Changing Permissions in Subversion
It took me entirely too long to figure this today. Perhaps Google will pick this up and save someone else the effort.
I had a file in Subversion which should have been executable but wasn’t. I tried changing the file permissions and checking in the file, but Subversion refused to do anything since the file hadn’t changed. I poked around with Google but didn’t find anything helpful.
Finally the nice folks over in #svn on irc.freenode.net told me the command is svn propset svn:executable "*" filename. Sister commands include propdel and proplist.