parses default time.Duration via time.ParseDuration (cherry-pick)

Author: russmatney

README.md

@@ -21,6 +21,7 @@ A basic example:
 import (
     "fmt"
     "github.com/mcuadros/go-defaults"
+    "time"
 )
 
 type ExampleBasic struct {

defaults.go

@@ -14,6 +14,7 @@ import (
 //         Foo bool   `default:"true"`
 //         Bar string `default:"33"`
 //         Qux int8
+//         Dur time.Duration `default:"2m3s"`
 //     }
 //
 //      foo := &ExampleBasic{}
@@ -47,7 +48,15 @@ func newDefaultFiller() *Filler {
 	funcs[reflect.Int8] = funcs[reflect.Int]
 	funcs[reflect.Int16] = funcs[reflect.Int]
 	funcs[reflect.Int32] = funcs[reflect.Int]
-	funcs[reflect.Int64] = funcs[reflect.Int]
+	funcs[reflect.Int64] = func(field *FieldData) {
+		if field.Field.Type == reflect.TypeOf(time.Second) {
+			value, _ := time.ParseDuration(field.TagValue)
+			field.Value.Set(reflect.ValueOf(value))
+		} else {
+			value, _ := strconv.ParseInt(field.TagValue, 10, 64)
+			field.Value.SetInt(value)
+		}
+	}
 
 	funcs[reflect.Float32] = func(field *FieldData) {
 		value, _ := strconv.ParseFloat(field.TagValue, 64)

defaults_test.go

@@ -45,6 +45,7 @@ type ExampleBasic struct {
 	}
 	Duration time.Duration `default:"1s"`
 	Children []Child
+	Second   time.Duration `default:"1s"`
 }
 
 func (s *DefaultsSuite) TestSetDefaultsBasic(c *C) {
@@ -84,6 +85,7 @@ func (s *DefaultsSuite) assertTypes(c *C, foo *ExampleBasic) {
 	c.Assert(foo.Struct.Bool, Equals, true)
 	c.Assert(foo.Duration, Equals, time.Second)
 	c.Assert(foo.Children, IsNil)
+	c.Assert(foo.Second, Equals, time.Second)
 }
 
 func (s *DefaultsSuite) TestSetDefaultsWithValues(c *C) {