echo "curl is already installed"
	else
		echo "Installing curl:"
		sudo apt install curl -y
	fi

	export GOPATH=/tmp/gopath
	export PATH="${PATH}":"${GOPATH}"/bin

	if which mc &>/dev/null; then
		echo "mc is already installed"
	else
		echo "Installing mc:"
		go install github.com/minio/mc@latest
	fi

	if [ ! -x ./minio.${OLD_VERSION} ]; then
		echo "Downloading minio.${OLD_VERSION} binary"

		done
		echo "FAILED"
		purge "$WORK_DIR"
		exit 1
	fi

	sleep 1
	if pgrep minio; then
		# forcibly killing, to proceed further properly.
		if ! pkill -9 minio; then
			echo "no minio process running anymore, proceed."
		fi
	fi
}

function check_online() {
	if ! grep -q 'Status:' ${WORK_DIR}/dist-minio-*.log; then
		echo "1"
	fi
}

function purge() {
	rm -rf "$1"
}

// ShallowCopy - copies minimal information for READ MRF checks.
func (fi FileInfo) ShallowCopy() (n FileInfo) {
	n.Volume = fi.Volume
	n.Name = fi.Name
	n.VersionID = fi.VersionID
	n.Deleted = fi.Deleted
	n.Erasure = fi.Erasure
	return
}

// WriteQuorum returns expected write quorum for this FileInfo
func (fi FileInfo) WriteQuorum(dquorum int) int {
	if fi.Deleted {
		return dquorum
	}
	quorum := fi.Erasure.DataBlocks

  if [[ ! -f $MINIO_ACCESSKEY_SECRETKEY_TMP ]];then
    echo "credentials file does not exist"
    return 1
  fi
  if [[ $(cat $MINIO_ACCESSKEY_SECRETKEY_TMP|wc -l) -ne 2 ]];then
    echo "credentials file is invalid"
    rm -f $MINIO_ACCESSKEY_SECRETKEY_TMP
    return 1
  fi
  SVCACCT=$(head -1 $MINIO_ACCESSKEY_SECRETKEY_TMP)
  # Create the svcacct if it does not exist
  if ! checkSvcacctExists ; then

	partsMetadata := make([]FileInfo, len(onlineDisks))

	fi := newFileInfo(pathJoin(bucket, object), dataDrives, parityDrives)
	fi.VersionID = opts.VersionID
	if opts.Versioned && fi.VersionID == "" {
		fi.VersionID = mustGetUUID()
	}
	fi.DataDir = mustGetUUID()

	// Initialize erasure metadata.
	for index := range partsMetadata {
		partsMetadata[index] = fi
	}

	// Guess content-type from the extension if possible.

			ofi.TransitionVersionID = inputs[1].remoteVersionID
		}
		actual := fi.TransitionInfoEquals(ofi)
		if i == 0 && !actual {
			t.Fatalf("Test %d: Expected FileInfo's transition info to be equal: fi %v ofi %v", i, fi, ofi)
		}
		if i != 0 && actual {
			t.Fatalf("Test %d: Expected FileInfo's transition info to be inequal: fi %v ofi %v", i, fi, ofi)
		}
	}
	fi := FileInfo{
		TransitionTier:      inputs[0].tier,

	echo "minio executable binary not found in current directory"
	exit 1
fi

function download_old_release() {
	if [ ! -f minio.RELEASE.2020-10-28T08-16-50Z ]; then
		curl --silent -O https://dl.minio.io/server/minio/release/linux-amd64/archive/minio.RELEASE.2020-10-28T08-16-50Z
		chmod a+x minio.RELEASE.2020-10-28T08-16-50Z
	fi
}

function verify_rewrite() {
	start_port=$1

	export MINIO_ACCESS_KEY=minio

		}

		// If asked to save data.
		if len(fi.Data) > 0 || fi.Size == 0 {
			x.data.replace(fi.VersionID, fi.Data)
		}

		if fi.TransitionStatus != "" {
			ventry.ObjectV2.MetaSys[metaTierStatus] = []byte(fi.TransitionStatus)
		}
		if fi.TransitionedObjName != "" {
			ventry.ObjectV2.MetaSys[metaTierObjName] = []byte(fi.TransitionedObjName)
		}
		if fi.TransitionVersionID != "" {

				ModTime:   timeSentinel1970,
			}, nil
		}
		inData = xlMeta.data
		fi, err = xlMeta.ToFileInfo(volume, path, versionID, false, allParts)
	}
	if !data || err != nil {
		return fi, err
	}
	versionID = fi.VersionID
	if versionID == "" {
		versionID = nullVersionID
	}
	fi.Data = inData.find(versionID)
	if len(fi.Data) == 0 {
		// PR #11758 used DataDir, preserve it

		var metaArr []FileInfo
		for i := 0; i < 12; i++ {
			fi := test.fi1
			if i%2 == 0 {
				fi = test.fi2
			}
			metaArr = append(metaArr, fi)
		}

		parities := listObjectParities(metaArr, make([]error, len(metaArr)))
		parity := commonParity(parities, 5)
		var match int
		for _, fi := range metaArr {
			if fi.Erasure.ParityBlocks == parity {
				match++
			}
		}