https://github.com/kototama/cljsbuild-mode.git
git clone 'git://github.com/kototama/cljsbuild-mode.git'
An Emacs minor mode for the ClojureScript ‘lein cljsbuild’ command that will automatically watch the compilation buffer, pop it when the compilation failed and (optionally) hide it when the compilation succeed.
Packages are available in the Marmalade and MELPA repositories. Install the mode with M-x package-install RET cljsbuild-mode.
M-x cljsbuild-start