Feature - duration string var type

service.go

@@ -4,6 +4,7 @@ import (
 	"net/url"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/antonholmquist/jason"
 )
@@ -86,6 +87,15 @@ func (s *Service) Update(wg *sync.WaitGroup) {
 		}
 		v := guessValue(value)
 		if v != nil {
+			// Special case: if we have a duration string, guessValue
+			// will return a string.  We should try to parse it and
+			// push the resulting int64 instead
+			if name.Kind() == KindDurationString {
+				if d, err := time.ParseDuration(v.(string)); err == nil {
+					stack.Push(int64(d))
+					continue
+				}
+			}
 			stack.Push(v)
 		}
 	}

ui_multi.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"time"
 
-	"gopkg.in/gizak/termui.v1"
+	termui "gopkg.in/gizak/termui.v1"
 )
 
 // TermUI is a termUI implementation of UI interface.
@@ -225,6 +225,8 @@ func colorByKind(kind VarKind) termui.Attribute {
 		return termui.ColorRed | termui.AttrBold
 	case KindDuration:
 		return termui.ColorYellow | termui.AttrBold
+	case KindDurationString:
+		return termui.ColorYellow | termui.AttrBold
 	case KindString:
 		return termui.ColorGreen | termui.AttrBold
 	default:

var.go

@@ -27,6 +27,7 @@ const (
 	KindMemory
 	KindDuration
 	KindString
+	KindDurationString
 )
 
 // ToSlice converts "dot-separated" notation into the "slice of strings".
@@ -76,6 +77,8 @@ func (v VarName) Kind() VarKind {
 		return KindDuration
 	case "str":
 		return KindString
+	case "durationstr":
+		return KindDurationString
 	}
 	return KindDefault
 }
@@ -84,15 +87,15 @@ func (v VarName) Kind() VarKind {
 func Format(v VarValue, kind VarKind) string {
 	switch kind {
 	case KindMemory:
-		if _, ok := v.(int64); !ok {
-			break
+		if i, ok := v.(int64); ok {
+			return fmt.Sprintf("%s", byten.Size(i))
 		}
-		return fmt.Sprintf("%s", byten.Size(v.(int64)))
+	case KindDurationString:
+		fallthrough
 	case KindDuration:
-		if _, ok := v.(int64); !ok {
-			break
+		if i, ok := v.(int64); ok {
+			return fmt.Sprintf("%s", roundDuration(time.Duration(i)))
 		}
-		return fmt.Sprintf("%s", roundDuration(time.Duration(v.(int64))))
 	}
 
 	if f, ok := v.(float64); ok {