Version Updater API

------=WARNING=------
--Just a quick warning, this MAY NOT WORK IN ITS CURRENT STATE. I am unable to test it at this exact moment. Thanks!
------=WARNING=------
--Program Updater API Thingy! Yay!
--This script basically just updates any pastebin program as an API :)
--It could probably be MUCH better. So, yeah. Fun. ANYWAYS...
-------IMPORTANT-------
--Put this little snippet of code in your program that needs auto-updating!
--version = *version* --(only one decimal point may be used. Commas are NOT to be used!)
--function returnVersionAPI()
--  return version
--end
-------IMPORTANT-------
-------NOTE-------
--The functions are written in cronological order of which you should run them!
-------NOTE-------
-------NOTE2-------
--Your Version List MUST have this bit of code for a sort of API!
--=--function getVersion(programName)
  --=--return programName
--=--end
--This basically lets my API intrface your version list. You send my API (for example) "remoteVersion(exampleProgramName)" then your
--version list sends back the version the variable has. So say exampleProgramName's version was 1. Your version list would send back 1,
--as a number. IT MUST BE A NUMBER, NOT A STRING!
-------NOTE2-------
function findVersionList(versionListName)
if fs.exists(versionListName) then
  shell.run("delete ".. versionListName)
end
---------------
function grabTheVersionList(pastebinCode,versionListName)
  shell.run("pastebin get ".. pastebinCode .." ".. versionListName)
end
---------------
function remoteVerison(versionListName,programName)
  os.loadAPI(versionListName)
  newVersion = versionlist.getVersion(programName)
  if newVersion not nul then
    return newVersion
    shell.run("delete ".. versionListName)
  else
    return false
  end
end
---------------
function findTheProgramVersion(programName)
  if fs.exists(programName) then
    os.loadAPI(programName)
    dledVersion = programName.returnVersionAPI()
    if dledVersion not nul then
      return dledVersion
    else
      return false
    end
  end
end
---------------
function update(dledVersion,newVersion,programName) --This actually updates.
  if dledVersion < newVersion then
    shell.run("delete ".. programName)
    shell.run("pastebin get suVzDDJG".. programName)
    print("Updated from version ".. dledVerison .." to ".. newVerison .."!")
    return "updated"
  elseif dledVersion == newVersion then
    print("You are up to date!")
    return "up to date"
  elseif dledVersion > newVersion then
    print("Somebody forgot to update their version list!")
    return "beta version?"
  end
end
-------EXAMPLE-------
--This example actually updates the updater... makes TOTAL sense, right? :P
--version = 1
os.loadAPI("updater")
updater.findVersionList("versionlist")
updater.grabTheVersionList("HmZ3GzVv","versionList")
remoteVersion = updater.remoteVersion(AutoUpdater)
dledVersion = updater.findTheProgramVersion("updater")
updater.update(dledVersion,remoteVersion,updater)
-------EXAMPLE-------