WoodChopper

turtle.dig()
turtle.forward()
turtle.dig()
turtle.digUp()
y = 1
while true do
    turtle.up()
    turtle.dig()
    local success, block = turtle.inspectUp()
    if success == true then
        if block.name ~= "minecraft:spruce_log" then
            break
        end
    end
    turtle.digUp()
    y = y + 1
end

turtle.turnLeft()
turtle.forward()
turtle.turnRight()

for i = 1, y do
    turtle.digDown()
    turtle.down()
    turtle.dig()
end