/
version.go
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/
version.go
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// Copyright (c) 2018 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 version
import (
"fmt"
"strings"
"github.com/Masterminds/semver"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
)
var (
// ConstraintK8sGreaterEqual118 is a version constraint for versions >= 1.18.
ConstraintK8sGreaterEqual118 *semver.Constraints
// ConstraintK8sEqual118 is a version constraint for versions == 1.18.
ConstraintK8sEqual118 *semver.Constraints
// ConstraintK8sGreaterEqual119 is a version constraint for versions >= 1.19.
ConstraintK8sGreaterEqual119 *semver.Constraints
// ConstraintK8sLess119 is a version constraint for versions < 1.19.
ConstraintK8sLess119 *semver.Constraints
// ConstraintK8sLess120 is a version constraint for versions < 1.20.
ConstraintK8sLess120 *semver.Constraints
// ConstraintK8sEqual119 is a version constraint for versions == 1.19.
ConstraintK8sEqual119 *semver.Constraints
// ConstraintK8sGreaterEqual120 is a version constraint for versions >= 1.20.
ConstraintK8sGreaterEqual120 *semver.Constraints
// ConstraintK8sEqual120 is a version constraint for versions == 1.20.
ConstraintK8sEqual120 *semver.Constraints
// ConstraintK8sLessEqual121 is a version constraint for versions <= 1.21.
ConstraintK8sLessEqual121 *semver.Constraints
// ConstraintK8sEqual121 is a version constraint for versions == 1.21.
ConstraintK8sEqual121 *semver.Constraints
// ConstraintK8sGreaterEqual121 is a version constraint for versions >= 1.21.
ConstraintK8sGreaterEqual121 *semver.Constraints
// ConstraintK8sLessEqual122 is a version constraint for versions <= 1.22.
ConstraintK8sLessEqual122 *semver.Constraints
// ConstraintK8sEqual122 is a version constraint for versions == 1.22.
ConstraintK8sEqual122 *semver.Constraints
// ConstraintK8sGreaterEqual122 is a version constraint for versions >= 1.22.
ConstraintK8sGreaterEqual122 *semver.Constraints
// ConstraintK8sEqual123 is a version constraint for versions == 1.23.
ConstraintK8sEqual123 *semver.Constraints
// ConstraintK8sGreaterEqual123 is a version constraint for versions >= 1.23.
ConstraintK8sGreaterEqual123 *semver.Constraints
)
func init() {
var err error
ConstraintK8sGreaterEqual118, err = semver.NewConstraint(">= 1.18")
utilruntime.Must(err)
ConstraintK8sEqual118, err = semver.NewConstraint("1.18.x")
utilruntime.Must(err)
ConstraintK8sGreaterEqual119, err = semver.NewConstraint(">= 1.19")
utilruntime.Must(err)
ConstraintK8sEqual119, err = semver.NewConstraint("1.19.x")
utilruntime.Must(err)
ConstraintK8sLess119, err = semver.NewConstraint("< 1.19")
utilruntime.Must(err)
ConstraintK8sLess120, err = semver.NewConstraint("< 1.20")
utilruntime.Must(err)
ConstraintK8sGreaterEqual120, err = semver.NewConstraint(">= 1.20")
utilruntime.Must(err)
ConstraintK8sEqual120, err = semver.NewConstraint("1.20.x")
utilruntime.Must(err)
ConstraintK8sLessEqual121, err = semver.NewConstraint("<= 1.21.x")
utilruntime.Must(err)
ConstraintK8sEqual121, err = semver.NewConstraint("1.21.x")
utilruntime.Must(err)
ConstraintK8sGreaterEqual121, err = semver.NewConstraint(">= 1.21")
utilruntime.Must(err)
ConstraintK8sLessEqual122, err = semver.NewConstraint("<= 1.22.x")
utilruntime.Must(err)
ConstraintK8sEqual122, err = semver.NewConstraint("1.22.x")
utilruntime.Must(err)
ConstraintK8sGreaterEqual122, err = semver.NewConstraint(">= 1.22")
utilruntime.Must(err)
ConstraintK8sEqual123, err = semver.NewConstraint("1.23.x")
utilruntime.Must(err)
ConstraintK8sGreaterEqual123, err = semver.NewConstraint(">= 1.23")
utilruntime.Must(err)
}
// CompareVersions returns true if the constraint <version1> compared by <operator> to <version2>
// returns true, and false otherwise.
// The comparison is based on semantic versions, i.e. <version1> and <version2> will be converted
// if needed.
func CompareVersions(version1, operator, version2 string) (bool, error) {
var (
v1 = normalizeVersion(version1)
v2 = normalizeVersion(version2)
)
return CheckVersionMeetsConstraint(v1, fmt.Sprintf("%s %s", operator, v2))
}
func normalizeVersion(version string) string {
v := strings.Replace(version, "v", "", -1)
idx := strings.IndexAny(v, "-+")
if idx != -1 {
v = v[:idx]
}
return v
}
// CheckVersionMeetsConstraint returns true if the <version> meets the <constraint>.
func CheckVersionMeetsConstraint(version, constraint string) (bool, error) {
c, err := semver.NewConstraint(constraint)
if err != nil {
return false, err
}
v, err := semver.NewVersion(normalizeVersion(version))
if err != nil {
return false, err
}
return c.Check(v), nil
}