preinst is in netplan 1.10.1-5.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | #!/bin/sh
set -e
#
# netplan pre-installation script
#
TRAD_ACL=/var/lib/plan/netplan.dir/.netplan-acl
ETC_ACL=/etc/plan/netplan-acl
if [ -r $TRAD_ACL ] && [ ! -L $TRAD_ACL ]
then
if [ -r $ETC_ACL ]
then
cat >&2 <<EOF
WARNING: you have both $TRAD_ACL and $ETC_ACL file.
$TRAD_ACL should be a symlink to $ETC_ACL.
Please fix before attempting to reinstall.
EOF
exit 1
else
echo >&2 "Moving $TRAD_ACL to $ETC_ACL"
cp $TRAD_ACL $ETC_ACL && rm -f $TRAD_ACL
fi
fi
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