mirror of
https://github.com/nextcloud/all-in-one.git
synced 2024-12-26 08:41:07 +08:00
464 lines
13 KiB
PHP
464 lines
13 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-only
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* Copied over from https://github.com/nextcloud/server/blob/master/build/license.php
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*/
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class Licenses {
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protected $paths = [];
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protected $mailMap = [];
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protected $checkFiles = [];
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public $authors = [];
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public function __construct() {
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$this->licenseText = <<<EOD
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/**
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@COPYRIGHT@
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*
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@AUTHORS@
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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EOD;
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$this->licenseTextLegacy = <<<EOD
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/**
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@COPYRIGHT@
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*
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@AUTHORS@
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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EOD;
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$this->licenseTextLegacy = str_replace('@YEAR@', date('Y'), $this->licenseTextLegacy);
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}
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/**
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* @param string|string[] $folder
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* @param string|bool $gitRoot
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*/
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public function exec($folder, $gitRoot = false) {
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if (is_array($folder)) {
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foreach ($folder as $f) {
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$this->exec($f, $gitRoot);
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}
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return;
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}
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if ($gitRoot !== false && substr($gitRoot, -1) !== '/') {
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$gitRoot .= '/';
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}
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if (is_file($folder)) {
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$this->handleFile($folder, $gitRoot);
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$this->printFilesToCheck();
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return;
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}
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$excludes = array_map(function ($item) use ($folder) {
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return $folder . '/' . $item;
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}, ['vendor', '3rdparty', '.git', 'l10n', 'js', 'node_modules']);
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$iterator = new RecursiveDirectoryIterator($folder, RecursiveDirectoryIterator::SKIP_DOTS);
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$iterator = new RecursiveCallbackFilterIterator($iterator, function ($item) use ($folder, $excludes) {
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/** @var SplFileInfo $item */
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foreach ($excludes as $exclude) {
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if (substr($item->getPath(), 0, strlen($exclude)) === $exclude) {
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return false;
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}
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}
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return true;
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});
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$iterator = new RecursiveIteratorIterator($iterator);
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$iterator = new RegexIterator($iterator, '/^.+\.(js|php|md|twig|xml|Dockerfile|Caddyfile|sh|conf|script|cfg|motd|yml|yaml|css)$/i');
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foreach ($iterator as $file) {
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/** @var SplFileInfo $file */
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$this->handleFile($file, $gitRoot);
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}
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$this->printFilesToCheck();
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}
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public function writeAuthorsFile() {
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ksort($this->authors);
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$template = '<!--
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- SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
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- SPDX-License-Identifier: AGPL-3.0-or-later
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-->
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# Authors
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@AUTHORS@
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';
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$authors = implode(PHP_EOL, array_map(function ($author) {
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return ' - ' . $author;
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}, $this->authors));
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$template = str_replace('@AUTHORS@', $authors, $template);
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file_put_contents(__DIR__ . '/../AUTHORS', $template);
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}
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public function handleFile($path, $gitRoot) {
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$isPhp = preg_match('/^.+\.php$/i', $path);
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$isShell = preg_match('/^.+\.sh$/i', $path);
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$source = file_get_contents($path);
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if ($this->isMITLicensed($source)) {
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echo "MIT licensed file: $path" . PHP_EOL;
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return;
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}
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$copyrightNotices = $this->getCopyrightNotices($path, $source);
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$authors = $this->getAuthors($path, $gitRoot);
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if ($this->isOwnCloudLicensed($source)) {
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$license = str_replace('@AUTHORS@', $authors, $this->licenseTextLegacy);
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$this->checkCopyrightState($path, $gitRoot);
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} else {
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$license = str_replace('@AUTHORS@', $authors, $this->licenseText);
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}
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if ($copyrightNotices === '') {
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$creator = $this->getCreatorCopyright($path, $gitRoot);
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$license = str_replace('@COPYRIGHT@', $creator, $license);
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} else {
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$license = str_replace('@COPYRIGHT@', $copyrightNotices, $license);
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}
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[$source, $isStrict] = $this->eatOldLicense($source);
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if ($isPhp) {
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if ($isStrict) {
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$source = '<?php' . PHP_EOL . PHP_EOL . 'declare(strict_types=1);' . PHP_EOL . PHP_EOL . $license . PHP_EOL . $source;
