Pull in new changes from minio-io/objectdriver and minio-io/donut

Godeps/_workspace/src/github.com/minio-io/cli/int.go

@@ -0,0 +1,51 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+// IntFlag - a flag of integer type
+type IntFlag struct {
+	Name   string
+	Value  int
+	Usage  string
+	EnvVar string
+	Hide   bool
+}
+
+// String -
+func (f IntFlag) String() string {
+	return withEnvHint(f.EnvVar, fmt.Sprintf("%s \"%v\"\t%v", prefixedNames(f.Name), f.Value, f.Usage))
+}
+
+// Apply -
+func (f IntFlag) Apply(set *flag.FlagSet) {
+	if f.EnvVar != "" {
+		for _, envVar := range strings.Split(f.EnvVar, ",") {
+			envVar = strings.TrimSpace(envVar)
+			if envVal := os.Getenv(envVar); envVal != "" {
+				envValInt, err := strconv.ParseInt(envVal, 0, 64)
+				if err == nil {
+					f.Value = int(envValInt)
+					break
+				}
+			}
+		}
+	}
+
+	eachName(f.Name, func(name string) {
+		set.Int(name, f.Value, f.Usage)
+	})
+}
+
+func (f IntFlag) getName() string {
+	return f.Name
+}
+
+func (f IntFlag) isNotHidden() bool {
+	return !f.Hide
+}