1 files changed, 221 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/github.com/creasty/defaults@v1.6.0/defaults.go b/dependencies/pkg/mod/github.com/creasty/defaults@v1.6.0/defaults.go
new file mode 100644
index 0000000..3bb2c22
--- /dev/null
+++ b/dependencies/pkg/mod/github.com/creasty/defaults@v1.6.0/defaults.go
@@ -0,0 +1,221 @@
+package defaults
+
+import (
+	"encoding/json"
+	"errors"
+	"reflect"
+	"strconv"
+	"time"
+)
+
+var (
+	errInvalidType = errors.New("not a struct pointer")
+)
+
+const (
+	fieldName = "default"
+)
+
+// Set initializes members in a struct referenced by a pointer.
+// Maps and slices are initialized by `make` and other primitive types are set with default values.
+// `ptr` should be a struct pointer
+func Set(ptr interface{}) error {
+	if reflect.TypeOf(ptr).Kind() != reflect.Ptr {
+		return errInvalidType
+	}
+
+	v := reflect.ValueOf(ptr).Elem()
+	t := v.Type()
+
+	if t.Kind() != reflect.Struct {
+		return errInvalidType
+	}
+
+	for i := 0; i < t.NumField(); i++ {
+		if defaultVal := t.Field(i).Tag.Get(fieldName); defaultVal != "-" {
+			if err := setField(v.Field(i), defaultVal); err != nil {
+				return err
+			}
+		}
+	}
+	callSetter(ptr)
+	return nil
+}
+
+// MustSet function is a wrapper of Set function
+// It will call Set and panic if err not equals nil.
+func MustSet(ptr interface{}) {
+	if err := Set(ptr); err != nil {
+		panic(err)
+	}
+}
+
+func setField(field reflect.Value, defaultVal string) error {
+	if !field.CanSet() {
+		return nil
+	}
+
+	if !shouldInitializeField(field, defaultVal) {
+		return nil
+	}
+
+	isInitial := isInitialValue(field)
+	if isInitial {
+		switch field.Kind() {
+		case reflect.Bool:
+			if val, err := strconv.ParseBool(defaultVal); err == nil {
+				field.Set(reflect.ValueOf(val).Convert(field.Type()))
+			}
+		case reflect.Int:
+			if val, err := strconv.ParseInt(defaultVal, 0, strconv.IntSize); err == nil {
+				field.Set(reflect.ValueOf(int(val)).Convert(field.Type()))
+			}
+		case reflect.Int8:
+			if val, err := strconv.ParseInt(defaultVal, 0, 8); err == nil {
+				field.Set(reflect.ValueOf(int8(val)).Convert(field.Type()))
+			}
+		case reflect.Int16:
+			if val, err := strconv.ParseInt(defaultVal, 0, 16); err == nil {
+				field.Set(reflect.ValueOf(int16(val)).Convert(field.Type()))
+			}
+		case reflect.Int32:
+			if val, err := strconv.ParseInt(defaultVal, 0, 32); err == nil {
+				field.Set(reflect.ValueOf(int32(val)).Convert(field.Type()))
+			}
+		case reflect.Int64:
+			if val, err := time.ParseDuration(defaultVal); err == nil {
+				field.Set(reflect.ValueOf(val).Convert(field.Type()))
+			} else if val, err := strconv.ParseInt(defaultVal, 0, 64); err == nil {
+				field.Set(reflect.ValueOf(val).Convert(field.Type()))
+			}
+		case reflect.Uint:
+			if val, err := strconv.ParseUint(defaultVal, 0, strconv.IntSize); err == nil {
+				field.Set(reflect.ValueOf(uint(val)).Convert(field.Type()))
+			}
+		case reflect.Uint8:
+			if val, err := strconv.ParseUint(defaultVal, 0, 8); err == nil {
+				field.Set(reflect.ValueOf(uint8(val)).Convert(field.Type()))
+			}
+		case reflect.Uint16:
+			if val, err := strconv.ParseUint(defaultVal, 0, 16); err == nil {
+				field.Set(reflect.ValueOf(uint16(val)).Convert(field.Type()))
+			}
+		case reflect.Uint32:
+			if val, err := strconv.ParseUint(defaultVal, 0, 32); err == nil {
+				field.Set(reflect.ValueOf(uint32(val)).Convert(field.Type()))
