less cached for Lighttpd

gistfile1.sh

#!/bin/sh

if [ -z "$1" ]; then
    exit 1
fi

echo "/* Using less-cache */"

id="$(sha512sum "$1" | cut -d' ' -f1)"
file="/tmp/less.${id}.css"

now=$(date +%s)
if [ ! -e "$file" ]; then
    # requires lessc and clean-css
    /usr/bin/lessc --clean-css="--s0" "$1" > "$file"
    chmod ugo+rwx "$file"
fi
cat $file
echo "/* less-cache took "$(expr $(date +%s) - $now)"s */"
exit 0

# Configuration for Lighttpd:
# server.modules += ( "mod_cgi" )
# cgi.assign      += (
#	".less"  => "/usr/local/bin/less-cache",
# )