add vendoring with go dep

vendor/github.com/vmware/govmomi/units/size.go

@@ -0,0 +1,109 @@
+/*
+Copyright (c) 2015 VMware, Inc. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package units
+
+import (
+	"errors"
+	"fmt"
+	"regexp"
+	"strconv"
+)
+
+type ByteSize int64
+
+const (
+	_  = iota
+	KB = 1 << (10 * iota)
+	MB
+	GB
+	TB
+	PB
+	EB
+)
+
+func (b ByteSize) String() string {
+	switch {
+	case b >= EB:
+		return fmt.Sprintf("%.1fEB", float32(b)/EB)
+	case b >= PB:
+		return fmt.Sprintf("%.1fPB", float32(b)/PB)
+	case b >= TB:
+		return fmt.Sprintf("%.1fTB", float32(b)/TB)
+	case b >= GB:
+		return fmt.Sprintf("%.1fGB", float32(b)/GB)
+	case b >= MB:
+		return fmt.Sprintf("%.1fMB", float32(b)/MB)
+	case b >= KB:
+		return fmt.Sprintf("%.1fKB", float32(b)/KB)
+	}
+	return fmt.Sprintf("%dB", b)
+}
+
+type FileSize int64
+
+func (b FileSize) String() string {
+	switch {
+	case b >= EB:
+		return fmt.Sprintf("%.1fE", float32(b)/EB)
+	case b >= PB:
+		return fmt.Sprintf("%.1fP", float32(b)/PB)
+	case b >= TB:
+		return fmt.Sprintf("%.1fT", float32(b)/TB)
+	case b >= GB:
+		return fmt.Sprintf("%.1fG", float32(b)/GB)
+	case b >= MB:
+		return fmt.Sprintf("%.1fM", float32(b)/MB)
+	case b >= KB:
+		return fmt.Sprintf("%.1fK", float32(b)/KB)
+	}
+	return fmt.Sprintf("%d", b)
+}
+
+var bytesRegexp = regexp.MustCompile(`^(?i)(\d+)([BKMGTPE]?)(ib|b)?$`)
+
+func (b *ByteSize) Set(s string) error {
+	m := bytesRegexp.FindStringSubmatch(s)
+	if len(m) == 0 {
+		return errors.New("invalid byte value")
+	}
+
+	i, err := strconv.ParseInt(m[1], 10, 64)
+	if err != nil {
+		return err
+	}
+	*b = ByteSize(i)
+
+	switch m[2] {
+	case "B", "b", "":
+	case "K", "k":
+		*b *= ByteSize(KB)
+	case "M", "m":
+		*b *= ByteSize(MB)
+	case "G", "g":
+		*b *= ByteSize(GB)
+	case "T", "t":
+		*b *= ByteSize(TB)
+	case "P", "p":
+		*b *= ByteSize(PB)
+	case "E", "e":
+		*b *= ByteSize(EB)
+	default:
+		return errors.New("invalid byte suffix")
+	}
+
+	return nil
+}