github.com/theblckswan/cni@v0.8.1/pkg/version/reconcile.go (about) 1 // Copyright 2016 CNI authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package version 16 17 import "fmt" 18 19 type ErrorIncompatible struct { 20 Config string 21 Supported []string 22 } 23 24 func (e *ErrorIncompatible) Details() string { 25 return fmt.Sprintf("config is %q, plugin supports %q", e.Config, e.Supported) 26 } 27 28 func (e *ErrorIncompatible) Error() string { 29 return fmt.Sprintf("incompatible CNI versions: %s", e.Details()) 30 } 31 32 type Reconciler struct{} 33 34 func (r *Reconciler) Check(configVersion string, pluginInfo PluginInfo) *ErrorIncompatible { 35 return r.CheckRaw(configVersion, pluginInfo.SupportedVersions()) 36 } 37 38 func (*Reconciler) CheckRaw(configVersion string, supportedVersions []string) *ErrorIncompatible { 39 for _, supportedVersion := range supportedVersions { 40 if configVersion == supportedVersion { 41 return nil 42 } 43 } 44 45 return &ErrorIncompatible{ 46 Config: configVersion, 47 Supported: supportedVersions, 48 } 49 }