postinst is in findutils 4.6.0+git+20160126-2.
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 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | #! /bin/sh
set -e
if [ "$1" = "configure" ]; then
# up to 4.1.7-2 locatedb was in non-FHS-dir /var/lib/locate
if dpkg --compare-versions "$2" le-nl "4.1.7-2" ; then
if [ -f /var/lib/locate/locatedb ]; then
mv /var/lib/locate/locatedb /var/cache/locate/
rmdir /var/lib/locate 2>/dev/null || true
fi
fi
# Remove locatedb if we are upgrading from findutils with included locate.
# Sadly it does not really work to *not* do this if locate is going to be
# installed. "apt-get install locate" will first completely upgrade
# findutils (including running this script) before even _unpacking_ locate.
# Therefore # dpkg-query -W -f='${Status}'locate will be
# "something ok not-installed" when this script is run.
if [ -d /var/cache/locate/ ] && \
dpkg --compare-versions "$2" le-nl "4.2.31-1" && \
locatestatus=`dpkg-query -W -f='${Status}' locate 2> /dev/null` ; then
locatestatus=`echo $locatestatus | cut -f3 -d\ `
case "$locatestatus" in
not-installed | config-files)
rm -f /var/cache/locate/locatedb
rmdir --ignore-fail-on-non-empty /var/cache/locate/
;;
esac
fi
fi
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