cattail

#!/bin/bash
#
# $Id: cattail 1294 2009-09-27 04:14:08Z mheiges $
# $URL: https://mango.ctegd.uga.edu/svn/ApiCommonSystem/trunk/WDK/bin/cattail $
#


########################################################################
set_loglist(){

  if [[ -z $do_apache && -z $do_tomcat && -z $do_catalina ]]; then
    do_apache=1
    do_tomcat=1
  fi
  
  local apache_list
  local tomcat_list
  local catalina_list
  
  [ $do_apache ] && apache_list=( 
    "/var/log/httpd/$HOST/access_log"
    "/var/log/httpd/$HOST/error_log"
  )
  
  [ $do_tomcat ] && tomcat_list=( 
    "/usr/local/tomcat_instances/$PRODUCT/logs/$WEBAPP/"
  )
  
  [ $do_catalina ] && catalina_list=( 
    "/usr/local/tomcat_instances/$PRODUCT/logs/catalina.out"
  )
  
  LOG_LIST=( ${apache_list[@]} ${tomcat_list[@]} ${catalina_list[@]} )

}

########################################################################
usage() {
  this="$(basename "$0")"
  cat <<EOF

Place a tail on standard log files used by a WDK-based website that has been
installed using ApiDB file naming and location conventions.

Usage:
  $this [options] <hostname> [tomcat instance]

options are 
  -a  tail the Apache webserver access and error logs
  -t  tail the Tomcat webapp log directory (may be more than one log)
  -c  tail catalina.out
  
-a and -t are the defaults if no options are given. 

The default tomcat instance is the name match for the product directory in
which the webapp is installed. If your webapp is deployed in a different
instance you may specify it.

Examples:
 $this dev.toxodb.org
 $this dev.toxodb.org Test
 $this -a dev.toxodb.org

EOF
  
  exit 1
}

########################################################################
wstatus() {
   local instance=$1
   local webapp=$2
   instance_manager manage $instance list | egrep "^/$webapp:" | awk -F: "{print \$2}"
}

########################################################################
# MAIN
########################################################################

test -z $1 && usage;

while getopts 'atc' OPTION
do
  # sync changes wth tab completion function in apidb-tab-completion.sh
  case $OPTION in
  a)	do_apache=1
        ;;
  t)	do_tomcat=1
        ;;
  c)	do_catalina=1
        ;;
  esac
done
shift $(($OPTIND - 1))

TAIL=/usr/local/bin/xtail
TAIL_CMD="$TAIL --ansi"
test -x "$TAIL" || { echo "$TAIL" not found.; exit 1; }

HOST=$1
SITE_SYMLINK="/var/www/$HOST"

if [ ! -d $SITE_SYMLINK ]; then
    echo
    echo "Directory for '$HOST' not found. I was looking for"
    echo "'$SITE_SYMLINK'"
    echo "Better luck next time."
    echo
    exit 1
fi

WEBAPP="$(basename "$(readlink -n "$SITE_SYMLINK")")"

PRODUCT="$2"

if [ -z $PRODUCT ]; then
  CONTAINER="$(dirname $(readlink -n $SITE_SYMLINK))"
  PRODUCT=${CONTAINER##*/}
fi

set_loglist
for log in ${LOG_LIST[@]}; do
    if [ -e $log ]; then
        logs="$logs $log"
    else
        logs_not_found="$logs_not_found $log"
    fi
done

echo
[ ! -z "${logs_not_found[@]}" ] && {
  echo "Not found"
  for l in $logs_not_found; do echo "  $l"; done;
  echo
}
echo "Tailing"
for l in $logs; do echo "  $l"; done;
echo

$TAIL_CMD $logs