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58 lines
1.5 KiB
58 lines
1.5 KiB
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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 version // import "k8s.io/helm/pkg/version"
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import (
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"fmt"
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"github.com/Masterminds/semver"
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)
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// IsCompatible tests if a client and server version are compatible.
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func IsCompatible(client, server string) bool {
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cv, err := semver.NewVersion(client)
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if err != nil {
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return false
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}
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sv, err := semver.NewVersion(server)
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if err != nil {
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return false
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}
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constraint := fmt.Sprintf("^%d.%d.x", cv.Major(), cv.Minor())
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if cv.Prerelease() != "" || sv.Prerelease() != "" {
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constraint = cv.String()
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}
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return IsCompatibleRange(constraint, server)
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}
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// IsCompatibleRange compares a version to a constraint.
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// It returns true if the version matches the constraint, and false in all other cases.
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func IsCompatibleRange(constraint, ver string) bool {
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sv, err := semver.NewVersion(ver)
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if err != nil {
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return false
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}
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c, err := semver.NewConstraint(constraint)
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if err != nil {
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return false
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}
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return c.Check(sv)
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}
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