| // Copyright Istio 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 ( |
| "bufio" |
| "fmt" |
| "strings" |
| ) |
| |
| import ( |
| "github.com/hashicorp/go-multierror" |
| ) |
| |
| type DeprecatedError struct { |
| msg string |
| } |
| |
| func NewDeprecatedError(format string, args ...interface{}) error { |
| return &DeprecatedError{fmt.Sprintf(format, args...)} |
| } |
| |
| func IsDeprecatedError(err error) bool { |
| _, ok := err.(*DeprecatedError) |
| return ok |
| } |
| |
| func IsOrContainsDeprecatedError(err error) bool { |
| if IsDeprecatedError(err) { |
| return true |
| } |
| |
| if m, ok := err.(*multierror.Error); ok { |
| for _, e := range m.Errors { |
| if IsDeprecatedError(e) { |
| return true |
| } |
| } |
| } |
| |
| return false |
| } |
| |
| func (de *DeprecatedError) Error() string { |
| return de.msg |
| } |
| |
| // FindDeprecatedMessagesInEnvoyLog looks for deprecated messages in the `logs` parameter. If found, it will return |
| // a DeprecatedError. Use `extraInfo` to pass additional info, like pod namespace/name, etc. |
| func FindDeprecatedMessagesInEnvoyLog(logs, extraInfo string) error { |
| scanner := bufio.NewScanner(strings.NewReader(logs)) |
| for scanner.Scan() { |
| line := scanner.Text() |
| if strings.Contains(strings.ToLower(line), "deprecated") { |
| if len(extraInfo) > 0 { |
| extraInfo = fmt.Sprintf(" (%s)", extraInfo) |
| } |
| return NewDeprecatedError("usage of deprecated stuff in Envoy%s: %s", extraInfo, line) |
| } |
| } |
| |
| return nil |
| } |