#!/bin/sh
source=$1
backup=$2

mk_dir() {
    # 각각의 폴더 생성을 위해 금년도, 이번달, 오늘 날짜를 각각 변수로 지정합니다.
    Y=`date +%Y`
    m=`date +%m`
    d=`date +%d`

    foldYmd=`ls -d $backup/$Y/$m/$d`
    if [ "$foldYmd" != "$backup/$Y/$m/$d" ]; then
        mkdir -p ~$backup/$Y
        mkdir -p ~$backup/$Y/$m
        mkdir -p $backup/$Y/$m/$d
    fi

    now=`date +%H%M`
    mkdir -p $backup/$Y/$m/$d/$now
}

backup() {
    echo "source :$source backup : $backup"
    date_file=`ls $backup/date`
    if [ "$date_file" = "$backup/date" ]; then
        # 1년 넘은 쪽지들은 삭제
        find $backup -type d -mtime +365 -exec rm -r {} \;
        list=`find $source -type f -newer $backup/date`
        count=`echo $list | wc -c`
        if [ "$count" != 1 ]; then
            mk_dir
            IFS="
            "
            for l in $list ; do
            cp -av $l $backup/$Y/$m/$d/$now
            done
                IFS=""
        fi
        date > $backup/date
    else
        mk_dir
        find $backup -type f -exec cp -av {} $backup/$Y/$m/$d/$now \;
        date > $backup/date
    fi
}

check_source=`ls -d $source`
if [ "$check_source" = "$source" ]; then
    check_backup=`ls -d $backup`
    if [ "$check_backup" = "$backup" ]; then
        backup
    else
        echo "there is no $backup"
    fi
else
    echo "there is no $source"
fi
exit