First commit

.gitmodules

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+[submodule "StackTracePlus"]
+	path = StackTracePlus
+	url = https://github.com/ignacio/StackTracePlus.git

README.md

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+# StackTracePlus Minetest mod
+
+StackTracePlus is a Lua module that extends `debug.traceback` to include more
+call frame information such as local and globals, locals and parameters
+dumps.
+
+This mod merely plugs this module in and replaces `debug.traceback` with
+StackTracePlus's traceback dump routine.
+
+# Installing
+
+This repository uses git submodules.
+
+Clone this repo either recursively (`--recursive`) or as usual, but make sure
+to `git submodule update --init` afterwards; it must go into the `mods`
+directory.
+
+## Mod security
+
+This mod modifies the global `debug` table which is not accessible by normal
+mods when mod security is enabled.
+
+If you have enabled mod security (`secure.enable_security` is `true`), then you
+must whitelist this mod in `minetest.conf`'s `secure.trusted_mods` config
+entry.
+
+# License
+
+WTFPL / CC0 / Public Domain.
+
+StackTracePlus is distributed under the MIT license.

StackTracePlus

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+Subproject commit 9b4aef95854ad0cf549850cee6dbd0fef5a82bf6

init.lua

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+local secenv = _G
+local modname = minetest.get_current_modname()
+local sec = (minetest.setting_get('secure.enable_security') == 'true')
+local ie
+if sec then
+  ie = minetest.request_insecure_environment()
+  if ie == nil then
+    error("Mod security is on but " .. modname .. " is not whitelisted as a secure mod")
+  end
+end
+
+if sec then
+  string, io, debug, coroutine = ie.string, ie.io, ie.debug, ie.coroutine
+end
+
+local STP = dofile(minetest.get_modpath(modname) .. '/StackTracePlus/src/StackTracePlus.lua')
+-- Remove string/table dump length limits
+STP.max_tb_output_len = math.huge
+
+if sec then
+  ie.debug.traceback = STP.stacktrace
+  -- StackTracePlus caches the following modules, reset them to the original ones to
+  -- avoid leaking them
+  string, io, debug, coroutine = secenv.string, secenv.io, secenv.debug, secenv.coroutine
+  ie = nil
+end
+debug.traceback = STP.stacktrace
+
+minetest.log('action', "[" .. modname .. "] replaced debug.traceback")