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--[==========================================================================[
luac.lua: lua compilation module for VLC (duplicates luac)
--[==========================================================================[
Copyright (C) 2010 Antoine Cellerier
Authors: Antoine Cellerier <dionoea at videolan dot org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
--]==========================================================================]
usage =
[[
To compile a lua script to bytecode (luac) run:
vlc -I luaintf --lua-intf luac --lua-config 'luac={input="file.lua",output="file.luac"}'
Output will be similar to that of the luac command line tool provided with lua with the following arguments:
luac -o file.luac file.lua
]]
function compile()
vlc.msg.info("About to compile lua file")
vlc.msg.info(" Input is '"..tostring(config.input).."'")
vlc.msg.info(" Output is '"..tostring(config.output).."'")
if not config.input or not config.output then
vlc.msg.err("Input and output config options must be set")
return false
end
local bytecode, msg = loadfile(config.input)
if not bytecode then
vlc.msg.err("Error while loading file '"..config.input.."': "..msg)
return false
end
local output, msg = io.open(config.output, "wb")
if not output then
vlc.msg.err("Error while opening file '"..config.output.."' for output: "..msg)
return false
else
output:write(string.dump(bytecode))
return true
end
end
if not compile() then
for line in string.gmatch(usage,"([^\n]+)\n*") do
vlc.msg.err(line)
end
end
vlc.misc.quit()
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