We have a good basis with
versioning. 

99% of the time, workers are the
ones accessing the configuration.
They are at the top level.

It happens that they do access
configuration through
the workers service name space.
In fact through a single fn ... 

Passing a version number when
pulling out a resource is feasible.
This could override the default
(the current config established at
startup).

I want to make it clear, we never
intended to do this BUT it happens
that we need a way to compare
configs. It's not implemented yet.
It maybe more or less an
 unconscious design decision that
makes it easy to implement.

Versioning is mainly a way for us to 
revert back to previous configs but it's
also a way to fake an immutable
config state. It's an operational
requirement more than a code
or design issue.

Luc P.

> On Fri, Dec 27, 2013 at 10:35 AM, Softaddicts
> <lprefonta...@softaddicts.ca>wrote:
> 
> > Passing this stuff around using one of the two methods you have shown
> > would have been cumbersome and unmaintainable. Most of the time
> > our configuration information comes from top level fns so the lower
> > layers remain even more insensitive to how this info is pulled in.
> >
> 
> Agreed.  Now imagine that one day you realize that you have a problem that
> can't be solved with one single configuration for the entire lifecycle of
> the program, but somehow, you have to process and compare results from two
> configurations simultaneously.  What would you do?  How painful would that
> change be?  Is there something we can do to make this more feasible in
> Clojure?
> 
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