am-utils 6.2+rc20110530-3.2ubuntu1 / postinst

#!/bin/bash -e

PATH=/usr/sbin:/sbin:/usr/bin:/bin
export PATH

# Defaults
CONFIG=/etc/default/am-utils

# Source debconf library.
. /usr/share/debconf/confmodule

# Simple function to escape single quotes
escape_single_quotes() {
    echo "$@" | sed -e "s!'!'\"'\"'!g"
}

if [[ $1 = configure ]]; then

  # Complain if we cannot connect to the amq service for localhost
  if amq-check-wrap
  then
    :
  else
    db_input high am-utils/rpc-localhost
    db_go
  fi

  TMPFILE=$(mktemp /tmp/am-utils-postinst.XXXXXX)
  trap "rm -f $TMPFILE" 0

  db_get am-utils/use-nis
  AM_UTILS_USE_NIS="`escape_single_quotes \"$RET\"`"
  db_get am-utils/nis-master-map
  AM_UTILS_NIS_MASTER_MAP="`escape_single_quotes \"$RET\"`"
  db_get am-utils/nis-master-map-key-style
  AM_UTILS_NIS_MASTER_MAP_KEY_STYLE="`escape_single_quotes \"$RET\"`"
  db_get am-utils/nis-key
  AM_UTILS_NIS_KEY="`escape_single_quotes \"$RET\"`"
  db_get am-utils/nis-custom
  AM_UTILS_NIS_CUSTOM="`escape_single_quotes \"$RET\"`"
  db_get am-utils/map-net
  AM_UTILS_MAP_NET="`escape_single_quotes \"$RET\"`"
  db_get am-utils/map-home
  AM_UTILS_MAP_HOME="`escape_single_quotes \"$RET\"`"
  db_get am-utils/map-others
  AM_UTILS_MAP_OTHERS="`escape_single_quotes \"$RET\"`"
  db_get am-utils/clustername
  AM_UTILS_CLUSTERNAME="`escape_single_quotes \"$RET\"`"

  echo '# Am-utils configuration generated automatically by am-utils.config $Revision: 1.9 $' > $TMPFILE
  cat >> "$TMPFILE" <<+++EOD+++
#
# Change this file using "dpkg-reconfigure am-utils"
#
AM_UTILS_USE_NIS='$AM_UTILS_USE_NIS'
AM_UTILS_NIS_MASTER_MAP='$AM_UTILS_NIS_MASTER_MAP'
AM_UTILS_NIS_MASTER_MAP_KEY_STYLE='$AM_UTILS_NIS_MASTER_MAP_KEY_STYLE'
AM_UTILS_NIS_KEY='$AM_UTILS_NIS_KEY'
AM_UTILS_NIS_CUSTOM='$AM_UTILS_NIS_CUSTOM'
AM_UTILS_MAP_NET='$AM_UTILS_MAP_NET'
AM_UTILS_MAP_HOME='$AM_UTILS_MAP_HOME'
AM_UTILS_MAP_OTHERS='$AM_UTILS_MAP_OTHERS'
AM_UTILS_CLUSTERNAME='$AM_UTILS_CLUSTERNAME'
+++EOD+++

  ucf --debconf-ok $TMPFILE $CONFIG

fi

# Stop any debconf pipes
db_stop

# Kill the old and start the new am-utils.
# This is done here to keep am-utils alive across the update, in case
# the archives are on an automounted directory!

pid=""
tmpfile=""
wasrunning=no

if [ -s /var/run/am-utils-upgrade.pid ]; then
    tmpfile=/var/run/am-utils-upgrade.pid
    pid=`cat $tmpfile`
fi

if [ -n "$pid" ]; then
    echo "Stopping amd (pid $pid)."
    wasrunning=yes
    kill -s TERM $pid || true
    # let it cleanly shut down...
    while kill -s 0 $pid >/dev/null 2>&1; do
	sleep 1
    done
else
    # Run the the stop amd only if there's a current one running
    # (in case we're reconfiguring)
    if [ -n "`amq -p 2>/dev/null`" ]
    then
	wasrunning=yes
	invoke-rc.d am-utils stop
    fi
fi

if [ -n "$tmpfile" ]; then
	rm -f $tmpfile
fi

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


### Begin autodetect stuck amds...
# These are functions to try killing runaway amds
waittodie() {
    pid="$1"
    i=0
    while [ $i -le 30 ]
    do
	if ! kill -s 0 "$pid" > /dev/null 2>&1
	then
	    break
	fi
	sleep 1
	echo -n "."
	i="`expr $i + 1`"
    done
}

trykill() {
    how="$1"
    sig="$2"
    pid="$3"
    echo -n "Trying to kill $how $pid... [max 30 seconds wait] "
    kill -s "$sig" "$pid" > /dev/null 2>&1 || true
    waittodie "$pid"
}

instabort() {
    echo
    echo "Aborting am-utils's installation..."
    echo "You might want to reboot to clear up amd's state before"
    echo "attempting to reconfigure this package..."
    echo
    exit 1
}

# Try to find amd-managed mount points.
mntpts=""
pids=""
if [ "$1" = install ]
then
    while read fs mntpt other
    do
	pid="`echo $fs | sed -e 's/^.*(pid\([0-9]\+\))$/\1/'`"
	case "$pid" in
	    [0-9]*)
		mntpts="$mntpts $mntpt"
		if echo "$pids" |egrep -vq "(^|[[:space:]])$pid(\$|[[:space:]])"
		then
		    pids="$pids $pid"
		fi
		;;
	esac
    done < /proc/mounts
fi

if test -n "$mntpts"
then
    while true
    do
	cat <<+++EOD+++

WARNING: I found some amd-managed mount-points still active...
	 This could be due to some problems with the old amd package
	 and a glibc upgrade...

+++EOD+++
	echo -n "Should I try to fix the problem (yes/no) ? "
	read ans
	echo
	case "$ans" in
	    [yY][eE][sS])
		echo "Found amd mount points from PIDs: $pids."
		for pid in $pids
		do
		    echo -n "Examining pid $pid... "
		    if kill -s 0 "$pid" > /dev/null 2>&1
		    then
			echo "alive"
			trykill "normally" TERM "$pid"
			if kill -s 0 "$pid" > /dev/null 2>&1
			then
			    echo " did not work... trying harder..."
			    trykill "violently" KILL "$pid"
			    if kill -s 0 "$pid" > /dev/null 2>&1
			    then
				echo " did not work either..."
				instabort
			    fi
			else
			    echo " dead !"
			fi
		    else
			echo "dead"
		    fi
		done
		echo "Found amd mount points at: $mntpts"
		for mntpt in $mntpts
		do
		    echo -n "Trying to umount $mntpt... [max 30 seconds wait] "
		    umount "$mntpt" > /dev/null 2>&1 &
		    pid="$!"
		    waittodie "$pid"
		    if kill -s 0 "$pid" > /dev/null 2>&1
		    then
			echo " umount stuck..."
			instabort
		    else
			if fgrep -q " $mntpt " /proc/mounts
			then
			    echo " can't umount..."
			    instabort
			else
			    echo " done"
			fi
		    fi
		done
		echo
		echo "Everything should be fixed... proceeding..."
		echo
		break
		;;
	    [nN][oO])
		instabort
		;;
	    *)
		echo "Please answer \"yes\" or \"no\"..."
		;;
	esac
    done
fi
### End autodetect stuck amds...

invoke-rc.d am-utils start || :

exit 0