mirror of https://github.com/linkerd/linkerd2.git
48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
package k8s
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import (
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"fmt"
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"regexp"
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"strconv"
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"strings"
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)
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var revisionSeparator = regexp.MustCompile("[^0-9.]")
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func getK8sVersion(versionString string) ([3]int, error) {
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var version [3]int
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justTheVersionString := strings.TrimPrefix(versionString, "v")
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justTheMajorMinorRevisionNumbers := revisionSeparator.Split(justTheVersionString, -1)[0]
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split := strings.Split(justTheMajorMinorRevisionNumbers, ".")
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if len(split) < 3 {
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return version, fmt.Errorf("unknown version string format [%s]", versionString)
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}
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for i, segment := range split {
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v, err := strconv.Atoi(strings.TrimSpace(segment))
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if err != nil {
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return version, fmt.Errorf("unknown version string format [%s]", versionString)
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}
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version[i] = v
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}
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return version, nil
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}
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func isCompatibleVersion(minimalRequirementVersion [3]int, actualVersion [3]int) bool {
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if minimalRequirementVersion[0] < actualVersion[0] {
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return true
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}
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if (minimalRequirementVersion[0] == actualVersion[0]) && minimalRequirementVersion[1] < actualVersion[1] {
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return true
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}
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if (minimalRequirementVersion[0] == actualVersion[0]) && (minimalRequirementVersion[1] == actualVersion[1]) && (minimalRequirementVersion[2] <= actualVersion[2]) {
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return true
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}
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return false
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}
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