc test cases, or compiled binaries
+	local dir = assert(vim.env.XDG_CACHE_HOME, "$XDG_CACHE_HOME is unset") .. "/nvimdbg"
+	local file = gf(file)
+	local subdir = dir .. file
+	assert(vim.fn.mkdir(subdir, "p"), "Could not create debug directory.")
+	return subdir
+end
+
+function compile(file)
+	local file = gf(file)
+	local subdir = M.dbg_dir(file)
+	vim.fn.execute("make " .. subdir .. "/binary " .. "-f $XDG_CONFIG_HOME/nvim/makefile")
+end
+keymap("<leader>dc", compile)
+
+function write_input(file)
+	-- store ad hoc test input from clipboard
+	local file = gf(file)
+	local inp_file = M.dbg_dir(file) .. "/input"
+	vim.fn.writefile(vim.fn.getreg("+", 1, 1), inp_file)
+end
+function run_input(file)
+	local file = gf(file)
+	if not dapui.elements.console then
+		print("Unable to feed input: no console found")
+		return
+	end
+	vim.api.nvim_buf_call(dapui.elements.console.buffer(), function()
+		vim.b.nvimdbg_inp_file = M.dbg_dir(file) .. "/input"
+		vim.cmd [[
+		let @x = join(readfile(b:nvimdbg_inp_file), "\n") .. "\n\n"
+		normal G"xp
+		]]
+
+	end)
+end
+keymap("<leader>rw", write_input)
+keymap("<leader>ri", run_input)
+
+
+----------------
+-- python
 -- https://github.com/mfussenegger/nvim-dap/wiki/Debug-Adapter-installation#python
+----------------
 dap.adapters.python = function(cb, config)
 	if config.request == 'attach' then
 		assert(false, "attach not implemented")
@@ -140,3 +199,34 @@ dap.configurations.python = {
 		console = "integratedTerminal";
 	}
 }
+
+----------------
+-- c++
+-- https://github.com/mfussenegger/nvim-dap/wiki/Debug-Adapter-installation#ccrust-via-gdb
+----------------
+dap.adapters.lldb = {
+	type = "executable",
+	command = "/usr/bin/lldb-vscode",
+	name = "lldb"
+}
+
+dap.configurations.cpp = {
+	{
+		name = "launch binary",
+		type = "lldb",
+		request = "launch",
+		program = function()
+			local binary = M.dbg_dir() .. "/binary"
+			if not vim.fn.filereadable(binary) then
+				binary = vim.fn.input("binary: ", vim.fn.getcwd() .. "/", "file")
+			end
+
+			return binary
+		end,
+		cwd = "${workspaceFolder}",
+		stopOnEntry = false,
+		runInTerminal = true,
+	}
+}
+
+return M

src/.config/nvim/makefile

@@ -1,9 +1,9 @@
 # makefile for compiling individual files from vim
 
-~/.cache/termdebug/bin/%: %.cpp
-	@mkdir -p $(@D)
+DBG_DIR=$(XDG_CACHE_HOME)/nvimdbg
+
+$(DBG_DIR)%.cpp/binary: %.cpp
 	$(LINK.cpp) -g -Wall -Wpedantic -std=c++20 $^ $(LOADLIBES) $(LDLIBS) -o $@
 
-~/.cache/termdebug/bin/%: %.c
-	@mkdir -p $(@D)
+$(DBG_DIR)%.c/binary: %.c
 	$(LINK.c) -g -Wall -Wpedantic $^ $(LOADLIBES) $(LDLIBS) -o $@