This file is indexed.

postinst is in hplip 3.17.10+repack0-5.

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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#! /bin/sh

set -e

case "$1" in
    configure)
	# add hplip system user (requires adduser >= 3.34)
	# don't muck around with this unless you KNOW what you're doing
	echo "Creating/updating hplip user account..."
	adduser --system --ingroup lp --home /var/run/hplip \
		--gecos "HPLIP system user" --shell /bin/false \
		--quiet --disabled-password hplip || {
	  # adduser failed. Why?
	  if getent passwd hplip >/dev/null ; then
	     echo "Non-system user hplip found. I will not overwrite a non-system" >&2
	     echo "user.  Remove the user and reinstall hplip." >&2
	     exit 1
	  fi
	  # unknown adduser error, simply exit
	  exit 1
	}

	for i in /var/run/hplip
	do
		if ! dpkg-statoverride --list $i > /dev/null; then
			dpkg-statoverride --update --add hplip root 755 $i
		fi
	done

	# Adjust permissions and ownerships of the /var/log/hp/tmp (fax spool)
	# directory (https://bugs.launchpad.net/bugs/1187132)
	for i in /var/log/hp/tmp
	do
		if ! dpkg-statoverride --list $i > /dev/null; then
			dpkg-statoverride --update --add root lp 775 $i
		fi
	done


	# Remove shutdown and reboot links; this init script does not need them.
	if dpkg --compare-versions "$2" lt "1.7.3-0ubuntu4"; then
		update-rc.d -f hplip remove
	fi

	# Fix PPD file paths in /etc/hp/hplip.conf to make sure that hp-setup
	# finds the fax PPDs
	perl -p -i -e 's:^(\s*ppd=).*$:\1/usr/share/ppd/hplip/HP:' /etc/hp/hplip.conf
	perl -p -i -e 's:^(\s*ppdbase=).*$:\1/usr/share/ppd/hplip:' /etc/hp/hplip.conf
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac



exit 0