Static gzip
Ben Maurer
bmaurer at andrew.cmu.edu
Sun Dec 23 00:54:20 MSK 2007
Hi,
I'm trying to gzip static files in nginx (without compressing the file
each time). I'd like to do this for two reasons:
1) The files we're serving are very frequently requested, we'd prefer
the CPU savings of not having to compress the files
2) We actually find that we get a good savings by using advdef (a gzip
encoder that uses 7zip to increase the compression ratio).
So far, I've found that doing this works:
set $okstring "";
if ($http_accept_encoding ~ "gzip") {
set $okstring "$okstring header";
}
if (-f $document_root/$document_uri.gz) {
set $okstring "$okstring file";
}
if ($okstring = " header file") {
rewrite "^(.*).js$" "$1.js.gz";
}
location ~ .*\.js.gz {
types { text/javascript gz; }
add_header Content-Encoding gzip;
add_header Vary Accept-Encoding;
}
However, this isn't the cleanest solution.
I was trying to find a good way to write a module that did this, but
couldn't figure out a way to intercept the request when it had been
mapped to a physical path. What's the best way to go about writing a
module that does this?
- Ben
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