kill-zombie-chrome.php

<?php

// $ps = `ps -axf -o pid,command | grep -C3 '\/chrome\/'`;
// $ps = `ps -axf -o pid,command | grep 'chrome' | grep -C1 -v '\\_'`;

$ps1 = '';
if ($pid1 = findPsPid($ps1)) {
	sleep(20);
	$ps2 = '';
	if ($pid2 = findPsPid($ps2)) {
		if ($pid1 == $pid2) {
			`kill $pid1`;
			exit;

			echo $ps1;
			if ($ps1 !== $ps2) {
				echo "\n\n====\n\n" . $ps2;
			}
		}
	}
}

function findPsPid(?string &$ps = null) {
	$ps1 = `ps -axf -o pid,command | grep 'chrome\\|lighthouse' | grep -A1 -v '\\\\_'`;
	$pid = $ps1 ? findPid($ps1) : null;
	if ($pid) {
		$ps = $ps1;
		return $pid;
	}
	return null;
}

function isRootChrome(string $command) : bool {
	return strpos($command, '/home/forge/.cache/puppeteer/chrome/linux-') === 0;
}

function splitLine(string $line) : array {
	[$pid, $command] = preg_split('#\\s+#', trim($line), 2);
	return [$pid, $command];
}

function findPid(string $ps) : ?int {
	$lines = array_filter(explode("\n", trim($ps ?? '')));
	foreach ($lines as $i => $line) {
		[$pid, $command] = splitLine($line);
		if (isRootChrome($command)) {
			return $pid;
		}

		if (preg_match('#^node /home/forge/[^/]+/node_modules/lighthouse/cli/index\.js#', $command)) {
			$nextLine = $lines[$i + 1] ?? null;
			if ($nextLine) {
				[$nextPid, $nextCommand] = splitLine($nextLine);
				$rootedNextCommand = preg_replace('#^\\\\_ #', '', $nextCommand);
				if (isRootChrome($rootedNextCommand)) {
					return $nextPid;
				}
			}
		}
	}
	return null;
}