#!/bin/bash
#Josh Pirog
#This is a simple backup script
#Creation Date: November 29, 2010
#Last Revision: December 6, 2010

#Declare variables

HOSTNAME=$( hostname )
DATETIME=$( date '+%Y-%m-%d' )

#File to read
BACKUPF=backup.conf

#Input variable, translate to all lower case, also directory to match in .conf file
DIRBACKUP=$( tr '[:upper:]' '[:lower:]' <<<"$1" )

#Input variable, translate, number of copies
NUMBACKUP=$( tr '[:upper:]' '[:lower:]' <<<"$2" )

#Determine which directories are to be backed up
DIRCUT=$( cat $BACKUPF | grep /*:/ | cut -f 1 -d ":" )

#Write into a temp file for later usage
echo $DIRCUT > 1_$$_temp

#Declare variables from temp file
DIRHOME=$( cut -f 1 -d ' ' 1_*_temp )
DIRCONF=$( cut -f 2 -d ' ' 1_*_temp )

#Determine config variables
CONFVAR=$( cat $BACKUPF | grep -v "^#" | grep "\=" | cut -f 2 -d "=" )

#Write into a temp file for later usage
echo $CONFVAR > 2_$$_temp

#Declare variables from temp file
COMP=$( cut -f 1 -d ' ' 2_*_temp )
EMAIL=$( cut -f 2 -d ' ' 2_*_temp )
BACKUPDIR=$( cut -f 3 -d ' ' 2_*_temp )
TARGTYPE=$( cut -f 4 -d ' ' 2_*_temp )
TARGSERV=$( cut -f 5 -d ' ' 2_*_temp )
TARGFS=$( cut -f 6 -d ' ' 2_*_temp )
USER=$( cut -f 7 -d ' ' 2_*_temp )
PASS=$( cut -f 8 -d ' ' 2_*_temp )

if [ ! -d $BACKUPDIR ]
    then
        mkdir /backup
fi

if [ ! -d $BACKUPDIR/daily ]
    then
        mkdir /backup/daily
fi

if [ ! -d $BACKUPDIR/weekly ]
    then
        mkdir /backup/weekly
fi

if [ ! -d $BACKUPDIR/monthly ]
    then
        mkdir /backup/monthly
fi

#Display the variable names and what is stored in them
#echo "Directories to be backed up:"
#echo "\$DIRHOME = $DIRHOME"
#echo "\$DIRCONF = $DIRCONF"
#echo ""
#echo "Configuration variables:"
#echo "\$COMP = $COMP"
#echo "\$EMAIL = $EMAIL"
#echo "\$BACKUPDIR = $BACKUPDIR"
#echo "\$TARGTYPE = $TARGTYPE"
#echo "\$TARGSERV = $TARGSERV"
#echo "\$TARGFS = $TARGFS"
#echo "\$USER = $USER"
#echo "\$PASS = $PASS"

fHomeBackup()
{
    ACTDIR=$( cat $BACKUPF | grep /*:/ | cut -f 2 -d ":" )
    echo $ACTDIR > 3_$$_temp
    VALDIR=$( cat 3_*_temp | cut -f 1 -d " " )

    tar cvf $HOSTNAME\.$DIRHOME\.$DATETIME\.tar $VALDIR
    $COMP $HOSTNAME\.$DIRHOME*.tar

    mv $HOSTNAME\.$DIRHOME* $BACKUPDIR\$NUMBACKUP

    ls -R $VALDIR > /var/log/backup/$HOSTNAME\.$DIRHOME\.$DATETIME

}

fConfBackup()
{
    ACTDIR=$( cat $BACKUPF | grep /*:/ | cut -f 2 -d ":"
    echo $ACTDIR > 3_$$_temp
    VALDIR=$( cat 3_*_temp | cut -f 2 -d " " )

    tar cvf $HOSTNAME\.$DIRCONF\.$DATETIME\.tar $VALDIR
    $COMP $HOSTNAME\.$DIRCONF*.tar

    mv $HOSTNAME\.\$DIRCONF* $BACKUPDIR\$NUMBACKUP

    ls -R $VALDIR > /var/log/backup/$HOSTNAME\.$DIRHOME\.DATETIME
}

fCronDump()
{
    crontab -l > 4_$$_temp
}

case $DIRBACKUP in

'home')
    case $NUMBACKUP in
        'daily')
            fHomeBackup
            fCronDump
            echo "\@daily /home/joshie/pirog.josh.backup.phase3 $DIRBACKUP $NUMBACKUP >> 4_*_temp"
            crontab 4_*_temp
        ;;

        'weekly')
            fHomeBackup
            fCronDump
            echo "\@weekly /home/joshie/pirog.josh.backup.phase3 $DIRBACKUP $NUMBACKUP >> 4_*_temp"
            crontab 4_*_temp
        ;;

        'monthly')
            fHomeBackup
            fCronDump
            echo "\@monthly /home/joshie/pirog.josh.backup.phase3 $DIRBACKUP $NUMBACKUP >> 4_*_temp"
            crontab 4_*_temp
        ;;

        *)
            fHomeBackup
        ;;

    esac

;;

'config')
    case $NUMBACKUP in
        'daily')
            fConfBackup
            fCronDump
            echo "\@daily /home/joshie/pirog.josh.backup.phase3 $DIRBACKUP $NUMBACKUP >> 4_*_temp"
            crontab 4_*_temp
        ;;

        'weekly')
            fConfBackup
            fCronDump
            echo "\@weekly /home/joshie/pirog.josh.backup.phase3 $DIRBACKUP $NUMBACKUP >> 4_*_temp"
            crontab 4_*_temp
        ;;

        'monthly')
            fConfBackup
            fCronDump
            echo "\@monthly /home/joshie/pirog.josh.backup.phase3 $DIRBACKUP $NUMBACKUP >> 4_*_temp"
            crontab 4_*_temp
        ;;

        *)
            fConfBackup
        ;;

    esac

;;

*)
    echo "Please enter a valid directory from the config file."
;;

esac

rm *_temp