tinc/debian/preinst

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#!/bin/sh
NETSFILE="/etc/tinc/nets.boot"
SYSTEM="/lib/systemd/system"
WANTS="/etc/systemd/system/multi-user.target.wants"
set -e
case "$1" in
upgrade)
if dpkg --compare-versions "$2" '<<' "1.0.27-1"; then
if [ -f "$NETSFILE" ]; then
echo -n "Creating systemd service instances from nets.boot:"
mkdir -p "$WANTS"
egrep '^[ ]*[a-zA-Z0-9_-]+' $NETSFILE | while read net args; do
echo -n " $net"
ln -s "$SYSTEM/tinc@.service" "$WANTS/tinc@$net.service" 2>/dev/null || true
done
echo "."
fi
fi
;;
*)
;;
esac
#DEBHELPER#