| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 version |
| |
| import ( |
| "fmt" |
| "strings" |
| ) |
| |
| import ( |
| "github.com/Masterminds/semver/v3" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-kubernetes/pkg/core" |
| ) |
| |
| var log = core.Log.WithName("version").WithName("compatibility") |
| |
| var PreviewVersionPrefix = "preview" |
| |
| func IsPreviewVersion(version string) bool { |
| return strings.Contains(version, PreviewVersionPrefix) |
| } |
| |
| // DeploymentVersionCompatible returns true if the given component version |
| // is compatible with the installed version of dubbo CP. |
| // For all binaries which share a common version (dubbo DP, CP, Zone CP...), we |
| // support backwards compatibility of at most two prior minor versions. |
| func DeploymentVersionCompatible(dubboVersionStr, componentVersionStr string) bool { |
| if IsPreviewVersion(dubboVersionStr) || IsPreviewVersion(componentVersionStr) { |
| return true |
| } |
| |
| dubboVersion, err := semver.NewVersion(dubboVersionStr) |
| if err != nil { |
| // Assume some kind of dev version |
| log.Info("cannot parse semantic version", "version", dubboVersionStr) |
| return true |
| } |
| |
| componentVersion, err := semver.NewVersion(componentVersionStr) |
| if err != nil { |
| // Assume some kind of dev version |
| log.Info("cannot parse semantic version", "version", componentVersionStr) |
| return true |
| } |
| |
| minMinor := int64(dubboVersion.Minor()) - 2 |
| if minMinor < 0 { |
| minMinor = 0 |
| } |
| |
| maxMinor := dubboVersion.Minor() + 2 |
| |
| constraint, err := semver.NewConstraint( |
| fmt.Sprintf(">= %d.%d, <= %d.%d", dubboVersion.Major(), minMinor, dubboVersion.Major(), maxMinor), |
| ) |
| if err != nil { |
| // Programmer error |
| panic(err) |
| } |
| |
| return constraint.Check(componentVersion) |
| } |