src/forrestbot/scripts/launch-overseer

#!/bin/sh

# Copyright 2002-2004 The Apache Software Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

###################################################
# Convenience script for running 'overseer' for use
# by the webapp, and watching the output.
###################################################

. `dirname $0`/local-vars

NAMEDPIPE=$WEBAPP/WEB-INF/commands

if [ ! -p "$NAMEDPIPE" -a -e "$NAMEDPIPE" ]; then
  echo "----------------------------------"
  echo "ERROR: The file:"
  echo "  $NAMEDPIPE"
  echo "exists and is not a named pipe. Please delete it and try again"
  echo "----------------------------------"
  exit
fi
[ ! -e "$NAMEDPIPE" ] && mkfifo $NAMEDPIPE

OVERSEER_LOG=overseer.log

nohup ./overseer < $NAMEDPIPE > $OVERSEER_LOG &

# Touch the two log files to stop the tail breaking
>> $OVERSEER_LOG
>> $REFRESH_LOG

PID=$!
echo "------------------------------------"
echo "Forrestbot 'overseer' server running"
echo
echo "pid               : $PID"
echo "command read from : $NAMEDPIPE"
echo "logs written to   : $REFRESH_LOG"
echo "------------------------------------"
echo
echo "Now tailing logs... press ctrl-c to exit"

tail -f $REFRESH_LOG $OVERSEER_LOG