#!/bin/sh

if [ ! "$#" = 1 ]
then
    echo "Usage: $1 NGINX-LOG-FILE"
    exit 1
fi

set -e

sample="$1"
items="gtk%2B-3 glib-2 coreutils-8 python-3 r-minimal-[34] openmpi-4 hwloc-2 gfortran-7"

for i in $items
do
    # Tweak the regexp so we don't catch ".drv" substitutes as these
    # usually compress better with gzip.
    lzip="$(grep -E "/lzip/[[:alnum:]]{32}-$i\\.[[:digit:]]+(\\.[[:digit:]]+)? " < "$sample" | wc -l)"
    gzip="$(grep -E "/gzip/[[:alnum:]]{32}-$i\\.[[:digit:]]+(\\.[[:digit:]]+)? " < "$sample" | wc -l)"
    echo "$i: gzip/lzip ratio: $gzip/$lzip $(($gzip * 100 / $lzip))%"
done