cc-installer.lua

--[[
  CCInstaller
  by znepb
  Version 1.0

  Example configuration: https://gist.github.com/znepb/5f5be3a68faa8b8758ddaa141e253d8c
]]

local repo = "" -- The GitHub repo for your program (user/repo/branch)
local installStart = "" -- Where the installation will start at
local applicationName = "" -- The name of your application
local promptPath = false -- Prompt the user to set a path to install to
local defaultPath = "" -- The path if PromptPath is disabled
local colorSet = { -- Just the colors
  backgroundPrimary = colors.white,
  backgroundSecondary = colors.lightGray,
  text = colors.gray
}

local installFiles = { -- A list of files and folders to be downloaded and installed.
  -- Put some files here...
}

--[[ Main Installer Program ]]--

local base = ""
local page = "path"
local w, h = term.getSize()
local current = term.current()
local installStatus = window.create(term.current(), 2, 4, w - 1, h - 4, false)

if not promptPath then
  base = defaultPath
end

print("Initalizing installer...")
local function get(url)
  local file = http.get(url)
  local content = file.readAll()
  file.close()
  return content
end

local function save(content, path)
  local file = fs.open(fs.combine(base, path), "w")
  file.write(content)
  file.close()
end

local function getBaseInstallPath()
  local url = "https://raw.githubusercontent.com/" .. repo .. "/" .. installStart .. "/"
  if not installStart then
    url = "https://raw.githubusercontent.com/" .. repo .. "/"
  end

  return url
end

local function startDownloading()
  local function downloadTable(files, path)
    for i, v in pairs(files) do
      if type(v) == "table" then
        downloadTable(v, fs.combine(path, i))
      elseif type(v) == "string" then
        term.redirect(installStatus)
        print("Downloading: " .. fs.combine(path, v))
        save(get(getBaseInstallPath() .. fs.combine(path, v)), fs.combine(path, v))
      end
    end
  end

  downloadTable(installFiles, "")

  print("Complete, press any key to exit")
  term.redirect(current)
  os.pullEvent("key")
  term.setBackgroundColor(colors.black)
  term.clear()
  term.setCursorPos(1, 1)
  sleep(0.1)
end

sleep(0.1)

local function draw()
  term.setBackgroundColor(colorSet.backgroundPrimary)
  term.clear()
  term.setTextColor(colorSet.text)
  if page == "path" then
    if promptPath then
      term.setCursorPos(2, 2)
      term.write("Install Path")
      term.setCursorPos(2, 6)
      term.write("Press Enter to continue")
      paintutils.drawLine(2, 4, w - 1, 4, colorSet.backgroundSecondary)
      term.setCursorPos(2, 4)
      base = read()
    else
      term.setCursorPos(2, 2)
      term.write("Install " .. applicationName)
      term.setCursorPos(2, 4)
      term.write("Press Enter to start installation")
      while true do
        local _, key = os.pullEvent("key")
        if key == keys.enter then
          break
        end
      end
      base = ""
    end

    page = "install"
    draw()
  elseif page == "install" then
    term.setCursorPos(2, 2)
    term.write("Installing...")
    installStatus.setVisible(true)
    startDownloading()
  end
end

draw()