luaonly.lua

-- Command line switch to load a Lua script and exit.
module('_m.common.luaonly', package.seeall)


-- ## Commands

-- Run a script and exit Textadept.<br>
-- Parameter:<br>
-- _file_: Script to run.
local function luaonly(file)
  if not file then
    print('No script file given.')
    os.exit()
  end
  -- Change argument positions for external script.
  for i = 0, #arg do arg[i - 2] = arg[i] end
  arg[#arg], arg[#arg - 1] = nil
  -- Remove some entries from global environment, otherwise Textadept's
  -- state is available.
  _G.gui, _G.new_buffer = nil
  f, err = loadfile(file)
  if err then
    print(err)
  else
    pcall(f)
  end
  _G.quit()
end

-- Register argument.
args.register('-l', '--luaonly', 1,
  function()
    luaonly(arg[2])
  end,
  'Load lua script and exit')