Shorten melody-like script to install composer packages for a script

measure.php

<?php

$packages = [
	// Your packages here
	'tomzx/file-tracker: ~0.1@dev',
];

$commands = [
	['require', 'packages' => $packages, '--no-update' => true],
	['install'],
];

if ( ! file_exists('composer.phar')) {
	copy('https://getcomposer.org/composer.phar', 'composer.phar');
}

$workingDirectory = sys_get_temp_dir() . '/' . sha1(__FILE__);
if ( ! is_dir($workingDirectory)) {
	mkdir($workingDirectory, 0755, true);
}

$shouldInstall = false;
$composerJson = $workingDirectory . '/composer.json';
$composerLock = $workingDirectory . '/composer.lock';
if (is_readable($composerJson) && is_readable($composerLock)) {
	$hash = md5_file($composerJson);
	$lockContent = file_get_contents($composerLock);
	$shouldInstall = strpos($lockContent, $hash) === false;
} else {
	$shouldInstall = true;
}

if ($shouldInstall) {
	require_once 'phar://composer.phar/vendor/autoload.php';

	$application = new \Composer\Console\Application();
	$application->setAutoExit(false);

	foreach ($commands as $command) {
		$command = array_merge($command, [
			'--working-dir' => $workingDirectory,
		]);
		$application->run(new \Symfony\Component\Console\Input\ArrayInput($command), new \Symfony\Component\Console\Output\NullOutput());
	}
}

require_once $workingDirectory.'/vendor/autoload.php';

// Your script here using the installed packages