Convert references to image files into data URIs

jquid2data.sh

#!/bin/sh
# Assumes pngs are in images/ under ./*.css
# Edits the files in-place. Make backups.
CSSD=${1:-${CSSD:-.}}
for c in $(ls ${CSSD}/*.css 2>/dev/null); do
  for i in ${CSSD}/images/*.png; do
    p=$(basename $i)
    b="$(base64 ${i})"
    perl -pi -e "s|images/${p}|data:image/png;base64,${b}|" ${c}
  done
done