Swift is getting more and more a mature language and so the tools that are used in the ecosystem finally have support of it, so please use them. The acli gem is also no longer available for installation from rubygems.
a(wesome swift)cli provides convenient download over the command line of swift libraries listed in matteocrippa/awesome-swift and wolg/awesome-swift. to a folder on your machine. other 'readme.md' files can be added over .aclirc as 'repository'. the default folder is 'swift_lib' in the executed folder. this can be change in the .aclirc config file as well.
sudo gem install acli
acli help - lists all available commands
acli list - lists all available libraries mentioned
acli config - created .aclirc config file in current folder
this is not a replacement for cocoapods or somehow suitable for a production enviroment.