This file is indexed.

postinst is in dbus 1.4.18-1ubuntu1.8.

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
# Copyright © 2003 Colin Walters <walters@debian.org>
# Copyright © 2006 Sjoerd Simons <sjoerd@debian.org>

set -e

MESSAGEUSER=messagebus
MESSAGEHOME=/var/run/dbus
LAUNCHER=/usr/lib/dbus-1.0/dbus-daemon-launch-helper

if [ "$1" = configure ]; then
    adduser --system \
            --quiet \
            --home "$MESSAGEHOME" \
            --no-create-home \
            --disabled-password \
            --group "$MESSAGEUSER"

    if ! dpkg-statoverride --list "$LAUNCHER" >/dev/null 2>&1; then
            chown root:"$MESSAGEUSER" "$LAUNCHER"
            chmod 4754 "$LAUNCHER"
    fi

    # This is idempotent, so it's OK to do every time. The system bus' init
    # script does this anyway, but you also have to do this before a session
    # bus will work, so we do this here for the benefit of people starting
    # a temporary session bus in a chroot
    dbus-uuidgen --ensure
fi

# Remove stop symlinks for runlevel 1 as killprocs already does the job for us.
if [ "$1" = configure ] && dpkg --compare-versions "$2" lt-nl 1.2.24-1; then
    rm -f /etc/rc1.d/K??dbus
fi

if [ "$1" = configure ] && [ -n "$2" ]; then
    # On upgrades, we only reload config, and don't restart (restarting the
    # system bus is not supported by upstream). The code added by
    # dh_installinit -r creates a start action, below.

    PID=$(status "dbus" 2>/dev/null | awk '/[0-9]$/ { print $NF }')
    if [ -n "$PID" ]; then
        # trigger an update notification which recommends to reboot
        [ -x /usr/share/update-notifier/notify-reboot-required ] && \
            /usr/share/update-notifier/notify-reboot-required || true
    fi

    # This is what the init script would do, but it's simpler (and less
    # dependent on sysvinit vs. Upstart) if we do it directly.
    # If it's not running (perhaps we're in a chroot) this will just fail
    # harmlessly, so there's no need to condition on status.
    dbus-send --print-reply --system --type=method_call \
            --dest=org.freedesktop.DBus \
            / org.freedesktop.DBus.ReloadConfig > /dev/null || true
fi

# Automatically added by dh_installinit
if [ -e "/etc/init/dbus.conf" ]; then
	invoke-rc.d dbus start || exit $?
fi
# End automatically added section
# Automatically added by dh_installinit
update-rc.d -f dbus remove >/dev/null || exit $?
# End automatically added section