postrm is in munin-node 1.4.6-3ubuntu3.
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 29 30 31 32 33 34 35 36 37 38 39 40 41 | #! /bin/sh
set -e
# workaround for bug #198522
delete_dir_if_empty() {
	if [ ! -d "$1" ]; then
		return 0;
	fi
	rmdir --ignore-fail-on-non-empty $1;
}
if [ "$1" = "purge" ]; then
	# delete dangling symlinks
	test -d /etc/munin/plugins/ && for plugin in $(find /etc/munin/plugins/ -type l); do
		if [ ! -e $(readlink $plugin) ]; then
			rm $plugin
		fi
	done
	rm -f /var/lib/munin/plugin-state/*.state
	rm -f /var/log/munin/munin-node.log*
	rm -f /var/log/munin/munin-node-configure.log*
	dpkg-statoverride --remove /var/lib/munin/plugin-state
	# These are shared with munin, so only remove them if munin
	# isn't installed (or already purged).
	status=$(dpkg --get-selections munin)
	if [ -z "$status" ] || [ "${status%purge}" != "$status" ]; then
		dpkg-statoverride --remove /var/log/munin
		dpkg-statoverride --remove /var/lib/munin
	fi
	
	delete_dir_if_empty /var/lib/munin/plugin-state
	delete_dir_if_empty /var/lib/munin
	delete_dir_if_empty /var/log/munin
	delete_dir_if_empty /etc/munin/plugin-conf.d
	delete_dir_if_empty /etc/munin/plugins
	delete_dir_if_empty /etc/munin
fi
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