Rake on windows - copy directory to another server

I want to use rake to deploy a .net website to a windows server... Bit new at this and getting stuck with the very simple stuff...

How would I copy a directory from a local folder to a different windows server?

At the moment I have:

task :default => :CWS_Web_application

desc 'Depoly CWS Web application to preview environment'
task :CWS_Web_application do
    sh "echo Depoly CWS Web application to preview environment"
mv('MyDirectory', '//servername/c$/foldername', :verbose => true)
end

This obviously doesn开发者_StackOverflow中文版't work - I believe the problem being the server path: '//servername/c$/foldername'

Can anyone point me in the right direction?

This being ruby mixed with windows there's going to be multiple ways to do this, but here's what I've done by piping stuff to cmd.exe:

sh "del /q /f /s \\\\servername\\c$\\foldername\\subfoldername\\*.*"
sh "XCOPY .\\source_directory \\\\servername\\c$\\foldername\\subfoldername /E /Exclude:xcopy_excludes.txt"
sh "COPY .\\config\\website\\servername\\#{BUILD_CONFIGURATION}\\web.config \\\\servername\\c$\\foldername\\subfoldername"

You can also do stuff like:

sh "net use O: \\\\servername\\c$\\foldername\\subfoldername"
sh "copy *.* O:"
sh "net use O: /delete"

if that's preferred which potentially lets you put in username and passwords as well if required. The account running the rake script will obviously need appropriate permissions on the domain / directories etc. etc.

There's probably other ways of getting around escaping the \'s but I just went with the first thing that worked for me.