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(8);
	$ps2 = '';
	if ($pid2 = findPsPid($ps2)) {
		if ($pid1 == $pid2) {
			// `kill $pid1`;
			echo $ps1;
			if ($ps1 !== $ps2) {
				echo "\n\n====\n\n" . $ps2;
			}
		}
	}
}

return;

$test1 = <<<PS
3734200 node /home/forge/app.digitalinsightsplatform.nl/node_modules/lighthouse/cli/index.js --chrome-flags='--no-sandbox --headless --disable-gpu' --only-categories=performance --only-categories=accessibility --only-categories=seo --locale=nl --max-wait-for-load=12000 --throttling.cpuSlowdownMultiplier=2 --output=json --output-path=/tmp/dip/lighthouse264539209/desktop-0.json https://www.openscience-twente.com/ --preset=desktop
3734222  \_ /home/forge/.cache/puppeteer/chrome/linux-1095492/chrome-linux/chrome --disable-features=Translate,OptimizationHints,MediaRouter --disable-extensions --disable-component-extensions-with-background-pages --disable-background-networking --disable-component-update --disable-client-side-phishing-detection --disable-sync --metrics-recording-only --disable-default-apps --mute-audio --no-default-browser-check --no-first-run --disable-backgrounding-occluded-windows --disable-renderer-backgrounding --disable-background-timer-throttling --disable-ipc-flooding-protection --password-store=basic --use-mock-keychain --force-fieldtrials=*BackgroundTracing/default/ --remote-debugging-port=42725 --disable-setuid-sandbox --user-data-dir=/tmp/lighthouse.UFLIZ4g --no-sandbox --headless --disable-gpu about:blank
PS;
$test2 = <<<PS
2378935 /home/forge/.cache/puppeteer/chrome/linux-1095492/chrome-linux/chrome --disable-features=Translate,OptimizationHints,MediaRouter --disable-extensions --disable-component-extensions-with-background-pages --disable-background-networking --disable-component-update --disable-client-side-phishing-detection --disable-sync --metrics-recording-only --disable-default-apps --mute-audio --no-default-browser-check --no-first-run --disable-backgrounding-occluded-windows --disable-renderer-backgrounding --disable-background-timer-throttling --disable-ipc-flooding-protection --password-store=basic --use-mock-keychain --force-fieldtrials=*BackgroundTracing/default/ --remote-debugging-port=34285 --disable-setuid-sandbox --user-data-dir=/tmp/lighthouse.1WZkpL8 --no-sandbox --headless --disable-gpu about:blank
2378937  \_ /home/forge/.cache/puppeteer/chrome/linux-1095492/chrome-linux/chrome --type=zygote --no-zygote-sandbox --no-sandbox --headless --headless
PS;

var_dump(findPid($test1));
var_dump(findPid($test2));

function findPsPid(?string &$ps = null) {
	$ps1 = `ps -axf -o pid,command | grep 'chrome\\|lighthouse' | grep -A1 -v '\\\\_'`;
// var_dump($ps1);
	$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 {
	// echo $ps;
	$lines = array_filter(explode("\n", trim($ps ?? '')));
	foreach ($lines as $i => $line) {
		[$pid, $command] = splitLine($line);
// var_dump($pid, $command);
// echo "\n\n\n";
		if (isRootChrome($command)) {
// echo "found chrome\n";
			return $pid;
		}

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