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} else {
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$source = '<?php' . PHP_EOL . $license . PHP_EOL . $source;
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}
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} else if ($isShell) {
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$source = '#!/bin/bash' . PHP_EOL . $license . PHP_EOL . PHP_EOL . $source;
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} else {
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$source = $license . PHP_EOL . PHP_EOL . $source;
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}
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file_put_contents($path, $source);
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echo "License updated: $path" . PHP_EOL;
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}
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/**
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* @param string $source
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* @return bool
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*/
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private function isMITLicensed($source) {
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$lines = explode(PHP_EOL, $source);
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while (!empty($lines)) {
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$line = $lines[0];
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array_shift($lines);
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if (strpos($line, 'The MIT License') !== false) {
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return true;
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}
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}
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return false;
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}
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private function isOwnCloudLicensed($source) {
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$lines = explode(PHP_EOL, $source);
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while (!empty($lines)) {
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$line = $lines[0];
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array_shift($lines);
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if (strpos($line, 'ownCloud, Inc') !== false || strpos($line, 'ownCloud GmbH') !== false) {
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return true;
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}
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}
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return false;
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}
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/**
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* @param string $source
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* @return string
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*/
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private function eatOldLicense($source) {
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$lines = explode(PHP_EOL, $source);
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$isStrict = false;
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$index = 0;
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while (!empty($lines) && array_key_exists($index, $lines)) {
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$line = $lines[$index];
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if (trim($line) === '<?php') {
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array_splice($lines, $index, 1);
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continue;
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}
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if (trim($line) === '#!/bin/bash') {
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array_splice($lines, $index, 1);
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continue;
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}
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// Skipping if the line contains important js keywords
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if (strpos($line, 'eslint-') !== false
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|| strpos($line, 'globals') !== false
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|| strpos($line, 'const') !== false
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|| strpos($line, 'import') !== false) {
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$index++;
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continue;
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}
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if (strpos($line, '<?php declare(strict_types') !== false) {
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$isStrict = true;
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array_splice($lines, $index, 1);
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continue;
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}
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if (strpos($line, 'declare (strict_types') !== false) {
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$isStrict = true;
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array_splice($lines, $index, 1);
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continue;
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}
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if (strpos($line, 'declare(strict_types') !== false) {
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$isStrict = true;
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array_splice($lines, $index, 1);
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continue;
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}
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if (strpos($line, '/**') !== false) {
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array_splice($lines, $index, 1);
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continue;
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}
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// If we reach the end of the copyright header (and it's not a one-line comment /* xxx */)
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if (strpos($line, '*/') !== false && strpos($line, '/*') !== false) {
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array_splice($lines, $index, 1);
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break;
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}
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if (strpos($line, '*') !== false) {
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array_splice($lines, $index, 1);
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continue;
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}
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if (trim($line) === '') {
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array_splice($lines, $index, 1);
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continue;
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}
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break;
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}
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return [implode(PHP_EOL, $lines), $isStrict];
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}
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private function getCopyrightNotices($path, $file) {
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$licenseHeaderCopyrightAtLines = trim(shell_exec("grep -ni 'copyright' $path | cut -d ':' -f 1"));
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$lineByLine = explode(PHP_EOL, $file);
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$copyrightNotice = [];
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if (trim($licenseHeaderCopyrightAtLines !== '')) {
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$copyrightNotice = array_map(function ($line) use ($lineByLine) {
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return $lineByLine[(int)$line - 1];
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}, explode(PHP_EOL, $licenseHeaderCopyrightAtLines));
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}
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return implode(PHP_EOL, $copyrightNotice);
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}
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/**
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* check if all lines where changed after the Nextcloud fork.
