nginx rewrite for page_cached rails 3.1 assets redirect

gistfile1.txt

I page_cache files with rails 3.1 - but with the new assets pipeline, old .css and .js files are removed at deployment, so the page_cached files point to broken versions.

Hacking it to keep old versions would be one solution, the other is to have nginx serve the current version of the assets file if it can't find the one requested:


    location ~* ^/assets {
      if (!-f $request_filename) {
        rewrite ^/assets/(.*)-(.*)\.(.*) /assets/$1.$3 last;
      }
    }