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Capture power button press on MacOs High Sierra?

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Old 10-12-2017
Capture power button press on MacOs High Sierra?
Hello everyone!

I'm developing a MacOs Application in python and I'm having some issues trying to find information related to the power button pressed event. I know that in Ubuntu 14.04 you can find information about it on the acpi folders, but I realized that here in Mac that process is supposedly managed by powerd, I was looking thru the dmesg and console logs looking for something that changes when a restart is done automatically or if the computer couldn't restart itself and had to be powered on by the button.

Let me explain a little more.

In the application, I have a config file where I keep record of how many restarts have been done on the Mac by another application developed by Apple called RestartX. When it hits 10 restarts it will stop with an automation script on Sikuli. The thing is that when the test fails, the computer MUST be turned on by the user, and the RestartX app doesn't record if the test fails as it registers that operation as a Restart (which adds 1 to the app restart counter) and not as a PowerOn event.

If someone with more programming experience could tell me where to catch this kind of events apart from dmesg or how to tell which event in dmesg is related to powerEvents I will be very grateful.
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LEARN ABOUT OSF1

dxpower

dxpower(8)						      System Manager's Manual							dxpower(8)

NAME

       dxpower - controls energy saving features on systems that can be power managed

SYNOPSIS

       /usr/bin/X11/dxpower

DESCRIPTION

       The  Power Manager application, dxpower, is used to maintain and manage the power management features on computers and peripherals that can
       be power managed.

       Power Manager lets you place monitors in three power saving modes: Standby, Suspend, or Off and lets you  selectively  spin  down  inactive
       disks  to reduce power consumption.  You also can specify when you want power management features to be active: always, never, or only at a
       specific time of day.

       Privileged (root) users have the capability to set system wide power management values.	Non-privileged users set power	management  values
       on their monitors for the current log in session.

       The Power Manager application can be invoked from: The CDE Application Manager Application Group: System_Admin System Admin Subgroup:  Dai-
       lyAdmin

       If you are not using CDE, start Power Manager from the command line: # /usr/bin/X11/dxpower

       For more information about how to use the Power Manager application, start the application and click on the Help button.

       An alternative to using the Power Manager application is to set and control power management attributes from the command line by using  the
       sysconfig  command.  Refer  to  System  Administration for more information about setting and controlling power management from the command
       line.

SEE ALSO

       Commands: sysconfig(8)

       System Administration

																	dxpower(8)