-- Buildat: client/extensions.lua
-- http://www.apache.org/licenses/LICENSE-2.0
-- Copyright 2014 Perttu Ahola <celeron55@gmail.com>
local log = buildat.Logger("__client/extensions")

function __buildat_load_extension(name)
	log:info("__buildat_load_extension(\""..name.."\")")
	local path = __buildat_extension_path(name).."/init.lua"
	local script, err = loadfile(path)
	if script == nil then
		log:error("Extension could not be opened: "..name.." at "..path..": "..err)
		return nil
	end
	local interface = script()
	if interface == nil then
		log:error("Extension returned nil: "..name.." at "..path)
		return nil
	end
	return interface
end

table.insert(package.loaders, function(name)
	log:info("package.loader called with name=\""..name.."\"")
	local m = string.match(name, '^buildat/extension/([a-zA-Z0-9_]+)$')
	if m then
		return function()
			return __buildat_load_extension(m)
		end
	end
	return nil
end)
-- vim: set noet ts=4 sw=4: