preinst is in mcelog 100-1fakesync1.
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 42 43 44 45 46 47 | #!/bin/sh
set -e
# From http://wiki.debian.org/DpkgConffileHandling
# Remove a no-longer used conffile
rm_conffile() {
local PKGNAME="$1"
local CONFFILE="$2"
[ -e "$CONFFILE" ] || return 0
local md5sum="$(md5sum $CONFFILE | sed -e 's/ .*//')"
local old_md5sum="$(dpkg-query -W -f='${Conffiles}' $PKGNAME | \
sed -n -e "\' $CONFFILE ' { s/ obsolete$//; s/.* //; p }")"
if [ "$md5sum" != "$old_md5sum" ]; then
echo "Obsolete conffile $CONFFILE has been modified by you."
echo "Saving as $CONFFILE.dpkg-bak ..."
mv -f "$CONFFILE" "$CONFFILE".dpkg-bak
else
echo "Removing obsolete conffile $CONFFILE ..."
rm -f "$CONFFILE"
fi
}
if [ "$1" = install ] || [ "$1" = upgrade ]; then
# Cleanup files related to cron-mode
if dpkg --compare-versions "$2" le "0.9~pre1-1"; then
rm_conffile mcelog /etc/logrotate.d/mcelog
rm_conffile mcelog /etc/cron.d/mcelog
if [ -e /etc/cron.d/mcelog ]; then
# Disable the crontab to avoid annoying messages
touch /etc/mcelog-disabled
else
# Cleanup now-useless file
rm -f /etc/mcelog-disabled
fi
fi
# Move /etc/mcelog.conf to /etc/mcelog/mcelog.conf
if dpkg --compare-versions "$2" lt "1.0~pre1-1"; then
if [ -e /etc/mcelog.conf ] && [ ! -e /etc/mcelog/mcelog.conf ]; then
[ -d /etc/mcelog ] || mkdir -p /etc/mcelog
mv /etc/mcelog.conf /etc/mcelog/mcelog.conf
fi
fi
fi
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