Uduntu Installer

local gpu = require("component").gpu
local internet = require("component").internet
local fs = require("filesystem")

--Проверка компонентов--
do
    NeedCom = {}
  NowW,NowH = gpu.maxResolution()

    if  NowW < 80 then
        table.insert(NeedCom,"Your monitor is 1 tier. Upgrade it to 2 tier or upper...")
    end

    if fs.get("bin/edit.lua") == nil or fs.get("bin/edit.lua").isReadOnly() then
        table.insert(NeedCom,"You don't install OpenOS. Please intall it...")
    end

    if NeedCom ~= nil then
        local i = 1
        for i = 1,#NeedCom do
            print(NeedCom[i])
        end
    else
        print("O'key! All components is ready!\nStart download...")
    end
end

--Скачивание необходимого--
do
    DownloadList =
    {
        GPAPI = "Good-Pudge/OpenComputers-OS/master/Uduntu/GPAPI.lua",
    }


local function request(url)
  local success, response = pcall(component.internet.request, url)
  if success then
    local responseData = ""
    while true do
      local data, responseChunk = response.read()
      if data then
        responseData = responseData .. data
      else
        if responseChunk then
          return false, responseChunk
        else
          return responseData
        end
      end
    end
  else
    return false, reason
  end
end

--БЕЗОПАСНАЯ ЗАГРУЗОЧКА
local function getFromGitHubSafely(url, path)
  local success, reason = request(url)
  if success then
    fs.makeDirectory(fs.path(path) or "")
    fs.remove(path)
    local file = io.open(path, "w")
    file:write(success)
    file:close()
    return success
  else
    io.stderr:write("Can't download \"" .. url .. "\"!\n")
    return -1
  end
end

    local GitHubUserUrl = "https://raw.githubusercontent.com/"

  for k,v in pairs(DownloadList) do
    print("Downloading \"" .. fs.name(DownloadList[k]) .. "\"")
    getFromGitHubSafely(GitHubUserUrl..DownloadList[v], DownloadList[k])
  end
end