Andries Mooij amooij

macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.

You've got two main options:

	#!/usr/bin/php
	<?php

	// copied from http://phpadvent.org/2008/dont-commit-that-error-by-travis-swicegood
	// authored by Travis Swicegood
	$output = array();
	$return = 0;
	exec('git rev-parse --verify HEAD 2> /dev/null', $output, $return);
	$against = $return == 0 ? 'HEAD' : '4b825dc642cb6eb9a060e54bf8d69288fbee4904';