xref: /freebsd/stand/lua/loader.lua (revision 3982006ed5587cfd83cc1955186e0aa4b92b3fcd)
1--
2-- Copyright (c) 2015 Pedro Souza <pedrosouza@freebsd.org>
3-- Copyright (c) 2018 Kyle Evans <kevans@FreeBSD.org>
4-- All rights reserved.
5--
6-- Redistribution and use in source and binary forms, with or without
7-- modification, are permitted provided that the following conditions
8-- are met:
9-- 1. Redistributions of source code must retain the above copyright
10--    notice, this list of conditions and the following disclaimer.
11-- 2. Redistributions in binary form must reproduce the above copyright
12--    notice, this list of conditions and the following disclaimer in the
13--    documentation and/or other materials provided with the distribution.
14--
15-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18-- ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25-- SUCH DAMAGE.
26--
27-- $FreeBSD$
28--
29
30local config = require("config")
31local menu = require("menu")
32local password = require("password")
33local local_module
34
35local result, errstr, errnoval = lfs.attributes("/boot/lua/local.lua")
36-- Effectively discard any errors; we'll just act if it succeeds.
37if result ~= nil then
38	local_module = require("local")
39end
40
41-- Declares a global function cli_execute that attempts to dispatch the
42-- arguments passed as a lua function. This gives lua a chance to intercept
43-- builtin CLI commands like "boot"
44function cli_execute(...)
45	local argv = {...}
46	-- Just in case...
47	if #argv == 0 then
48		loader.command(...)
49		return
50	end
51
52	local cmd_name = argv[1]
53	local cmd = _G[cmd_name]
54	if cmd ~= nil and type(cmd) == "function" then
55		-- Pass argv wholesale into cmd. We could omit argv[0] since the
56		-- traditional reasons for including it don't necessarily apply,
57		-- it may not be totally redundant if we want to have one global
58		-- handling multiple commands
59		cmd(...)
60	else
61		loader.command(...)
62	end
63
64end
65
66config.load()
67password.check()
68menu.run()
69