Check command-line arguments and if ok execute the given function. System/exit when the function is done, wrt hanging child-processes. The function should expect 2 params: the :options and :arguments parts of parsed options. Params: description - one line description of tool cli-options - vector of options according to tools.cli script - the function to execute args - arguments given on command-line, as a sequence ctx - context, a map. Could contain :script and :cwd

My version of fs/expand-home, using normalized in this namespace. Make sure we return a File object

Just replace / characters with system specific path separator. For use with (fs/expand-home) fs/normalized adds the current working dir (cwd), which gives a chicken/egg problem

Wrapper around cli/parse-opts that reads config file. Handles default parameters like this: 1. explicitly on cmdline 2. or else given in config file 3. or else use default value