mtinfo/recipes.lua

function mtinfo.export_recipes()
	local data = {}

	for name in pairs(minetest.registered_items) do
		local recipes = minetest.get_all_craft_recipes(name)
		local export_recipes = {}

		if recipes then
			for _, recipe in ipairs(recipes) do
				local export_recipe = true
				for _, item in ipairs(recipe.items) do
					local is_group = item and string.sub(item, 6) == "group:"

					if not is_group then
						-- check not_in_creative_inventory group of item def
						local itemdef = minetest.registered_items[item]
						if itemdef and itemdef.groups and itemdef.groups.not_in_creative_inventory then
							export_recipe = false
						end
					end
				end

				if export_recipe then
					-- filter out moreblocks/stairs recipes (if the ingredient is not exported)
					table.insert(export_recipes, recipe)
				end

				data[name] = export_recipes
			end
		end
	end

	if minetest.get_modpath("technic") then
		for recipe_type, entry in pairs(technic.recipes) do
			if entry.recipes then
				for _, recipe in pairs(entry.recipes) do
					local result_stack = ItemStack(recipe.output)
					local outputname = result_stack:get_name()

					local existing_recipes = data[outputname]
					if not existing_recipes then
						existing_recipes = {}
					end

					table.insert(existing_recipes, {
						type = recipe_type,
						method = recipe_type,
						items = recipe.input,
						output = recipe.output,
						time = recipe.time
					})

					data[outputname] = existing_recipes
				end
			end
		end
	end


	mtinfo.export_json(mtinfo.basepath.."/data/recipes.js", data, "mtinfo.recipes")

end