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On macOS 27, `pmset -g` does not print SleepDisabled until disablesleep has been written explicitly. PMSet.read() threw in that state, so keep-awake could not be enabled (issue TurboKach#1). read() now uses the IOPMrootDomain SleepDisabled property when the pmset output has no usable line. A read that fails both ways still throws, so a failed read never counts as sleep enabled.
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Fixes #1
On macOS 27,
pmset -gdoes not printSleepDisableduntildisablesleephas been written explicitly.PMSet.read()threw in that state, so keep-awake could not be enabled.read()now falls back to theIOPMrootDomainSleepDisabledproperty when the pmset output has no usable line. A read that fails both ways still throws, so a failed read never counts as sleep enabled.Tests:
swift testpasses (78 tests), including three newSystemAdaptersTestscovering the fallback. Verified on macOS 27.0.1:pmset -gomits the line, and the IORegistry value matchesioreg.