#!/bin/bash
# rotates webserver log files
# Version 1.0
# Andy Dyrcz

# Files to rotate are in the format:
#
# FILEPREFIX.ENVIRONMENT.DATE

# Get PATHS and SITENAME from control script name
# get absolute path to program folder
ctl=`readlink -f "$0"`
# get ServerRoot folder containing folders: bin/, conf/, log/, www/
SERVERROOT=${ctl%/*/*}
LOGDIR=$SERVERROOT/logs

HOST=`hostname -s`
DOMAIN=`hostname -d`
TYPE=$(echo $HOSTNAME | cut -c5)

# Get the ENV var set from the hostname.
p="prod"
q="qa"
d="dev"
u="uat"
eval "ENV=\$$TYPE"

# prefixes for files to rotate
FILEPREFIXES=(access error upstream)

# backup with timestamp, clear working file, compress after 3 days, delete after 10 days
DATE=`date +%Y%m%d.%H%M`
#COMPRESS="+3"
#REMOVE="+10"
COMPRESS="+3"
REMOVE="+60"
ARCH=`uname`

if [ $ARCH == "Darwin" ]; then
    XARGS_REPL_ARG="-I {}"
else
    XARGS_REPL_ARG="-i"
fi

# Run compress and removes after all the sites files have been rotated.
for fp in ${FILEPREFIXES[*]}; do
   # copy/clear current log
   while read file; do
#       echo "cp $file $file.$DATE"
       cp $file $file.$DATE
#       echo "> $file"
       > $file
   done < <( find $LOGDIR/ -type f -name "$fp.$ENV.$DATE" )

   # do archive maintenance
#   echo "find $LOGDIR/ -type f ! -name \"*.gz\" -mtime $COMPRESS -name \"$fp.$HOST.$ENV.*\" -exec gzip -f {} \; &>/dev/null"
   find $LOGDIR/ -type f ! -name "*.gz" -mtime $COMPRESS -name "$fp.$HOST.$ENV.*" -exec gzip -f {} \; &>/dev/null

#   echo "find $LOGDIR/ -type f -mtime $REMOVE -exec rm -f {} \; &>/dev/null"
   find $LOGDIR/ -type f -mtime $REMOVE -exec rm -f {} \; &>/dev/null
done