Updates mitchellh/copystructure, mitchellh/mapstructure, and mitchellh/reflectwalk.

vendor/github.com/mitchellh/copystructure/copystructure.go

@@ -95,7 +95,9 @@ func (w *walker) Exit(l reflectwalk.Location) error {
 		if v.IsValid() {
 			s := w.cs[len(w.cs)-1]
 			sf := reflect.Indirect(s).FieldByName(f.Name)
-			sf.Set(v)
+			if sf.CanSet() {
+				sf.Set(v)
+			}
 		}
 	case reflectwalk.WalkLoc:
 		// Clear out the slices for GC
@@ -111,16 +113,12 @@ func (w *walker) Map(m reflect.Value) error {
 		return nil
 	}
 
-	// Get the type for the map
-	t := m.Type()
-	mapType := reflect.MapOf(t.Key(), t.Elem())
-
 	// Create the map. If the map itself is nil, then just make a nil map
 	var newMap reflect.Value
 	if m.IsNil() {
-		newMap = reflect.Indirect(reflect.New(mapType))
+		newMap = reflect.Indirect(reflect.New(m.Type()))
 	} else {
-		newMap = reflect.MakeMap(reflect.MapOf(t.Key(), t.Elem()))
+		newMap = reflect.MakeMap(m.Type())
 	}
 
 	w.cs = append(w.cs, newMap)
@@ -155,8 +153,10 @@ func (w *walker) Primitive(v reflect.Value) error {
 		return nil
 	}
 
+	// IsValid verifies the v is non-zero and CanInterface verifies
+	// that we're allowed to read this value (unexported fields).
 	var newV reflect.Value
-	if v.IsValid() {
+	if v.IsValid() && v.CanInterface() {
 		newV = reflect.New(v.Type())
 		reflect.Indirect(newV).Set(v)
 	}

vendor/github.com/mitchellh/mapstructure/.travis.yml

@@ -1,7 +0,0 @@
-language: go 
-
-go: 
-  - 1.4
-  
-script:
-  - go test 

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

@@ -72,7 +72,10 @@ func ComposeDecodeHookFunc(fs ...DecodeHookFunc) DecodeHookFunc {
 			}
 
 			// Modify the from kind to be correct with the new data
-			f = reflect.ValueOf(data).Type()
+			f = nil
+			if val := reflect.ValueOf(data); val.IsValid() {
+				f = val.Type()
+			}
 		}
 
 		return data, nil

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

@@ -8,6 +8,7 @@
 package mapstructure
 
 import (
+	"encoding/json"
 	"errors"
 	"fmt"
 	"reflect"
@@ -67,6 +68,7 @@ type DecoderConfig struct {
 	//     FALSE, false, False. Anything else is an error)
 	//   - empty array = empty map and vice versa
 	//   - negative numbers to overflowed uint values (base 10)
+	//   - slice of maps to a merged map
 	//
 	WeaklyTypedInput bool
 
@@ -245,6 +247,10 @@ func (d *Decoder) decode(name string, data interface{}, val reflect.Value) error
 // value to "data" of that type.
 func (d *Decoder) decodeBasic(name string, data interface{}, val reflect.Value) error {
 	dataVal := reflect.ValueOf(data)
+	if !dataVal.IsValid() {
+		dataVal = reflect.Zero(val.Type())
+	}
+
 	dataValType := dataVal.Type()
 	if !dataValType.AssignableTo(val.Type()) {
 		return fmt.Errorf(
@@ -301,6 +307,7 @@ func (d *Decoder) decodeString(name string, data interface{}, val reflect.Value)
 func (d *Decoder) decodeInt(name string, data interface{}, val reflect.Value) error {
 	dataVal := reflect.ValueOf(data)
 	dataKind := getKind(dataVal)
+	dataType := dataVal.Type()
 
 	switch {
 	case dataKind == reflect.Int:
@@ -322,6 +329,14 @@ func (d *Decoder) decodeInt(name string, data interface{}, val reflect.Value) er
 		} else {
 			return fmt.Errorf("cannot parse '%s' as int: %s", name, err)
 		}
+	case dataType.PkgPath() == "encoding/json" && dataType.Name() == "Number":
+		jn := data.(json.Number)
+		i, err := jn.Int64()
+		if err != nil {
+			return fmt.Errorf(
+				"error decoding json.Number into %s: %s", name, err)
+		}
+		val.SetInt(i)
 	default:
 		return fmt.Errorf(
 			"'%s' expected type '%s', got unconvertible type '%s'",
@@ -408,6 +423,7 @@ func (d *Decoder) decodeBool(name string, data interface{}, val reflect.Value) e
 func (d *Decoder) decodeFloat(name string, data interface{}, val reflect.Value) error {
 	dataVal := reflect.ValueOf(data)
 	dataKind := getKind(dataVal)
+	dataType := dataVal.Type()
 
