%% ========================================================================================================== %% Syn - A global process registry. %% %% The MIT License (MIT) %% %% Copyright (c) 2016 Roberto Ostinelli and Neato Robotics, Inc. %% %% Permission is hereby granted, free of charge, to any person obtaining a copy %% of this software and associated documentation files (the "Software"), to deal %% in the Software without restriction, including without limitation the rights %% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell %% copies of the Software, and to permit persons to whom the Software is %% furnished to do so, subject to the following conditions: %% %% The above copyright notice and this permission notice shall be included in %% all copies or substantial portions of the Software. %% %% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR %% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, %% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE %% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER %% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, %% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN %% THE SOFTWARE. %% ========================================================================================================== -module(syn_utils). %% API -export([get_env_value/1, get_env_value/2]). %% =================================================================== %% API %% =================================================================== %% get an environment value -spec get_env_value(Key :: any()) -> {ok, any()} | undefined. get_env_value(Key) -> application:get_env(Key). -spec get_env_value(Key :: any(), Default :: any()) -> {ok, any()}. get_env_value(Key, Default) -> case application:get_env(Key) of undefined -> {ok, Default}; {ok, Val} -> {ok, Val} end.