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

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

@@ -0,0 +1,73 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strings"
+)
+
+// StringSlice - type
+type StringSlice []string
+
+// Set -
+func (f *StringSlice) Set(value string) error {
+	*f = append(*f, value)
+	return nil
+}
+
+// String -
+func (f *StringSlice) String() string {
+	return fmt.Sprintf("%s", *f)
+}
+
+// Value -
+func (f *StringSlice) Value() []string {
+	return *f
+}
+
+// StringSliceFlag - a string slice flag type
+type StringSliceFlag struct {
+	Name   string
+	Value  *StringSlice
+	Usage  string
+	EnvVar string
+	Hide   bool
+}
+
+// String -
+func (f StringSliceFlag) String() string {
+	firstName := strings.Trim(strings.Split(f.Name, ",")[0], " ")
+	pref := prefixFor(firstName)
+	return withEnvHint(f.EnvVar, fmt.Sprintf("%s [%v]\t%v", prefixedNames(f.Name), pref+firstName+" option "+pref+firstName+" option", f.Usage))
+}
+
+// Apply -
+func (f StringSliceFlag) Apply(set *flag.FlagSet) {
+	if f.EnvVar != "" {
+		for _, envVar := range strings.Split(f.EnvVar, ",") {
+			envVar = strings.TrimSpace(envVar)
+			if envVal := os.Getenv(envVar); envVal != "" {
+				newVal := &StringSlice{}
+				for _, s := range strings.Split(envVal, ",") {
+					s = strings.TrimSpace(s)
+					newVal.Set(s)
+				}
+				f.Value = newVal
+				break
+			}
+		}
+	}
+
+	eachName(f.Name, func(name string) {
+		set.Var(f.Value, name, f.Usage)
+	})
+}
+
+func (f StringSliceFlag) getName() string {
+	return f.Name
+}
+
+func (f StringSliceFlag) isNotHidden() bool {
+	return !f.Hide
+}