zulip/tools/find-unused-css

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#!/usr/bin/env bash
# Hackish tool for attempting to find unused IDs / classes in our CSS
for n in $(perl -lne 'print $1 while /[#.]([a-zA-Z0-9_-]+)/g' static/styles/zulip.css | sort -u); do
if [ "$(git grep "$n" | grep -cv '^static/styles/zulip.css')" -eq 0 ]; then
echo "$n"
fi
done