gravitystorm/openstreetmap-carto — pull request #903 by pnorman (2014-08-23 05:43:43+00:00)
Title: Travis CI

Travis needs to be enabled on this repo for this to work, but this will check that the .mml file is valid JSON and that carto compiles it without errors. See pnorman/openstreetmap-carto#2 for an example of how it looks.