I’m using Subversion for my project, and I use TortoiseSVN. When I created my project in Eclipse, I wanted to exclude .svn folders from building. First I tried to manually exclude .svn folders from Eclipse project/Build Path/Exclude, but it did’t work.
The solution is to install Subclipse plugin, to add Subversion support to Eclipse. After install, you’ll never care about excluding .svn folders, and you’ll be also be able to correctly manage subversioned files from into Eclipse.
If you install this plugin it before creating projects, you’ll be automatically connected to remote folder (if you was previously attached to a remote project); instead if you install the plugin later, you must manually attach to subversion, selecting from project context menu: Team/Share project/SVN, then it automatically detects the repository url.