util/pluginloader.lua

-- Prosody IM

-- Copyright (C) 2008-2010 Matthew Wild

-- Copyright (C) 2008-2010 Waqas Hussain

-- 

-- This project is MIT/X11 licensed. Please see the

-- COPYING file in the source package for more information.

--

local plugin_dir = CFG_PLUGINDIR or "./plugins/";

local io_open, os_time = io.open, os.time;

local loadstring, pairs = loadstring, pairs;

module "pluginloader"

local function load_file(name)

	local file, err = io_open(plugin_dir..name);

	if not file then return file, err; end

	local content = file:read("*a");

	file:close();

	return content, name;

end

function load_resource(plugin, resource, loader)

	local path, name = plugin:match("([^/]*)/?(.*)");

	if name == "" then

		if not resource then

			resource = "mod_"..plugin..".lua";

		end

		loader = loader or load_file;

		local content, err = loader(plugin.."/"..resource);

		if not content then content, err = loader(resource); end

		-- TODO add support for packed plugins

		return content, err;

	else

		if not resource then

			resource = "mod_"..name..".lua";

		end

		loader = loader or load_file;

		local content, err = loader(plugin.."/"..resource);

		if not content then content, err = loader(path.."/"..resource); end

		-- TODO add support for packed plugins

		return content, err;

	end

end

function load_code(plugin, resource)

	local content, err = load_resource(plugin, resource);

	if not content then return content, err; end

	return loadstring(content, "@"..err);

end

return _M;