client/pkg/errors/errors.go

51 lines
1.6 KiB
Go

// Copyright © 2019 The Knative Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package errors
import (
"fmt"
"strings"
"unicode"
"unicode/utf8"
)
func NewInvalidCRD(apiGroup string) *KNError {
parts := strings.Split(apiGroup, ".")
name := parts[0]
msg := fmt.Sprintf("no or newer Knative %s API found on the backend, please verify the installation or "+
"update the 'kn' client", firstCharToUpper(name))
return NewKNError(msg)
}
func newNoRouteToHost(errString string) *KNError {
parts := strings.SplitAfter(errString, "dial tcp")
if len(parts) == 2 {
return NewKNError(fmt.Sprintf("error connecting to the cluster, please verify connection at: %s", strings.Trim(parts[1], " ")))
}
return NewKNError(fmt.Sprintf("error connecting to the cluster: %s", errString))
}
func newNoKubeConfig(errString string) *KNError {
return NewKNError("no kubeconfig has been provided, please use a valid configuration to connect to the cluster")
}
func firstCharToUpper(s string) string {
if len(s) == 0 {
return s
}
r, n := utf8.DecodeRuneInString(s)
return string(unicode.ToUpper(r)) + s[n:]
}