A little php script that creates sym links for the latest daily builds within a directory

latest-daily.php

<?php
/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2016 Joas Schilling
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

$dir = '/home/nickv/Schreibtisch/test';

$directory = new \DirectoryIterator($dir);

$latest = [];
$latestStable = 0;
echo 'Starting to scan: ' . $dir . "\n";

foreach ($directory as $file) {
	if (strpos($file->getFilename(), 'latest') === 0) {
		// Delete old latest links
		unlink($dir . '/' . $file->getFilename());
		continue;
	}

	if (!preg_match('/^nextcloud\-(\d+|master)\-daily\-(\d{4}-\d{2}-\d{2})\.zip\.md5$/i', $file->getFilename(), $matches)) {
		continue;
	}

	list($file, $branch, $date) = $matches;
	echo 'Found version: ' . $branch . ' - ' . $date . "\n";

	if ($branch !== 'master') {
		$branch = (int) $branch;
		$latestStable = (int) max($latestStable, $branch);
	}

	if (!isset($latest[$branch]) || $latest[$branch] < $date) {
		$latest[$branch] = $date;
	}
}

// Files to create symlinks for
$symlinks = [
	'.tar.bz2', '.tar.bz2.asc',
	'.zip', '.zip.asc',
];
$copyPaste = [
	'.tar.bz2.md5', '.tar.bz2.sha256', '.tar.bz2.sha512',
	'.zip.md5', '.zip.sha256', '.zip.sha512',
];

foreach ($latest as $branch => $date) {
	$versionName = 'nextcloud-' . $branch . '-daily-' . $date;
	$latestName = $branch === 'master' ? 'latest-' . $branch : 'latest-stable' . $branch;

	foreach ($symlinks as $suffix) {
		// latest-stable*.zip to latest daily of the specific branch.
		symlink($dir . '/' . $versionName . $suffix, $dir . '/' . $latestName . $suffix);
	}

	foreach ($copyPaste as $suffix) {
		// latest-stable*.zip.md5 to latest daily of the specific branch.
		$content = file_get_contents($dir . '/' . $versionName . $suffix);
		$content = str_replace(' ' . $versionName . '.', ' ' . $latestName . '.', $content);
		file_put_contents($dir . '/' . $latestName . $suffix, $content);
	}

	if ($branch === $latestStable) {
		$latestName = 'latest';

		// latest.zip to latest daily of the latest branch.
		foreach ($symlinks as $suffix) {
			symlink($dir . '/' . $versionName . $suffix, $dir . '/' . $latestName . $suffix);
		}

		foreach ($copyPaste as $suffix) {
			// latest.zip.md5 to latest daily of the latest branch.
			$content = file_get_contents($dir . '/' . $versionName . $suffix);
			$content = str_replace(' ' . $versionName . '.', ' ' . $latestName . '.', $content);
			file_put_contents($dir . '/' . $latestName . $suffix, $content);
		}
	}
}