mirror of https://github.com/kubernetes/kops.git
150 lines
2.5 KiB
Go
150 lines
2.5 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package fi
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import (
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"encoding/json"
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"fmt"
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"reflect"
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)
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func StringValue(s *string) string {
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if s == nil {
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return ""
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}
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return *s
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}
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func IsNilOrEmpty(s *string) bool {
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if s == nil {
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return true
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}
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return *s == ""
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}
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func String(s string) *string {
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return &s
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}
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func Bool(v bool) *bool {
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return &v
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}
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func BoolValue(v *bool) bool {
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if v == nil {
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return false
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}
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return *v
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}
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func Int(v int) *int {
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return &v
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}
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func IntValue(v *int) int {
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if v == nil {
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return 0
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}
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return *v
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}
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func Int64(v int64) *int64 {
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return &v
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}
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func Int64Value(v *int64) int64 {
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if v == nil {
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return 0
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}
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return *v
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}
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func Uint64Value(v *uint64) uint64 {
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if v == nil {
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return 0
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}
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return *v
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}
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func DebugPrint(o interface{}) string {
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if o == nil {
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return "<nil>"
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}
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if rh, ok := o.(*ResourceHolder); ok {
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if rh == nil {
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// Avoid go nil vs interface problems
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return "<nil>"
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}
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if rh.Resource == nil {
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return fmt.Sprintf("unknown resource %q", rh.Name)
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}
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}
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if resource, ok := o.(Resource); ok {
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if resource == nil {
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// Avoid go nil vs interface problems
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return "<nil>"
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}
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s, err := ResourceAsString(resource)
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if err != nil {
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return fmt.Sprintf("error converting resource to string: %v", err)
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}
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if len(s) >= 256 {
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s = s[:256] + "... (truncated)"
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}
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return s
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}
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v := reflect.ValueOf(o)
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if v.Kind() == reflect.Ptr {
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if v.IsNil() {
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return "<nil>"
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}
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v = v.Elem()
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}
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if !v.IsValid() {
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return "<?>"
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}
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o = v.Interface()
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if stringer, ok := o.(fmt.Stringer); ok {
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if stringer == nil {
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// Avoid go nil vs interface problems
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return "<nil>"
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}
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return stringer.String()
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}
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return fmt.Sprint(o)
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}
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func DebugAsJsonString(v interface{}) string {
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data, err := json.Marshal(v)
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if err != nil {
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return fmt.Sprintf("error marshalling: %v", err)
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}
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return string(data)
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}
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func DebugAsJsonStringIndent(v interface{}) string {
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data, err := json.MarshalIndent(v, "", " ")
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if err != nil {
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return fmt.Sprintf("error marshalling: %v", err)
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}
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return string(data)
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}
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