rebar/rebar — pull request #113 by zinid (2013-07-01 10:15:25+00:00)
Title: Speed up the compilation process

* Do not parse source files twice while checking for relationship.
* Keep files relationships in a graph.
* The option 'keep_build_info' is introduced. When set to 'true' the graph will be kept in ebin/.rebar.build.info and will be used by further compiler calls. The default is 'false'.