Google Codeの Subversionで max-ageの設定ができるらしい

SubversionFAQ - support - Subversion FAQ - Project Hosting on Google Code

How do I set the cache headers for Subversion?

Cache headers for a page hosted in Subversion can be controlled by setting the google-cache-control:max-age property. Simply set the value of google-cache-control to the number of seconds that the item should be cached. The default is 60 seconds. To disable caching, set the property to 0.

素晴らしい！やっぱり需要があるのね。
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