Imports github.com/fe0b6/csscut github.com/fe0b6/config github.com/tdewolff/minify github.com/tdewolff/minify/css github.com/syndtr/goleveldb/leveldb github.com/syndtr/goleveldb/leveldb/opt Standard library imports crypto/md5 encoding/json io/ioutil log net/http os os/exec regexp strings sync time