+			}
+		case reflect.Uint64:
+			if val, err := strconv.ParseUint(defaultVal, 0, 64); err == nil {
+				field.Set(reflect.ValueOf(val).Convert(field.Type()))
+			}
+		case reflect.Uintptr:
+			if val, err := strconv.ParseUint(defaultVal, 0, strconv.IntSize); err == nil {
+				field.Set(reflect.ValueOf(uintptr(val)).Convert(field.Type()))
+			}
+		case reflect.Float32:
+			if val, err := strconv.ParseFloat(defaultVal, 32); err == nil {
+				field.Set(reflect.ValueOf(float32(val)).Convert(field.Type()))
+			}
+		case reflect.Float64:
+			if val, err := strconv.ParseFloat(defaultVal, 64); err == nil {
+				field.Set(reflect.ValueOf(val).Convert(field.Type()))
+			}
+		case reflect.String:
+			field.Set(reflect.ValueOf(defaultVal).Convert(field.Type()))
+
+		case reflect.Slice:
+			ref := reflect.New(field.Type())
+			ref.Elem().Set(reflect.MakeSlice(field.Type(), 0, 0))
+			if defaultVal != "" && defaultVal != "[]" {
+				if err := json.Unmarshal([]byte(defaultVal), ref.Interface()); err != nil {
+					return err
+				}
+			}
+			field.Set(ref.Elem().Convert(field.Type()))
+		case reflect.Map:
+			ref := reflect.New(field.Type())
+			ref.Elem().Set(reflect.MakeMap(field.Type()))
+			if defaultVal != "" && defaultVal != "{}" {
+				if err := json.Unmarshal([]byte(defaultVal), ref.Interface()); err != nil {
+					return err
+				}
+			}
+			field.Set(ref.Elem().Convert(field.Type()))
+		case reflect.Struct:
+			if defaultVal != "" && defaultVal != "{}" {
+				if err := json.Unmarshal([]byte(defaultVal), field.Addr().Interface()); err != nil {
+					return err
+				}
+			}
+		case reflect.Ptr:
+			field.Set(reflect.New(field.Type().Elem()))
+		}
+	}
+
+	switch field.Kind() {
+	case reflect.Ptr:
+		if isInitial || field.Elem().Kind() == reflect.Struct {
+			setField(field.Elem(), defaultVal)
+			callSetter(field.Interface())
+		}
+	case reflect.Struct:
+		if err := Set(field.Addr().Interface()); err != nil {
+			return err
+		}
+	case reflect.Slice:
+		for j := 0; j < field.Len(); j++ {
+			if err := setField(field.Index(j), defaultVal); err != nil {
+				return err
+			}
+		}
+	case reflect.Map:
+		for _, e := range field.MapKeys() {
+			var v = field.MapIndex(e)
+
+			switch v.Kind() {
+			case reflect.Ptr:
+				switch v.Elem().Kind() {
+				case reflect.Struct, reflect.Slice, reflect.Map:
+					if err := setField(v.Elem(), ""); err != nil {
+						return err
+					}
+				}
+			case reflect.Struct, reflect.Slice, reflect.Map:
+				ref := reflect.New(v.Type())
+				ref.Elem().Set(v)
+				if err := setField(ref.Elem(), ""); err != nil {
+					return err
+				}
+				field.SetMapIndex(e, ref.Elem().Convert(v.Type()))
+			}
+		}
+	}
+
+	return nil
+}
+
+func isInitialValue(field reflect.Value) bool {
+	return reflect.DeepEqual(reflect.Zero(field.Type()).Interface(), field.Interface())
+}
+
+func shouldInitializeField(field reflect.Value, tag string) bool {
+	switch field.Kind() {
+	case reflect.Struct:
+		return true
+	case reflect.Ptr:
+		if !field.IsNil() && field.Elem().Kind() == reflect.Struct {
+			return true
+		}
+	case reflect.Slice:
+		return field.Len() > 0 || tag != ""
+	case reflect.Map:
+		return field.Len() > 0 || tag != ""
+	}
+
+	return tag != ""
+}
+
+// CanUpdate returns true when the given value is an initial value of its type
+func CanUpdate(v interface{}) bool {
+	return isInitialValue(reflect.ValueOf(v))
+}