56 lines
1.3 KiB
Go
56 lines
1.3 KiB
Go
// +build darwin
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// Package kernel provides helper function to get, parse and compare kernel
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// versions for different platforms.
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package kernel
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import (
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"fmt"
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"os/exec"
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"strings"
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"github.com/mattn/go-shellwords"
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)
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// GetKernelVersion gets the current kernel version.
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func GetKernelVersion() (*VersionInfo, error) {
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release, err := getRelease()
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if err != nil {
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return nil, err
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}
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return ParseRelease(release)
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}
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// getRelease uses `system_profiler SPSoftwareDataType` to get OSX kernel version
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func getRelease() (string, error) {
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cmd := exec.Command("system_profiler", "SPSoftwareDataType")
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osName, err := cmd.Output()
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if err != nil {
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return "", err
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}
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var release string
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data := strings.Split(string(osName), "\n")
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for _, line := range data {
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if strings.Contains(line, "Kernel Version") {
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// It has the format like ' Kernel Version: Darwin 14.5.0'
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content := strings.SplitN(line, ":", 2)
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if len(content) != 2 {
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return "", fmt.Errorf("Kernel Version is invalid")
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}
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prettyNames, err := shellwords.Parse(content[1])
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if err != nil {
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return "", fmt.Errorf("Kernel Version is invalid: %s", err.Error())
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}
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if len(prettyNames) != 2 {
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return "", fmt.Errorf("Kernel Version needs to be 'Darwin x.x.x' ")
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}
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release = prettyNames[1]
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}
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}
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return release, nil
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}
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