Updated vendoring

Updated vendoring for getting changes from docker/cli
for build key in v3
(since docker/cli#481 is merged now)

vendor/github.com/mitchellh/mapstructure/decode_hooks.go

@@ -38,6 +38,12 @@ func DecodeHookExec(
 	raw DecodeHookFunc,
 	from reflect.Type, to reflect.Type,
 	data interface{}) (interface{}, error) {
+	// Build our arguments that reflect expects
+	argVals := make([]reflect.Value, 3)
+	argVals[0] = reflect.ValueOf(from)
+	argVals[1] = reflect.ValueOf(to)
+	argVals[2] = reflect.ValueOf(data)
+
 	switch f := typedDecodeHook(raw).(type) {
 	case DecodeHookFuncType:
 		return f(from, to, data)
@@ -115,11 +121,6 @@ func StringToTimeDurationHookFunc() DecodeHookFunc {
 	}
 }
 
-// WeaklyTypedHook is a DecodeHookFunc which adds support for weak typing to
-// the decoder.
-//
-// Note that this is significantly different from the WeaklyTypedInput option
-// of the DecoderConfig.
 func WeaklyTypedHook(
 	f reflect.Kind,
 	t reflect.Kind,
@@ -131,8 +132,9 @@ func WeaklyTypedHook(
 		case reflect.Bool:
 			if dataVal.Bool() {
 				return "1", nil
+			} else {
+				return "0", nil
 			}
-			return "0", nil
 		case reflect.Float32:
 			return strconv.FormatFloat(dataVal.Float(), 'f', -1, 64), nil
 		case reflect.Int:

vendor/github.com/mitchellh/mapstructure/mapstructure.go

@@ -1,5 +1,5 @@
-// Package mapstructure exposes functionality to convert an arbitrary
-// map[string]interface{} into a native Go structure.
+// The mapstructure package exposes functionality to convert an
+// arbitrary map[string]interface{} into a native Go structure.
 //
 // The Go structure can be arbitrarily complex, containing slices,
 // other structs, etc. and the decoder will properly decode nested
@@ -32,12 +32,7 @@ import (
 // both.
 type DecodeHookFunc interface{}
 
-// DecodeHookFuncType is a DecodeHookFunc which has complete information about
-// the source and target types.
 type DecodeHookFuncType func(reflect.Type, reflect.Type, interface{}) (interface{}, error)
-
-// DecodeHookFuncKind is a DecodeHookFunc which knows only the Kinds of the
-// source and target types.
 type DecodeHookFuncKind func(reflect.Kind, reflect.Kind, interface{}) (interface{}, error)
 
 // DecoderConfig is the configuration that is used to create a new decoder
@@ -74,9 +69,6 @@ type DecoderConfig struct {
 	//   - empty array = empty map and vice versa
 	//   - negative numbers to overflowed uint values (base 10)
 	//   - slice of maps to a merged map
-	//   - single values are converted to slices if required. Each
-	//     element is weakly decoded. For example: "4" can become []int{4}
-	//     if the target type is an int slice.
 	//
 	WeaklyTypedInput bool
 
@@ -441,7 +433,7 @@ func (d *Decoder) decodeFloat(name string, data interface{}, val reflect.Value)
 	case dataKind == reflect.Uint:
 		val.SetFloat(float64(dataVal.Uint()))
 	case dataKind == reflect.Float32:
-		val.SetFloat(dataVal.Float())
+		val.SetFloat(float64(dataVal.Float()))
 	case dataKind == reflect.Bool && d.config.WeaklyTypedInput:
 		if dataVal.Bool() {
 			val.SetFloat(1)
@@ -592,28 +584,17 @@ func (d *Decoder) decodeSlice(name string, data interface{}, val reflect.Value)
 
 	valSlice := val
 	if valSlice.IsNil() || d.config.ZeroFields {
+
 		// Check input type
 		if dataValKind != reflect.Array && dataValKind != reflect.Slice {
-			if d.config.WeaklyTypedInput {
-				switch {
-				// Empty maps turn into empty slices
-				case dataValKind == reflect.Map:
-					if dataVal.Len() == 0 {
-						val.Set(reflect.MakeSlice(sliceType, 0, 0))
-						return nil
-					}
-
-				// All other types we try to convert to the slice type
-				// and "lift" it into it. i.e. a string becomes a string slice.
-				default:
-					// Just re-try this function with data as a slice.
-					return d.decodeSlice(name, []interface{}{data}, val)
-				}
+			// Accept empty map instead of array/slice in weakly typed mode
+			if d.config.WeaklyTypedInput && dataVal.Kind() == reflect.Map && dataVal.Len() == 0 {
+				val.Set(reflect.MakeSlice(sliceType, 0, 0))
+				return nil
+			} else {
+				return fmt.Errorf(
+					"'%s': source data must be an array or slice, got %s", name, dataValKind)
 			}
-
-			return fmt.Errorf(
-				"'%s': source data must be an array or slice, got %s", name, dataValKind)
-
 		}
 
 		// Make a new slice to hold our result, same size as the original data.