#!/bin/sh
#---------------------------------------------------------------
# Project         : Mandriva Linux
# Module          : rpm-helper
# File            : del-service
# Version         : $Id$
# Authors         : Frederic Lepied, Andrey Borzenkov
# Created On      : Tue Jul  9 08:11:26 2002
# Purpose         : helper script for rpm scriptlets to remove a
#                   service.
#---------------------------------------------------------------

if [ x$1 = x--no-sysv ]; then
    do_sysv=no
    shift
else
    do_sysv=yes
fi

if [ $# -lt 3 ]; then
    echo "usage: $0 [--no-sysv] <pkg name> <number installed> [<service name>] [<unit name> ...]" 1>&2
    exit 1
fi

# What init system are we currently using?
if /bin/mountpoint -q /sys/fs/cgroup/systemd; then
    init=systemd
else
    init=sysvinit
fi

pkg=$1				# name of the package
num=$2				# number of packages installed
if [ $do_sysv = yes ]; then
    srv=$3			# name of the SysV script
    shift 3
else
    srv=
    shift 2
fi
units="$*"			# systemd units

USERUNITDIR=/etc/systemd/system
RUNTIMEUNITDIR=/run/systemd/system
SYSTEMUNITDIR=/lib/systemd/system

find_unit() {
    unit=$(basename $1)

    # We need to normalise the systemd unit name as the native unit may not have
    # the same filename (sans it's .service suffix) as sysvinit script.
    # In this case, symlinks are used to mask the sysvinit file, but for enabling
    # and disabling units we must use the official name.

    searchunit=
    if [ -L "$USERUNITDIR/$unit" ]; then
        searchunit=$(/usr/bin/readlink -m "$USERUNITDIR/$unit")
    elif [ -e "$USERUNITDIR/$unit" ]; then
        searchunit="$USERUNITDIR/$unit"
    elif [ -L "$RUNTIMEUNITDIR/$unit" ]; then
        searchunit=$(/usr/bin/readlink -m "$RUNTIMEUNITDIR/$unit")
    elif [ -e "$RUNTIMEUNITDIR/$unit" ]; then
        searchunit="$RUNTIMEUNITDIR/$unit"
    elif [ -L "$SYSTEMUNITDIR/$unit" ]; then
        searchunit=$(/usr/bin/readlink -m "$SYSTEMUNITDIR/$unit")
    elif [ -e "$SYSTEMUNITDIR/$unit" ]; then
        searchunit="$SYSTEMUNITDIR/$unit"
    fi
    if [ -n "$searchunit" ]; then
        echo -n $searchunit
    fi
}


# If only a sysvinit service is given, then deal with a systemd unit of the same
# name. Specific specs can enable specific unit names as needed but this should
# catch the most common usage.
if [ -z "$units" ]; then
  units="$srv.service"
  searchunit=$(find_unit $units)
  if [ -n "$searchunit" ]; then
    units=$(basename $searchunit)
  fi
fi

if [ $num = 0 ]; then

    if [ -z "$DURING_INSTALL" ]; then
        if [ x$init = xsystemd ]; then
            /bin/systemctl stop $units
        elif [ -n "srv" ]; then
            /sbin/service $srv stop > /dev/null || :
        fi
    fi

    /bin/systemctl --no-reload --quiet disable $units >/dev/null
    [ -n "$srv" -a -f /etc/rc.d/init.d/$srv ] && /sbin/chkconfig --del $srv
    
    # Yes - this is very ugly workaround. chkconfig --del does daemon-reload,
    # but initscript is still there, so it remains loaded. Remove file and
    # reload again. Systemd units are supposed to provide postun script
    if [ -n "$srv" -a -f /etc/rc.d/init.d/$srv -a x$init = xsystemd ]; then
        /bin/rm -f /etc/rc.d/init.d/$srv
        /bin/systemctl daemon-reload
    fi
fi

# del-service ends here