Startup OS

shell.exit()
shell.run( "set shell.allow_disk_startup false" )
local version = "1.7"
function clr() return term.clear() end
function cp(x,y) return term.setCursorPos(x,y) end
function setText(col) return term.setTextColor(colors[col]) end
function setBack(col) return term.setBackgroundColor(colors[col]) end
function notnil(vari) if vari == nil then return false else return true end end
--[[

Startup file created by SpaceRanger4827
GUI Created by Just Does Games on Discord

Dev notes:
- [1357Coder] Added Security no Disk Booting at top of code
- [1357Coder] Updated Code + Added Auto Update
]]

if shell.getRunningProgram() ~= "startup" or shell.getRunningProgram() ~= "startup.lua" then
    -- This is not startup and means that this is the installer? nope
end

function printCentered(Text, Line)
    local x, y = term.getSize()
    x = x/2 - #Text/2
    term.setCursorPos(x, Line)
    if Color then
        col.set(Color, BkgColor)
    end
    term.write(Text)
    return true
end

function boot()
    os.pullEvent = os.pullEventRaw
    term.setBackgroundColor(colors.blue)
    term.clear()
    term.setCursorPos(14, 6)
    term.setTextColor(colors.red)
    write("Error » ")
    write("No Boot Image")
    sleep(1000)
    os.reboot()
end

if not fs.exists("/.os/.boot") then
    boot()
end
local boot = paintutils.loadImage("/.os/.boot") -- IF THIS FILE DOES NOT EXISTS, THE PROGRAM WILL CRASH WHEN CALLING THIS VARIABLE
local w,h = term.getSize()


 -- imported from .gui
title = "SpaceOS" -- imported by JDG (feel free to change this to the actual os name... was not given an os name, just assumed. lol SOS)

function main()
    setText("white")
    setBack("yellow")
    clr()
    cp(w-string.len(version),h) write(version)
    cp(1,h) write(title)
    for i=1, #boot do
        paintutils.drawImage(boot, w/3, 4)
        setBack("yellow")
        for ii=1, #boot-i do
            cp(2,#boot+4-ii)
            term.clearLine()
        end
        sleep(.1)
    end
    sleep(1)
    cp(w/3+1,2) setBack("lightGray") for i=1, 12 do write(" ") end
    for i=1, math.random(1,2) do
        cp(w/3+1,2)
        setBack("gray")
        for i=1, 12 do write(" ") sleep(.1) end
        cp(w/3+1,2)
        setBack("lightGray")
        for i=1, 12 do write(" ") sleep(.1) end
    end
    setBack("yellow") clr() sleep(.5)
end

local latestVersion = http.get("http://www.pastebin.com/raw/7TEJpdaK")
local lversion = latestVersion.readAll()
if lversion > version then
    term.setBackgroundColor( colors.red )
    term.clear()
    printCentered("Update SpaceOS", 7)
    term.setCursorPos(20, 8)
    sleep(3)
    term.clear()
    a = read()
    if a == "" then
        shell.run("pastebin run LqKwPb6N")
    else
        shell.run("/.os/.password")
    end
    else
        shell.run("/.os/.password")
end
if not ok then
    setBack("yellow") setText("white") clr()
  setBack("gray") cp(1,h/2-4) term.clearLine() cp(1,h/2-4)
  print("Yellow screen of Death") setText("yellow")
  setBack("white")
  cp(1,h/2-3)
  for i=1, w do
    write(" ")
  end
  setBack("lightGray")
  for i=1, 8 do
    cp(1,h/2-3+i)
    term.clearLine()
  end
  cp(1,h/2-2)
  print("A yellow screen error (also called a stop error) can occur if a problem causes your device to shut down or restart unexpectedly. Your device ran into a problem and needs to restart.")
  print("")
  write("Error Code: ")
  printError(err)
  term.setCursorBlink(false)
  sleep(1)
  print("")
  print("Press any key to reboot...")
  os.pullEvent("key")
else
    print("Exited without Errors")
end
os.reboot()