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* That's not a guarantee that we can switch to AGPLv3 or later,
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* but a good indicator that we should have a look at the file
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*
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* @param $path
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* @param $gitRoot
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*/
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private function checkCopyrightState($path, $gitRoot) {
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// This was the date the Nextcloud fork was created
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$deadline = new DateTime('06/06/2016');
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$deadlineTimestamp = $deadline->getTimestamp();
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$buildDir = getcwd();
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if ($gitRoot) {
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chdir($gitRoot);
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$path = substr($path, strlen($gitRoot));
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}
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$out = shell_exec("git --no-pager blame --line-porcelain $path | sed -n 's/^author-time //p'");
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if ($gitRoot) {
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chdir($buildDir);
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}
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$timestampChanges = explode(PHP_EOL, $out);
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$timestampChanges = array_slice($timestampChanges, 0, count($timestampChanges) - 1);
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foreach ($timestampChanges as $timestamp) {
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if ((int)$timestamp < $deadlineTimestamp) {
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return;
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}
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}
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//all changes after the deadline
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$this->checkFiles[] = $path;
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}
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private function printFilesToCheck() {
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if (!empty($this->checkFiles)) {
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print "\n";
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print 'For following files all lines changed since the Nextcloud fork.' . PHP_EOL;
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print 'Please check if these files can be moved over to AGPLv3 or later' . PHP_EOL;
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print "\n";
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foreach ($this->checkFiles as $file) {
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print $file . PHP_EOL;
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}
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print "\n";
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}
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}
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private function filterAuthors($authors = []) {
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$authors = array_filter($authors, function ($author) {
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return !in_array($author, [
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'',
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'Not Committed Yet <not.committed.yet>',
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'Jenkins for ownCloud <owncloud-bot@tmit.eu>',
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'Scrutinizer Auto-Fixer <auto-fixer@scrutinizer-ci.com>',
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]);
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});
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// Strip out dependabot
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$authors = array_filter($authors, function ($author) {
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return strpos($author, 'dependabot') === false;
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});
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return $authors;
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}
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private function getCreatorCopyright($file, $gitRoot) {
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$buildDir = getcwd();
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if ($gitRoot) {
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chdir($gitRoot);
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$file = substr($file, strlen($gitRoot));
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}
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$year = date('Y');
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$blame = shell_exec("git blame --line-porcelain $file | sed -n 's/^author //p;s/^author-mail //p' | sed 'N;s/\\n/ /'");
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$authors = explode(PHP_EOL, $blame);
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if ($gitRoot) {
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chdir($buildDir);
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}
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$authors = $this->filterAuthors($authors);
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if ($gitRoot) {
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$authors = array_map([$this, 'checkCoreMailMap'], $authors);
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$authors = array_unique($authors);
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}
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$creator = array_key_exists(0, $authors)
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? $this->fixInvalidEmail($authors[0])
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: '';
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return " * @copyright Copyright (c) $year $creator";
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}
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private function getAuthors($file, $gitRoot) {
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// only add authors that changed code and not the license header
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$licenseHeaderEndsAtLine = trim(shell_exec("grep -n '*/' $file | head -n 1 | cut -d ':' -f 1"));
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$buildDir = getcwd();
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if ($gitRoot) {
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chdir($gitRoot);
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$file = substr($file, strlen($gitRoot));
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}
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$out = shell_exec("git blame --line-porcelain -L $licenseHeaderEndsAtLine, $file | sed -n 's/^author //p;s/^author-mail //p' | sed 'N;s/\\n/ /' | sort -f | uniq");
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if ($gitRoot) {
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chdir($buildDir);
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}
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$authors = explode(PHP_EOL, $out);
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$authors = $this->filterAuthors($authors);
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if ($gitRoot) {
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$authors = array_map([$this, 'checkCoreMailMap'], $authors);
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$authors = array_unique($authors);
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}
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$authors = array_map(function ($author) {
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$author = $this->fixInvalidEmail($author);
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$this->authors[$author] = $author;
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return " * @author $author";
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}, $authors);
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return implode(PHP_EOL, $authors);
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}
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private function checkCoreMailMap($author) {
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if (empty($this->mailMap)) {
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$content = file_get_contents(__DIR__ . '/../.mailmap');
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$entries = explode("\n", $content);
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foreach ($entries as $entry) {
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if (strpos($entry, '> ') === false) {
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$this->mailMap[$entry] = $entry;
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} else {
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[$use, $actual] = explode('> ', $entry);
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$this->mailMap[$actual] = $use . '>';
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}
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}
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}
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if (isset($this->mailMap[$author])) {
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return $this->mailMap[$author];
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}
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return $author;
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}
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private function fixInvalidEmail($author) {
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preg_match('/<(.*)>/', $author, $mailMatch);
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if (count($mailMatch) === 2 && !filter_var($mailMatch[1], FILTER_VALIDATE_EMAIL)) {
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$author = str_replace('<' . $mailMatch[1] . '>', '"' . $mailMatch[1] . '"', $author);
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}
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return $author;
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}
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}
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$licenses = new Licenses;
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if (isset($argv[1])) {
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$licenses->exec($argv[1], isset($argv[2]) ? $argv[1] : false);
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} else {
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$licenses->exec([
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// '../.github', // Not possible because of workflow restrictions
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'../app',
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'../community-containers',
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'../Containers',
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'../manual-install',
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'../nextcloud-aio-helm-chart',
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'../php',
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'../tests',
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'../compose.yaml',
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'../develop.md',
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'../docker-ipv6-support.md',
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'../docker-rootless.md',
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'../local-instance.md',
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'../manual-upgrade.md',
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'../migration.md',
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'../multiple-instances.md',
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'../readme.md',
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'../reverse-proxy.md',
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]);
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$licenses->writeAuthorsFile();
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}
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