postinst is in vlc-data 2.1.2-2build2.
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 27 28  | #!/bin/sh
set -e
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/vlc/lua/http/dialogs/.hosts 2.1.1 -- "$@"
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/vlc/lua/http/.hosts 2.1.1 -- "$@"
# End automatically added section
check_and_remove() {
	if test -d "$1"; then
		rmdir --ignore-fail-on-non-empty "$1"
	fi
}
case "$1" in
	configure)
		# Remove empty /etc/vlc directory (to work around bug #584185).
		if dpkg --compare-versions "$2" le "2.1.1"; then
			check_and_remove /etc/vlc/lua/http/dialogs
			check_and_remove /etc/vlc/lua/http
			check_and_remove /etc/vlc/lua
			check_and_remove /etc/vlc
		fi
		;;
esac
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