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pre_upgrade() {
NEW=$1
OLD=$2
if [[ "$OLD" == "3.7"* || "$OLD" == "3.6"* ]]; then
echo "Cleaning up previous flutter installation."
rm -rf "/opt/flutter"
fi
}
post_upgrade() {
NEW=$1
OLD=$2
if [[ "$OLD" == "3.7"* || "$OLD" == "3.6"* ]]; then
if grep -q "flutterusers" /etc/group; then
echo "Removing group flutterusers as no longer needed."
groupdel "flutterusers"
fi
fi
}
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