sstephenson/sprockets — pull request #612 by dgraham (2014-07-11 01:09:34+00:00)
Title: Pass source file name to coffee compiler.

@josh Working from your `coffee-script-sourcemap` branch, this passes the original file name along to the coffee compiler so it will add it to the the source map’s `sources` array. Then we can map the compiled js back to its original coffee file.