fedora-infrastructure/scripts/lock-wrapper/lock-wrapper.sh
Mike McGrath 38ae84092e Added lockwrapper to scrip
Note, the last log message was completely wrong
2010-02-22 13:33:28 -06:00

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#!/bin/bash
# Copyright (C) 2009 - Ricky Zhou ricky fedoraproject.org
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 or later.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
#
if [ $# -lt 2 ]; then
echo "Usage: $0 [name] [script]"
exit 1;
fi
NAME=$1
SCRIPT=$2
LOCKDIR="/var/tmp/$NAME"
PIDFILE="$LOCKDIR/pid"
function cleanup {
rm -rf "$LOCKDIR"
}
RESTORE_UMASK=$(umask -p)
umask 0077
if ! mkdir "$LOCKDIR"; then
echo "$LOCKDIR already exists, exiting"
PID=$(cat "$PIDFILE")
if [ -n "$PID" ]; then
echo "(pid $PID)"
fi
exit 1;
fi
trap cleanup EXIT SIGQUIT SIGHUP SIGTERM
echo $$ > "$PIDFILE"
$RESTORE_UMASK
eval "$SCRIPT"