#!/bin/bash

make_slave_backup() {

    generate_load 5

    rm -f $work_dir/omnipitr/tmp/omnipitr-helper-dst-pipe.out

    if (( pg_major_version >= 9 ))
    then
        $omnipitr_dir/bin/omnipitr-backup-slave -dg MD5,SHA-1 -P 54001 -cm -s gzip=$work_dir/omnipitr/archive -p $work_dir/omnipitr/pause.master-slave -t $work_dir/omnipitr/tmp/backup-slave/ -D $work_dir/data-master-slave/ -dl gzip=$work_dir/omnipitr/backup/ -f "master-slave-__FILETYPE__.tar__CEXT__" -l $work_dir/omnipitr/log-backup-slave -v -dp gzip=$test_dir/test-lib/helper-dst-pipe.sh
    else
        $omnipitr_dir/bin/omnipitr-backup-slave -dg MD5,SHA-1 -s gzip=$work_dir/omnipitr/archive -p $work_dir/omnipitr/pause.master-slave -t $work_dir/omnipitr/tmp/backup-slave/ -D $work_dir/data-master-slave/ -dl gzip=$work_dir/omnipitr/backup/ -f "master-slave-__FILETYPE__.tar__CEXT__" -l $work_dir/omnipitr/log-backup-slave -v -dp gzip=$test_dir/test-lib/helper-dst-pipe.sh
    fi

    stop_load_generators

    if [[ ! -e $work_dir/omnipitr/backup/master-slave-data.tar.gz ]]
    then
        echo "$work_dir/omnipitr/backup/master-slave-data.tar.gz does not exist?!" >&2
        exit 1
    fi

    if [[ ! -e $work_dir/omnipitr/backup/master-slave-xlog.tar.gz ]]
    then
        echo "$work_dir/omnipitr/backup/master-slave-xlog.tar.gz does not exist?!" >&2
        exit 1
    fi

    different_md5s="$( cat $work_dir/omnipitr/tmp/omnipitr-helper-dst-pipe.out $work_dir/omnipitr/backup/master-slave-MD5.tar.gz | awk '$2~/data|xlog/' | tr '*' ' ' | sort | uniq  | wc -l )"
    if (( $different_md5s != 2 ))
    then
        echo "MD5s are not the same in checksum file, and in file generated by dst-pipe?!" >&2
        exit 1
    fi

    data_size="$( du -k $work_dir/omnipitr/backup/master-slave-data.tar.gz | awk '{print $1}')"
    xlog_size="$( du -k $work_dir/omnipitr/backup/master-slave-xlog.tar.gz | awk '{print $1}')"

    if (( $data_size < 1024 ))
    then
        echo "$work_dir/omnipitr/backup/master-slave-data.tar.gz exists but looks too small to be sensible!" >&2
        exit 1
    fi
    if (( $xlog_size < 8 ))
    then
        echo "$work_dir/omnipitr/backup/master-slave-xlog.tar.gz exists but looks too small to be sensible!" >&2
        exit 1
    fi

}