1 --[[--

2 status_code = -- status code returned by the executed lua file (a string)

3 execute.file_path{

4 file_path = file_path, -- path to a lua source or byte-code file

5 id = id, -- id to be returned by param.get_id(...) during execution

6 params = params -- parameters to be returned by param.get(...) during execution

7 }

8

9 This function loads and executes a lua file specified by a given path. If an "id" or "params" are provided, the param.get_id(...) and/or param.get(...) functions will return the provided values during execution. The lua routine must return true, false, nil or a string. In case of true or nil, this function returns the string "ok", in case of false, this function returns "error", otherwise the string returned by the lua routine will be returned by this function as well.

10

11 --]]--

12

13 function execute.file_path(args)

14 local file_path = args.file_path

15 local id = args.id

16 local params = args.params

17 local func, load_errmsg = loadfile(file_path)

18 if not func then

19 error('Could not load file "' .. file_path .. '": ' .. load_errmsg)

20 end

21 if id or params then

22 param.exchange(id, params)

23 end

24 local result = func()

25 if result == nil or result == true then

26 result = 'ok'

27 elseif result == false then

28 result = 'error'

29 elseif type(result) ~= "string" then

30 error("Unexpected type of result: " .. type(result))

31 end

32 if id or params then

33 param.restore()

34 end

35 return result

36 end