glog rotation + gzip

glog-rotate.sh

#!/bin/bash

NAME="service"
LIMIT="8000"
DELETELIMIT="500"

# Packing
DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd ) && cd $DIR
FILES=`ls -A1Lct ${NAME}.* | grep -v '.sh$' | grep -v '.zip$' | grep -v '.gz$'`
TYPES=`echo "$FILES" | grep -E '.[A-Z]+$' | wc -l`
LINKS=`ls -A1Lct ${NAME}.* | grep -E '.*[A-Z]+$' | xargs -I % readlink % | sort`
FILES=`echo "$FILES" | grep -Ev '.[A-Z]+$' | sort`
# Explicitly skip current + one more bunch of logs cause they can be
# weakly ordered
TOPACK=`comm -3 <(echo "$FILES") <(echo "$LINKS")`
if [ ! -z "$TOPACK" ]; then
  echo "$TOPACK" | xargs gzip
fi

# Cleanup
while [ `ls -sk ${NAME}.*.gz | awk 'BEGIN{s=0}{s=s+\$0}END{print int(s/1024)}'` -gt "${LIMIT}" -a "${DELETELIMIT}" -gt "0" ]; do
  DELETELIMIT=`expr $DELETELIMIT - 1`
  FILE=`ls -L1ct ${NAME}.* | tail -n 1`
  if [ -f "${FILE}" ]; then
    rm "${DIR}/${FILE}" > /dev/null 2>&1
  fi
done