rdfdiff
=======

Compute human readable diffs between RDF graphs.

Use Jena to check two RDF graphs to see if they are isomorphic, and if
not, show which statements are only in one graph and not in the other.
From the Jena docs:

     Two models are isomorphic when each statement in one can be
     matched with a statement in the other. Statements which are
     identical match.

     Special treatment is given to anonymous nodes. A binding is a one
     to one mapping which maps each anonymous node in this model to an
     anonymous node in model. Two statements s1 and s2 match under a
     binding if if s1.subject is anonymous and s2.subject is anonymous
     and the binding maps s1.subject to s2.subject.

     Two models are isomorphic if there is a binding that allows all
     the statements in one model to match a a statement in the other.

Building and using
------------------

The build uses sbt, the Scala Build Tool.  Once sbt is installed,
build the utility using:

    sbt assembly

resulting in target/scala-2.12/rdfdiff, an executable JAR file with
all necessary Jena libraries included.  Copy the file to somewhere in
your path, e.g. /usr/local/bin/ and make it executable.

--
Alex Tucker, 2018.