This file is indexed.

postinst is in maas-proxy 2.0.0~beta3+bzr4941-0ubuntu1.

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

if [ "$1" = "configure" ]
then
    # Stop the squid3 instance that came with the squid3 package.
    # We run our own squid3 instances.
    # Handle both versions of the name, for safety.
    for SQUID in squid squid3; do
        systemctl stop ${SQUID} >/dev/null 2>&1 || true
        systemctl disable ${SQUID} >/dev/null 2>&1 || true
    done

    # Ensure log folder is created.
    mkdir -p /var/log/maas/proxy
    chown -R proxy:proxy /var/log/maas/proxy

    # maas-proxy.conf is now generated by MAAS itself and if we are
    # upgrading from an earlier  version that used to ship maas-proxy.conf
    # in /etc/maas, it is safe to remove
    if [ -f /etc/maas/maas-proxy.conf ]; then
        rm /etc/maas/maas-proxy.conf
    fi

fi

# Automatically added by dh_systemd_enable
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask maas-proxy.service >/dev/null || true

# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled maas-proxy.service; then
	# Enables the unit on first installation, creates new
	# symlinks on upgrades if the unit file has changed.
	deb-systemd-helper enable maas-proxy.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 maas-proxy.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/maas-proxy" ]; then
		update-rc.d maas-proxy defaults >/dev/null
	fi
	if [ -x "/etc/init.d/maas-proxy" ] || [ -e "/etc/init/maas-proxy.conf" ]; then
		invoke-rc.d maas-proxy start || exit $?
	fi
fi
# End automatically added section
# Automatically added by dh_systemd_start
if [ -d /run/systemd/system ]; then
	systemctl --system daemon-reload >/dev/null || true
	deb-systemd-invoke start maas-proxy.service >/dev/null || true
fi
# End automatically added section