Fix some luacheck errors

the others are because rotate.lua isn't finished
Unfortunately I don't have the time to fix it now, because it will require a lot of time

.luacheckrc

@@ -21,7 +21,7 @@ globals = {
 	"worldedit",
 	"worldeditadditions",
 	"worldeditadditions_commands",
-	"worldeditadditions_core"
+	"worldeditadditions_core",
 }
 -- Read-only globals
 read_globals = {
@@ -35,6 +35,7 @@ read_globals = {
 	"dofile",
 	"PerlinNoise",
 	"Settings",
-	"VoxelArea"
+	"VoxelArea",
+	"pova" -- optional mod support
 }
 std = "max"

promise.lua

@@ -145,7 +145,7 @@ end
 
 -- TEST example code, TODO test this
 
-function test()
+local function test()
 	return Promise.new(function(resolve, reject)
 		-- TODO do something asyncy here
 		print("DEBUG running test function")

worldeditadditions_commands/commands/set.lua

@@ -22,7 +22,7 @@ core.register_command("set+", {
 		local parts = core.split_shell(params_text)
 				
 		local mode = "param"
-		local value = nil
+		local value -- defaults to nil
 		
 		local possible_modes = { "param", "p", "param2", "p2", "light", "l" }
 		

worldeditadditions_core/utils/orientation.lua

@@ -17,7 +17,7 @@ local wallmounted_cycles = {
 }
 
 -- We have standardised on radians for other rotation operations, so it wouldn't make sense for the API-facing functions in this file to use a number of times or degrees, as this would be inconsistent
-function convert_normalise_rad(rad)
+local function convert_normalise_rad(rad)
 	local deg = math.deg(rad)
 	local times = worldeditadditions_core.round(deg / 90)
 	return math.floor(times) -- ensure it's an integer and not e.g. a float 1.0
@@ -35,16 +35,16 @@ end
 -- @param	axis	string	The name of the axis to rotate around. Valid values: `x`, `y`, `z`
 -- @param	amount	The number of radians to rotate around the given `axis`. Only right angles are supported (i.e. 90° increments). Any value that isn't a 90° increment will be **rounded**!
 -- @returns	number	A new param2 value that is rotated the given number of degrees around the given `axis`
-function facedir(param2, axis, amount_rad)
+local function facedir(param2, axis, amount_rad)
 	local amount = convert_normalise_rad(amount_rad)
 	print("DEBUG:core/orientation:facedir AMOUNT rad "..tostring(amount_rad).." norm "..tostring(amount))
-	local facedir = param2 % 32
+	local facedir_this = param2 % 32
 	for _, cycle in ipairs(facedir_cycles[axis]) do
 		-- Find the current facedir
 		-- Minetest adds table.indexof, but I refuse to use it because it returns -1 rather than nil
 		for i, fd in ipairs(cycle) do
-			if fd == facedir then
-				return param2 - facedir + cycle[1 + (i - 1 + amount) % 4] -- If only Lua didn't use 1 indexing...
+			if fd == facedir_this then
+				return param2 - facedir_this + cycle[1 + (i - 1 + amount) % 4] -- If only Lua didn't use 1 indexing...
 			end
 		end
 	end
@@ -56,14 +56,14 @@ end
 -- @param	axis	string	The name of the axis to rotate around. Valid values: `x`, `y`, `z`
 -- @param	amount	The number of radians to rotate around the given `axis`. Only right angles are supported (i.e. 90° increments). Any value that isn't a 90° increment will be **rounded**!
 -- @returns	number	A new param2 value that is rotated the given number of degrees around the given `axis`
-function wallmounted(param2, axis, amount_rad)
+local function wallmounted(param2, axis, amount_rad)
 	local amount = convert_normalise_rad(amount_rad)
 	print("DEBUG:core/orientation:wallmounted AMOUNT rad " .. tostring(amount_rad) .. " norm " .. tostring(amount))
 
-	local wallmounted = param2 % 8
+	local wallmounted_this = param2 % 8
 	for i, wm in ipairs(wallmounted_cycles[axis]) do
-		if wm == wallmounted then
-			return param2 - wallmounted + wallmounted_cycles[axis][1 + (i - 1 + amount) % 4]
+		if wm == wallmounted_this then
+			return param2 - wallmounted_this + wallmounted_cycles[axis][1 + (i - 1 + amount) % 4]
 		end
 	end
 	return param2

worldeditadditions_core/utils/parse/axes_rotation.lua

@@ -15,7 +15,7 @@ local function calc_rotation_text(rotation)
 	end
 end
 
-function rot_axis_left(axis)
+local function rot_axis_left(axis)
 	if axis.x == 1 or axis.x == -1 then
 		axis.x, axis.z = 0, axis.x
 	elseif axis.z == 1 or axis.z == -1 then

worldeditadditions_core/utils/table/table_find.lua

@@ -12,7 +12,7 @@
 -- 2. `i` (number): The index in the table that the value can be found at
 -- 3. `tbl` (table): The original table.
 -- @return any|nil The first element in the table that satisfies the predicate, or nil if no such element is found.
-function find(tbl, func)
+local function find(tbl, func)
 	for i,value in ipairs(tbl) do
 		if func(value, i, tbl) then
 			return value

worldeditadditions_core/utils/table/table_tostring.lua

@@ -3,7 +3,7 @@
 
 --- Returns the key value pairs in a table as a single string
 -- @param	tbl	table	input table
--- @param	sep	string	key value seperator
+-- @param	sep	string	key value separator
 -- @param	new_line	string	key value pair delimiter
 -- @param	max_depth	number	max recursion depth (optional)
 -- @return	string	concatenated table pairs
@@ -17,7 +17,7 @@ local function tostring(tbl, sep, new_line, max_depth)
 	for key,value in pairs(tbl) do
 		if type(value) == "table" and max_depth.depth < max_depth.max then
 			table.insert(ret,tostring(key) .. sep ..
-			"{" .. table_tostring(value,sep,new_line,{max_depth.depth+1,max_depth.max}) .. "}")
+			"{" .. tostring(value,sep,new_line,{max_depth.depth+1,max_depth.max}) .. "}")
 		else
 			table.insert(ret,tostring(key) .. sep .. tostring(value))
 		end