[opensuse-buildservice] Package download for local build from local source (e.g. DVD)

Hi, as I have a very slow connection at the moment, and wanted to try the local build introduced recently, I have patched my osc to use a local directory as a package source. Patch is attached. remarks: The files will be symlinked, if they are available locally, and downloaded otherwise. To copy the files to the cache even for local files, change the "copy_local" flag from the default of "0" to "1" (usefull for DVDs, which are not in the drive all the time). Greetings, Stefan PS: I wanted to put this into bugzilla, but there was no Buildservice component ...