exitCode = 1
	}
	if filepath.Base(filename) == "go1.4.txt" {
		// No use for blank lines in api files, except go1.4.txt
		// used them in a reasonable way and we should let it be.
	} else if strings.HasPrefix(s, "\n") || strings.Contains(s, "\n\n") {
		log.Printf("%s: contains a blank line", filename)
		exitCode = 1
	}
	if s == "" {
		log.Printf("%s: empty file", filename)
		exitCode = 1

func (h *metricsV3Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	pathComponents := mux.Vars(r)["pathComps"]
	isListingRequest := r.Form.Has("list")

	var buckets []string
	if strings.HasPrefix(pathComponents, "/bucket/") {
		// bucket specific metrics, extract the bucket name from the path.
		// it's the last part of the path. e.g. /bucket/api/<bucket-name>
		bucketIdx := strings.LastIndex(pathComponents, "/")

		reqEndTime := time.Now().UTC()

		if globalTrace.NumSubscribers(madmin.TraceS3|madmin.TraceInternal) == 0 {
			// no subscribers nothing to trace.
			return
		}

		tt := madmin.TraceInternal
		if strings.HasPrefix(tc.FuncName, "s3.") {
			tt = madmin.TraceS3
		}

		// Calculate input body size with headers
		reqHeaders := r.Header.Clone()
		reqHeaders.Set("Host", r.Host)
		if len(r.TransferEncoding) == 0 {

		refName        = rel.Name + "."
		values         = rValues.Interface()
	)

	for name, ok := range selectColumns {
		columnName := ""
		if strings.HasPrefix(name, refName) {
			columnName = strings.TrimPrefix(name, refName)
		}

		if columnName != "" {
			if ok {
				selects = append(selects, columnName)
			} else {
				omits = append(omits, columnName)

	b := bytealg.MakeNoZero(n)[:n:n]
	bp := copy(b, s[0])
	for _, v := range s[1:] {
		bp += copy(b[bp:], sep)
		bp += copy(b[bp:], v)
	}
	return b
}

// HasPrefix reports whether the byte slice s begins with prefix.
func HasPrefix(s, prefix []byte) bool {
	return len(s) >= len(prefix) && Equal(s[:len(prefix)], prefix)
}

// HasSuffix reports whether the byte slice s ends with suffix.

	metricsCache := newMetricsCache()
	mgMap := make(map[collectorPath]*MetricsGroup)
	bucketMGMap := make(map[collectorPath]*MetricsGroup)
	for _, mg := range allMetricGroups {
		if !strings.HasPrefix(string(mg.CollectorPath), clusterBasePath) {
			mg.AddExtraLabels(
				serverName, globalLocalNodeName,
				// poolIndex, strconv.Itoa(globalLocalPoolIdx),
			)
		}
		mg.SetCache(metricsCache)

func parsEnvEntry(envEntry string) (envKV, error) {
	envEntry = strings.TrimSpace(envEntry)
	if envEntry == "" {
		// Skip all empty lines
		return envKV{
			Skip: true,
		}, nil
	}
	if strings.HasPrefix(envEntry, "#") {
		// Skip commented lines
		return envKV{
			Skip: true,
		}, nil
	}
	envTokens := strings.SplitN(strings.TrimSpace(strings.TrimPrefix(envEntry, "export")), config.EnvSeparator, 2)

	var signature [80]byte
	_, err = io.ReadFull(cr.reader, signature[:])
	if err == io.EOF {
		err = io.ErrUnexpectedEOF
	}
	if err != nil {
		cr.err = err
		return n, cr.err
	}
	if !bytes.HasPrefix(signature[:], []byte("chunk-signature=")) {
		cr.err = errMalformedEncoding
		return n, cr.err
	}
	b, err := cr.reader.ReadByte()
	if err == io.EOF {
		err = io.ErrUnexpectedEOF
	}
	if err != nil {

	}).Where("name in ?", names).Find(ctx)
	if err == nil {
		t.Fatalf("Preload should failed, but got nil")
	}

	if DB.Dialector.Name() == "mysql" {
		// mysql 5.7 doesn't support row_number()
		if strings.HasPrefix(DB.Dialector.(*mysql.Dialector).ServerVersion, "5.7") {
			return
		}
	}
	results, err = db.Preload("Pets", func(db gorm.PreloadBuilder) error {
		db.LimitPerRecord(5)
		return nil

		if !strings.EqualFold(encodingType, "url") {
			return ErrInvalidEncodingMethod
		}
	}

	if !IsValidObjectPrefix(prefix) {
		return ErrInvalidObjectName
	}

	if marker != "" && !HasPrefix(marker, prefix) {
		return ErrNotImplemented
	}

	return ErrNone
}

func (api objectAPIHandlers) ListObjectVersionsHandler(w http.ResponseWriter, r *http.Request) {
	api.listObjectVersionsHandler(w, r, false)