gistfile1.rb

# robocopy.rb

class Robocopy

    attr_accessor :source, :target, :excludeDirs, :includeFiles, :logPath
    
    def run()
        robocopy = "robocopy.exe " \
                   "\"#{@source}\" " \
                   "\"#{@target}\" " \
                   "/MIR " \
                   "/XD #{@excludeDirs} " \
                   "/IF #{@includeFiles} " \
                   "/LOG+:\"#{@logPath}\" " \
                   "/TEE"
            
        errorHandler = \
            lambda do |ok, res|
                       raise "Robocopy failed with exit " \
                             "code #{res.exitstatus}." \
                       if res.exitstatus > 8
                   end

        sh robocopy, &errorHandler 
    end
    
end

def robocopy(*args, &block)
    body = lambda { |*args|
        rc = Robocopy.new
        block.call(rc)
        rc.run
    }
    Rake::Task.define_task(*args, &body)
end
    
# rakefile.rb

desc "Deploys the application."
robocopy :deploy => :build do |rc|
    rc.source = "src/ProjectEuler.UI"
    rc.target = "D:/Websites/euler.mikeobrien.net/wwwroot"
    rc.excludeDirs = "obj"
    rc.includeFiles = "*.dll *.pdb *.config *.asax *.ascx *.ashx " \
                      "*.aspx *.master *.htm *.html *.txt *.css " \
                      "*.gif *.jpg *.jpeg *.png *.xml *.js"
    rc.logPath = "Robocopy.log"
end

Thanks for the robocopy task. I found it very helpful. But I do have one suggestion. Change line 8 from:
robocopy = "robocopy " \

to:

robocopy = "robocopy.exe " \

I just spent the last hour wondering why the sh robocopy command wasn't doing anything. Well, it turns out that since the robocopy.rb file is in the same folder as my Rakefile.rb it was interpreting the shell command as wanting to call the rb not the exe.

Nice catch, thx for pointing that out.