postinst is in memcached 1.4.25-2ubuntu1.
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.
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set -e
GROUP="memcache"
USER="memcache"
DATADIR="/nonexistent"
# shamelessly copied from debian gearman-job-server package...
case "$1" in
configure)
# creating memcache group if it isn't already there
if ! getent group $GROUP >/dev/null ; then
# Adding system group
addgroup --system $GROUP >/dev/null
fi
# creating memcache user if it isn't already there
if ! getent passwd $USER >/dev/null ; then
# Adding system user
adduser \
--system \
--disabled-login \
--ingroup $GROUP \
--home $DATADIR \
--no-create-home \
--gecos "Memcached" \
--shell /bin/false \
$USER >/dev/null
fi
if [ ! -e /etc/memcached.conf ]
then
mkdir -p /etc
cp /usr/share/memcached/memcached.conf.default /etc/memcached.conf
fi
;;
esac
# Automatically added by dh_systemd_enable
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask memcached.service >/dev/null || true
# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled memcached.service; then
# Enables the unit on first installation, creates new
# symlinks on upgrades if the unit file has changed.
deb-systemd-helper enable memcached.service >/dev/null || true
else
# Update the statefile to add new symlinks (if any), which need to be
# cleaned up on purge. Also remove old symlinks.
deb-systemd-helper update-state memcached.service >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_installinit
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ]; then
if [ -x "/etc/init.d/memcached" ]; then
update-rc.d memcached defaults >/dev/null
fi
if [ -x "/etc/init.d/memcached" ] || [ -e "/etc/init/memcached.conf" ]; then
invoke-rc.d memcached start || exit $?
fi
fi
# End automatically added section
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