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128 lines
3.8 KiB
PHP
128 lines
3.8 KiB
PHP
<?php declare(strict_types=1);
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/*
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* This file is part of Composer.
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*
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* (c) Nils Adermann <naderman@naderman.de>
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* Jordi Boggiano <j.boggiano@seld.be>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Composer\SelfUpdate;
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use Composer\IO\IOInterface;
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use Composer\Pcre\Preg;
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use Composer\Util\HttpDownloader;
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use Composer\Config;
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/**
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* @author Jordi Boggiano <j.boggiano@seld.be>
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*/
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class Versions
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{
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/**
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* @var string[]
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* @deprecated use Versions::CHANNELS
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*/
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public static $channels = self::CHANNELS;
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public const CHANNELS = ['stable', 'preview', 'snapshot', '1', '2', '2.2'];
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/** @var HttpDownloader */
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private $httpDownloader;
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/** @var Config */
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private $config;
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/** @var string */
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private $channel;
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/** @var array<string, array<int, array{path: string, version: string, min-php: int, eol?: true}>>|null */
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private $versionsData = null;
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public function __construct(Config $config, HttpDownloader $httpDownloader)
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{
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$this->httpDownloader = $httpDownloader;
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$this->config = $config;
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}
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/**
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* @return string
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*/
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public function getChannel(): string
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{
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if ($this->channel) {
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return $this->channel;
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}
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$channelFile = $this->config->get('home').'/update-channel';
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if (file_exists($channelFile)) {
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$channel = trim(file_get_contents($channelFile));
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if (in_array($channel, array('stable', 'preview', 'snapshot', '2.2'), true)) {
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return $this->channel = $channel;
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}
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}
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return $this->channel = 'stable';
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}
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/**
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* @param string $channel
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*
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* @return void
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*/
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public function setChannel(string $channel, IOInterface $io = null): void
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{
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if (!in_array($channel, self::$channels, true)) {
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throw new \InvalidArgumentException('Invalid channel '.$channel.', must be one of: ' . implode(', ', self::$channels));
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}
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$channelFile = $this->config->get('home').'/update-channel';
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$this->channel = $channel;
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// rewrite '2' and '1' channels to stable for future self-updates, but LTS ones like '2.2' remain pinned
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$storedChannel = Preg::isMatch('{^\d+$}D', $channel) ? 'stable' : $channel;
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$previouslyStored = file_exists($channelFile) ? trim((string) file_get_contents($channelFile)) : null;
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file_put_contents($channelFile, $storedChannel.PHP_EOL);
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if ($io !== null && $previouslyStored !== $storedChannel) {
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$io->writeError('Storing "<info>'.$storedChannel.'</info>" as default update channel for the next self-update run.');
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}
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}
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/**
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* @param string|null $channel
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*
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* @return array{path: string, version: string, min-php: int, eol?: true}
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*/
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public function getLatest(?string $channel = null): array
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{
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$versions = $this->getVersionsData();
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foreach ($versions[$channel ?: $this->getChannel()] as $version) {
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if ($version['min-php'] <= PHP_VERSION_ID) {
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return $version;
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}
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}
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throw new \UnexpectedValueException('There is no version of Composer available for your PHP version ('.PHP_VERSION.')');
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}
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/**
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* @return array<string, array<int, array{path: string, version: string, min-php: int, eol?: true}>>
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*/
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private function getVersionsData(): array
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{
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if (null === $this->versionsData) {
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if ($this->config->get('disable-tls') === true) {
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$protocol = 'http';
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} else {
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$protocol = 'https';
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}
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$this->versionsData = $this->httpDownloader->get($protocol . '://getcomposer.org/versions')->decodeJson();
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}
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return $this->versionsData;
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}
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}
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