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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 OPENSOLARIS

gnome-power-preferences

gnome-power-preferences(1)					   User Commands					gnome-power-preferences(1)

NAME

       gnome-power-preferences - gnome power preferences GUI

SYNOPSIS

       gnome-power-preferences [--help] [--verbose]

DESCRIPTION

       gnome-power-preferences	is a GUI configuration program. It enables you to configure your preferred desktop power management policies, e.g.
       blank screen when lid is closed, hibernate system when battery power is low, suspend system when power button is pressed, or let  CPU  fre-
       quency dynamically adjust based on process load. Then, these policies are enforced by gnome-power-manager(1).

OPTIONS

       This  program  follows  the usual  command line syntax, with long options starting with two dashes (`-').  A summary of options is included
       below.

       --help	       Show summary of options.

       --verbose       Show extra debugging.

EXAMPLES

       Example 1: Launching gnome-power-preferences with the display of extra debugging messages.

       example% gnome-power-preferences --verbose

EXIT STATUS

       The following exit values are returned:

       0	Application exited successfully

       >0	Application exited with failure

FILES

       The following files are used by this application:

       /usr/bin/gnome-power-preferences

	   Executable for gnome power preferences GUI

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWgnome-power-manager	   |
       +-----------------------------+-----------------------------+
       |Interface stability	     |Volatile			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       gnome-power-manager(1), gnome-power-statistics(1), attributes(5)

NOTES

       This manual page was written by Oliver Grawert ogra@ubuntu.com for the Debian system.

       Updated by Simon Zheng, Sun Microsystems Inc., 2008.

SunOS 5.11							    18 Feb 2008 					gnome-power-preferences(1)