lib/fabric/account.rb in fabric-0.4.1 vs lib/fabric/account.rb in fabric-0.4.2

@@ -21,12 +21,10 @@
     self.server.execute_command("echo '#{self.user.authorized_keys_file}' | sudo tee #{self.user.authorized_keys_file_path}")
     self.set_ssh_key_permissions
   end
   
   def add_to_groups
-    self.user.groups.each do |group|
-      self.server.execute_command("sudo /usr/sbin/usermod -G#{group.name} #{self.user.name}")
-    end
+    self.server.execute_command("sudo /usr/sbin/usermod -a -G #{self.user.groups.collect(&:name).join(',')} #{self.user.name}")
   end
   
   protected
   def set_ssh_key_permissions
     self.server.execute_command("sudo chown #{self.user.name} #{self.user.authorized_keys_file_path}")
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