I'd like to introduce stch.ns.  What is stch.ns?  In short, it's a 
namespace utility for reloading modified files that's designed to be used 
in a REPL.  Now you may be thinking we already have tools.namespace, so 
what's the big deal.  Here are some differences:

1. Aliased namespaces are preserved upon reloading.
2. If you 'use'd a namespace previously, stch.ns attempts to reload the 
namespaces using 'use' instead of 'require.'
3. Only the project's src directory is checked by default.  This can be 
modified, of course.
4. Any exceptions that are thrown while trying to reload a namespace are 
return in the result map under the 'exceptions' key.  Each key/value pair 
represents the namespace and the corresponding exception message.  This 
turns out to be really convenient, alleviates a call to clojure.repl/pst, 
and also allows for multiple exceptions to be caught in namespaces that 
don't depend on one another.

All the features that make tools.namespace great, like generating a 
dependency graph are still there.  As are some of the issues inherent in 
reloading namespaces (e.g., records and protocol fns).

Project page can be found here: https://github.com/stch-library/ns

To use, add the following as a dependency to your lein user profile in 
~/.lein/profiles.clj:

[stch-library/ns "0.3.0"]


Enjoy.

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