#!/bin/bash -f

WORKDIR=`pwd`
YMDNUM=`date +%Y%m%d`
HOSTNAME=`hostname`

############ SET TARGET DIRECTORY ###############
#BAKDIR="${WORKDIR}/bkup_temp/blahome/kotsuki/"
#DATDIR="/home/kotsuki/"
BAKDIR="${WORKDIR}/bkup_temp/bkup_data1/kotsuki/"
DATDIR="/data1/kotsuki/"
####### NO NEED TO CHANGE
NUMDAT=`echo ${DATDIR} | sed -e "s%/%%g"`
FNLDAT="../data_bkup/${YMDNUM}_${NUMDAT}_${HOSTNAME}.tar.gz"
#################################################
EXTLIST=".f .f90 .F .c .cpp .pl .ctl .ncl \
             .txt .shp                        \
             .ctl .gs .gnu .cpt               \
             .sh .csh .ksh                    \
             .in .inc .h                      \
             Mkinclude Makefile "

EXCEPT1=""
LOGDAT=log.lsbkup
######################################################################################
echo '################################################################################'
echo '          Back Up Target   '  ${DATDIR}
echo '          Back Up Stored   '  ${BAKDIR}
echo '          Back Up Final    '  ${FNLDAT}
echo '          Extentions       '  ${EXTLIST}
echo '################################################################################'
##### memo #####
#  -f : file       exist or not
#  -d : directory  exist or not
######################################################################################
echo '          Generate Log Files on ' ${DATDIR}
declare -i COUNT
###### Display All files with ====> find ${DATDIR} -name "*" -print #####
FNUMTMP=`find ${DATDIR} -name "*" -print`

for FNUM1 in ` echo ${FNUMTMP}` ; do
#  echo ${DATDIR} ${FNUM1} # to check the file lists
  if [ ! -f ${FNUM1} ]; then  ### to check directory or not
#    echo "   this is directory  " ${FNUM1}
    : # null command to work "if"
  else
#    echo "   this is the file   " ${FNUM1}
    DIR1=`dirname ${FNUM1}`
    DIR2=`echo ${DIR1} \
              | sed -e "s%${DATDIR}%${BAKDIR}%"`
    FNUM2=`echo ${FNUM1} \
              | sed -e "s%${DATDIR}%${BAKDIR}%"`
    COUNT=0
    if [ ! -d ${DIR2} ]; then
      echo make new directory ${DIR2}
      mkdir -p ${DIR2}
    fi

    if [ ! -f ${DIR2}/${LOGDAT} ]; then
      ls -lsa ${DIR1} > ${DIR2}/${LOGDAT} # gen "ls -lsa" once a directory
#      echo loging files in this directory ${DIR2}
      :
    else
#      echo already existing log file ${DIR2}/${LOGDAT}
      :
    fi
    :
  fi
done

######################################################################################
echo '################################################################################'
echo '          Get Backup Files   on ' ${DATDIR}
###### Display All Extentions ====> find ${DATDIR} -name "*" -print #####
for EXT1 in ` echo ${EXTLIST}` ; do
  echo "                 PRESENT EXTENTION is  " ${EXT1}
  FNUMTMP=`find ${DATDIR} -name "*${EXT1}" -print`
  for FNUM1 in ` echo ${FNUMTMP}` ; do
#    echo "         found   " ${FNUM1}
    DIR1=`dirname ${FNUM1}`
#    echo "         from     " ${DIR1}
    DIR2=`echo ${DIR1} \
              | sed -e "s%${DATDIR}%${BAKDIR}%"`
#    echo "         into     " ${DIR2}
    FNUM2=`echo ${FNUM1} \
              | sed -e "s%${DATDIR}%${BAKDIR}%"`
#    echo "         copied   " ${FNUM2}

    if [ ! -d ${DIR2}  ] ; then mkdir -p ${DIR2}; fi
    if [ ! -f ${FNUM2} ] ;then
#        echo "         new      " ${FNUM2}
        cp -p ${FNUM1} ${DIR2} # not exit
        :
      else
#       echo "         rewrite  " ${FNUM2}
        cp -u ${FNUM1} ${DIR2} # exit "-u" checks the final update date
        :
    fi
    :
  done
done

######################################################################################
echo '################################################################################'
echo '          Get Backup Files   on ' ${DATDIR}
echo '          Finalize Backups   on ' ${DATDIR} into ${FNLDAT}
if [ -f ${FNLDAT} ] ; then rm -v ${FNLDAT}; fi
tar -zcvf ${FNLDAT} ${BAKDIR} > log.unko
echo '          Finalized Backup Size (MB)  ' `du -s -m ${BAKDIR}`
echo '          Finalized Backup Size (MB)  ' `du -s -m ${FNLDAT}`
###############################################################
# rm -rf ${BAKDIR}
# note: danger, recomend you to delete data manually