 	switch {
 	case dataKind == reflect.Int:
@@ -429,6 +445,14 @@ func (d *Decoder) decodeFloat(name string, data interface{}, val reflect.Value)
 		} else {
 			return fmt.Errorf("cannot parse '%s' as float: %s", name, err)
 		}
+	case dataType.PkgPath() == "encoding/json" && dataType.Name() == "Number":
+		jn := data.(json.Number)
+		i, err := jn.Float64()
+		if err != nil {
+			return fmt.Errorf(
+				"error decoding json.Number into %s: %s", name, err)
+		}
+		val.SetFloat(i)
 	default:
 		return fmt.Errorf(
 			"'%s' expected type '%s', got unconvertible type '%s'",
@@ -456,15 +480,30 @@ func (d *Decoder) decodeMap(name string, data interface{}, val reflect.Value) er
 	// Check input type
 	dataVal := reflect.Indirect(reflect.ValueOf(data))
 	if dataVal.Kind() != reflect.Map {
-		// Accept empty array/slice instead of an empty map in weakly typed mode
-		if d.config.WeaklyTypedInput &&
-			(dataVal.Kind() == reflect.Slice || dataVal.Kind() == reflect.Array) &&
-			dataVal.Len() == 0 {
-			val.Set(valMap)
-			return nil
-		} else {
-			return fmt.Errorf("'%s' expected a map, got '%s'", name, dataVal.Kind())
+		// In weak mode, we accept a slice of maps as an input...
+		if d.config.WeaklyTypedInput {
+			switch dataVal.Kind() {
+			case reflect.Array, reflect.Slice:
+				// Special case for BC reasons (covered by tests)
+				if dataVal.Len() == 0 {
+					val.Set(valMap)
+					return nil
+				}
+
+				for i := 0; i < dataVal.Len(); i++ {
+					err := d.decode(
+						fmt.Sprintf("%s[%d]", name, i),
+						dataVal.Index(i).Interface(), val)
+					if err != nil {
+						return err
+					}
+				}
+
+				return nil
+			}
 		}
+
+		return fmt.Errorf("'%s' expected a map, got '%s'", name, dataVal.Kind())
 	}
 
 	// Accumulate errors
@@ -607,11 +646,12 @@ func (d *Decoder) decodeStruct(name string, data interface{}, val reflect.Value)
 		structs = structs[1:]
 
 		structType := structVal.Type()
+
 		for i := 0; i < structType.NumField(); i++ {
 			fieldType := structType.Field(i)
+			fieldKind := fieldType.Type.Kind()
 
 			if fieldType.Anonymous {
-				fieldKind := fieldType.Type.Kind()
 				if fieldKind != reflect.Struct {
 					errors = appendErrors(errors,
 						fmt.Errorf("%s: unsupported type: %s", fieldType.Name, fieldKind))
@@ -630,7 +670,12 @@ func (d *Decoder) decodeStruct(name string, data interface{}, val reflect.Value)
 			}
 
 			if squash {
-				structs = append(structs, val.FieldByName(fieldType.Name))
+				if fieldKind != reflect.Struct {
+					errors = appendErrors(errors,
+						fmt.Errorf("%s: unsupported type for squash: %s", fieldType.Name, fieldKind))
+				} else {
+					structs = append(structs, val.FieldByName(fieldType.Name))
+				}
 				continue
 			}
 

vendor/vendor.json

@@ -438,16 +438,22 @@
 			"revisionTime": "2016-03-23T17:07:00Z"
 		},
 		{
+			"checksumSHA1": "86nE93o1VIND0Doe8PuhCXnhUx0=",
 			"path": "github.com/mitchellh/copystructure",
-			"revision": "6fc66267e9da7d155a9d3bd489e00dad02666dc6"
+			"revision": "cdac8253d00f2ecf0a0b19fbff173a9a72de4f82",
+			"revisionTime": "2016-08-04T03:23:30Z"
 		},
 		{
+			"checksumSHA1": "LUrnGREfnifW4WDMaavmc9MlLI0=",
 			"path": "github.com/mitchellh/mapstructure",
-			"revision": "281073eb9eb092240d33ef253c404f1cca550309"
+			"revision": "ca63d7c062ee3c9f34db231e352b60012b4fd0c1",
+			"revisionTime": "2016-08-08T18:12:53Z"
 		},
 		{
+			"checksumSHA1": "mrqMlK6gqe//WsJSrJ1HgkPM0lM=",
 			"path": "github.com/mitchellh/reflectwalk",
-			"revision": "eecf4c70c626c7cfbb95c90195bc34d386c74ac6"
+			"revision": "eecf4c70c626c7cfbb95c90195bc34d386c74ac6",
+			"revisionTime": "2015-05-27T15:31:53Z"
 		},
 		{
 			"checksumSHA1": "3AoPMXlmVq2+iWMpsdJZkcUKHB8=",