ó Á£ô_c@sgdZddlZddlmZddlmZddlmZeje ƒZ d„Z d„Z dS(sPlugin utilities.i˙˙˙˙N(tutil(tos(tSTANDARD_BINARY_DIRScCsbtjj|ƒ}g}xC|r]|j|ƒtjj|ƒ\}}||dkrPqqW|S(s‡Retrieves all possible path prefixes of a path, in descending order of length. For instance, (linux) /a/b/c returns ['/a/b/c', '/a/b', '/a', '/'] (windows) C:\a\b\c returns ['C:\a\b\c', 'C:\a\b', 'C:\a', 'C:'] :param str path: the path to break into prefixes :returns: all possible path prefixes of given path in descending order :rtype: `list` of `str` i˙˙˙˙(Rtpathtnormpathtappendtsplit(Rtprefixtprefixest_((s8/usr/lib/python2.7/site-packages/certbot/plugins/util.pyt get_prefixes s   cCsÑtjd}g}x;tD]3}||kr|tj|7}|j|ƒqqWt|ƒrŒtjd|tjj|ƒƒ|tjds