Add .luacheckrc

.luacheckrc

@@ -0,0 +1,25 @@
+std = "lua51+minetest"
+unused_args = false
+allow_defined_top = true
+max_line_length = 999
+
+stds.minetest = {
+	read_globals = {
+		"minetest",
+		"VoxelManip",
+		"VoxelArea",
+		"PseudoRandom",
+		"ItemStack",
+		"default",
+		table = {
+			fields = {
+				"copy",
+			},
+		},
+	}
+}
+
+read_globals = {
+	"pipeworks",
+}
+

utils/formspec.lua

@@ -1,4 +1,5 @@
 function generate(size)
+	local cfg
 	if size == "small" then
 		cfg = {
 			window_width = 8,