tr_installer

local files = { };

if fs.exists("tr") then
  table.insert(files, "tr");
end

if fs.exists("lib_turtle_0.2.4") then
  table.insert(files, "lib_turtle_0.2.4");
end

if fs.exists("lib_log") then
  table.insert(files, "lib_log");
end

if 0 < #files then
  for _, val in ipairs(files) do
    print(val);
  end
  print(tostring(#files) .. " file(s) exists.");
  print("overwrite? (y/n)");
  local ch = read();
  if ch ~= "y" then
    print("Installation was canceled.");
    return;
  end
  for _, val in ipairs(files) do
    fs.delete(val);
  end
end

print("Installing...");

shell.run("pastebin get vMFb2Ske lib_log");
shell.run("pastebin get p9r13ik2 lib_turtle_0.2.4");
shell.run("pastebin get nCNwCJp0 tr");

print("Installation was completed.");