[LUA] ComputerCraft Backup/Recovery Tool

-- SmilerRyan's Backup And Recovery Tool:
-- Moves files to disk so they can be recovered later.
-- NOTE: Recovery will OVERWRITE all files on the machine.
-- USAGE: Insert floppy with disk in device(s) to copy from/to.
-- DOWNLOAD (ON EMPTY FLOPPY): pastebin get cbTdp8B0 /disk/startup

shell.run("clear")
local DT = "unknown"
term.setCursorPos(2,2)
if fs.isDir("/disk/r") then DT = "recovery" else DT = "backup" end
if term.isColor() then term.setTextColor(colors.yellow) end
print("Backup/Recovery Tool by SmilerRyan\n")
print(" This disk will " .. DT .. " your files.")
print(" Warning: Every file/directory will be moved.\n")
print(" To cancel the process, press T.")
print(" Press any key to start...")

local ignore={["disk"]=true,["rom"]=true}
local event, key = os.pullEvent( "key" )
local l = "[Backup Disk] "
print("")

if key == keys.t then
    term.clear()
    term.setCursorPos(2,2)
    if term.isColor() then  term.setTextColor(colors.red)  end
    write("Backup/Recovery Tool by SmilerRyan\n The " .. DT .. " task was cancelled.\n The drive was not ejected.\n\n")
    if term.isColor() then term.setTextColor(colors.white) end
    return
end

print(" " .. DT .. " started")
if fs.isDir("/disk/r") then
for _, filename in ipairs(fs.list("/disk/r")) do if not ignore[filename] then fs.move("/disk/r/"..filename, "/"..filename) end end
fs.delete("/disk/r")
l = l .. "empty"
else
fs.makeDir("/disk/r");
for _, filename in ipairs(fs.list("")) do if not ignore[filename] then fs.move(filename, "/disk/r/"..filename) end end
l = l .."full"
end

local sides = {"top","bottom","left","right","front","back"}
for i, side in pairs(sides) do
    disk.setLabel(side, l)
    disk.eject(side)
end

sleep(2)
write(" " .. DT .. " complete!\nRebooting...")
os.reboot()