ó šH—Vc@s7dZddlZddlZd„Zdd„ZdS(s6Utility to use the Uglify JS Compiler CLI from Python.i˙˙˙˙NcCstjddgƒdS(s2 Returns whether the uglify-js tool is available. twhichtuglifyjsN(t subprocesst check_output(((s../tools/uglify_js.pytcheck_availablescCs‚dg}|j|ƒ|jddgƒ|r<||7}ntjddj|ƒƒytj|ƒSWntjk r}dSXdS(s Prepares command-line call to uglify-js compiler. Args: source_paths: Source paths to build, in order. flags: A list of additional flags to pass on to uglify-js. Returns: The compiled source, as a string, or None if compilation failed. Rs-cs-ms(Compiling with the following command: %st N(textendtloggingtinfotjoinRRtCalledProcessError(t source_pathstflagstargs((s../tools/uglify_js.pytcompile s   (t__doc__RRRtNoneR(((s../tools/uglify_js.pyts