Fix many, many warnings

worldedit/cuboid.lua

@@ -54,7 +54,6 @@ worldedit.cuboid_linear_expand = function(name, axis, direction, amount)
 	return true
 end
 
-
 -- Shifts the cuboid by '+-amount' in axis 'axis'
 worldedit.cuboid_shift = function(name, axis, amount)
 	local pos1 = worldedit.pos1[name]
@@ -113,7 +112,6 @@ worldedit.marker_update = function(name, marker)
 	end
 end
 
-
 -- Returns two vectors with the directions for volumetric expansion
 worldedit.get_expansion_directions = function(mark1, mark2)
 	if mark1 == nil or mark2 == nil then
@@ -146,7 +144,6 @@ worldedit.get_expansion_directions = function(mark1, mark2)
 	return dir1, dir2
 end
 
-
 -- Return the marker that is closest to the player
 worldedit.marker_get_closest_to_player = function(name)
 	local playerpos = minetest.get_player_by_name(name):get_pos()
@@ -160,7 +157,6 @@ worldedit.marker_get_closest_to_player = function(name)
 	end
 end
 
-
 -- Returns the closest marker to the specified axis and direction
 worldedit.marker_get_closest_to_axis = function(name, axis, direction)
 	local pos1 = vector.new()
@@ -199,7 +195,6 @@ worldedit.marker_get_closest_to_axis = function(name, axis, direction)
 	end
 end
 
-
 -- Translates up, down, left, right, front, back to their corresponding axes and
 -- directions according to faced direction
 worldedit.translate_direction = function(name, direction)

worldedit/init.lua

@@ -15,8 +15,6 @@ local ver = {major=1, minor=2}
 worldedit.version = ver
 worldedit.version_string = string.format("%d.%d", ver.major, ver.minor)
 
-local path = minetest.get_modpath(minetest.get_current_modname())
-
 local function load_module(path)
 	local file = io.open(path, "r")
 	if not file then return end
@@ -24,6 +22,8 @@ local function load_module(path)
 	return dofile(path)
 end
 
+local path = minetest.get_modpath(minetest.get_current_modname())
+
 dofile(path .. "/common.lua")
 load_module(path .. "/manipulations.lua")
 load_module(path .. "/primitives.lua")

worldedit/manipulations.lua

@@ -217,8 +217,6 @@ function worldedit.copy2(pos1, pos2, off, meta_backwards)
 	dst_manip:set_param2_data(dst_data)
 
 	mh.finish(dst_manip)
-	src_data = nil
-	dst_data = nil
 
 	-- Copy metadata
 	local get_meta = minetest.get_meta

worldedit/primitives.lua

@@ -299,7 +299,6 @@ function worldedit.spiral(pos, length, height, spacer, node_name)
 		for index = 1, segment_length do
 			-- Move along the direction of the segment
 			i = i + stride_axis * sign
-			local column = i
 			-- Add column
 			for y = 1, height do
 				data[column] = node_id
@@ -314,7 +313,6 @@ function worldedit.spiral(pos, length, height, spacer, node_name)
 	sign = -sign
 	for index = 1, segment_length do
 		i = i + stride_axis * sign
-		local column = i
 		-- Add column
 		for y = 1, height do
 			data[column] = node_id

worldedit_commands/init.lua

@@ -45,14 +45,14 @@ local function chatcommand_handler(cmd_name, name, param)
 	if def.nodes_needed then
 		local count = def.nodes_needed(name, unpack(parsed))
 		safe_region(name, count, function()
-			local success, msg = def.func(name, unpack(parsed))
+			local msg = def.func(name, unpack(parsed))
 			if msg then
 				minetest.chat_send_player(name, msg)
 			end
 		end)
 	else
 		-- no "safe region" check
-		local success, msg = def.func(name, unpack(parsed))
+		local msg = def.func(name, unpack(parsed))
 		if msg then
 			minetest.chat_send_player(name, msg)
 		end
@@ -243,7 +243,6 @@ worldedit.register_command("help", {
 			return false, "You are not allowed to use any WorldEdit commands."
 		end
 		if param == "" then
-			local msg = ""
 			local cmds = {}
 			for cmd, def in pairs(worldedit.registered_commands) do
 				if minetest.check_player_privs(name, def.privs) then

worldedit_gui/init.lua

@@ -4,11 +4,11 @@ worldedit = worldedit or {}
 Example:
 
     worldedit.register_gui_function("worldedit_gui_hollow_cylinder", {
-    	name = "Make Hollow Cylinder",
-    	privs = {worldedit=true},
-    	get_formspec = function(name) return "some formspec here" end,
-    	on_select = function(name) print(name .. " clicked the button!") end,
-    })
+		name = "Make Hollow Cylinder",
+		privs = {worldedit=true},
+		get_formspec = function(name) return "some formspec here" end,
+		on_select = function(name) print(name .. " clicked the button!") end,
+	})
 
 Use `nil` for the `options` parameter to unregister the function associated with the given identifier.
 
@@ -35,7 +35,7 @@ end
 Example:
 
     worldedit.register_gui_handler("worldedit_gui_hollow_cylinder", function(name, fields)
-    	print(minetest.serialize(fields))
+		print(minetest.serialize(fields))
     end)
 ]]
 
@@ -88,7 +88,7 @@ if minetest.global_exists("unified_inventory") then -- unified inventory install
 			worldedit.show_page(name, "worldedit_gui")
 			return true
 		elseif fields.worldedit_gui_exit then --return to original page
-			local player = minetest.get_player_by_name(name)
+			player = minetest.get_player_by_name(name)
 			if player then
 				unified_inventory.set_inventory_formspec(player, "craft")
 			end