38 lines
885 B
Go
38 lines
885 B
Go
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// +build darwin
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package machineid
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import (
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"bytes"
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"fmt"
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"os"
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"strings"
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)
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// machineID returns the uuid returned by `ioreg -rd1 -c IOPlatformExpertDevice`.
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// If there is an error running the commad an empty string is returned.
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func machineID() (string, error) {
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buf := &bytes.Buffer{}
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err := run(buf, os.Stderr, "ioreg", "-rd1", "-c", "IOPlatformExpertDevice")
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if err != nil {
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return "", err
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}
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id, err := extractID(buf.String())
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if err != nil {
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return "", err
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}
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return trim(id), nil
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}
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func extractID(lines string) (string, error) {
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for _, line := range strings.Split(lines, "\n") {
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if strings.Contains(line, "IOPlatformUUID") {
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parts := strings.SplitAfter(line, `" = "`)
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if len(parts) == 2 {
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return strings.TrimRight(parts[1], `"`), nil
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}
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}
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}
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return "", fmt.Errorf("Failed to extract 'IOPlatformUUID' value from `ioreg` output.\n%s", lines)
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}
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