tonini/alchemist.el — pull request #5 by pragdave (2014-10-25 21:31:25+00:00)
Title: add ability to run "mix test" on save, and support for red/green modeline

Adds two new customizations, both defaulting to t.

One automatically runs alchemist-mix-test when a buffer in alchemist-mode is saved.

The other colors the active modeline background to red or green depending on whether an alchemist command (such as mix test) failed or succeeded.