postinst is in php-htmlpurifier 4.7.0-2.
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 | #!/bin/sh
set -e
if [ "$1" = "configure" ] ; then
if ! dpkg-statoverride --list /var/lib/php-htmlpurifier/Serializer >/dev/null 2>&1; then
dpkg-statoverride --update --add www-data www-data 2770 /var/lib/php-htmlpurifier/Serializer
fi
fi
exit 0
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