#!/bin/sh

set -e

old_version_suffix="$(echo "$2" | sed -rn 's/^([0-9]+\.[0-9]+).*/\1/p')"
if [ "$old_version_suffix" ]; then
    dpkg-maintscript-helper symlink_to_dir \
	/usr/share/doc/linux-perf "linux-perf-${old_version_suffix}" 5.16\~rc8-1\~exp1 linux-perf -- "$@"
fi

if [ "$1" = install ] || [ "$1" = upgrade ]
then
	for wrapper in /usr/bin/perf \
		       /usr/share/bash-completion/completions/perf \
		       /usr/share/man/man1/perf.1.gz; do
	    diversion="${wrapper%/perf*}/perf.wrapper${wrapper#*/perf}"
	    dpkg-divert --package linux-perf --divert "$diversion" --rename \
		--add "$wrapper"
	done
fi