Refactor of commands

utils/dump_env.lua

@@ -0,0 +1,32 @@
+-- A small debugging tool that writes the contents of _ENV to a file when the game loads.
+-- Useful for ensuring you get the same information when loading
+-- the reference and desync levels in desync reports.
+-- dependencies
+local table = require 'utils.table'
+local Event = require 'utils.event'
+
+-- localized functions
+local inspect = table.inspect
+
+-- local constants
+local filename = 'env_dump.lua'
+
+-- Removes metatables and the package table
+local filter = function(item, path)
+    if path[#path] ~= inspect.METATABLE and item ~= 'package' then
+        return item
+    end
+end
+
+local function player_joined(event)
+    local dump_string = inspect(_ENV, {process = filter})
+    if dump_string then
+        local s = string.format('tick on join: %s\n%s', event.tick, dump_string)
+        game.write_file(filename, s)
+        game.print('_ENV dumped into ' .. filename)
+    else
+        game.print('_ENV not dumped, dump_string was nil')
+    end
+end
+
+Event.add(defines.events.on_player_joined_game, player_joined)