Viewing file:  Versions.php (3.68 KB) -rw-r--r--
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<?php declare(strict_types=1);
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\SelfUpdate;
use Composer\IO\IOInterface;
use Composer\Pcre\Preg;
use Composer\Util\HttpDownloader;
use Composer\Config;
/**
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class Versions
{
/**
* @var string[]
* @deprecated use Versions::CHANNELS
*/
public static $channels = self::CHANNELS;
public const CHANNELS = ['stable', 'preview', 'snapshot', '1', '2', '2.2'];
/** @var HttpDownloader */
private $httpDownloader;
/** @var Config */
private $config;
/** @var string */
private $channel;
/** @var array<string, array<int, array{path: string, version: string, min-php: int, eol?: true}>>|null */
private $versionsData = null;
public function __construct(Config $config, HttpDownloader $httpDownloader)
{
$this->httpDownloader = $httpDownloader;
$this->config = $config;
}
public function getChannel(): string
{
if ($this->channel) {
return $this->channel;
}
$channelFile = $this->config->get('home').'/update-channel';
if (file_exists($channelFile)) {
$channel = trim(file_get_contents($channelFile));
if (in_array($channel, ['stable', 'preview', 'snapshot', '2.2'], true)) {
return $this->channel = $channel;
}
}
return $this->channel = 'stable';
}
public function setChannel(string $channel, ?IOInterface $io = null): void
{
if (!in_array($channel, self::CHANNELS, true)) {
throw new \InvalidArgumentException('Invalid channel '.$channel.', must be one of: ' . implode(', ', self::CHANNELS));
}
$channelFile = $this->config->get('home').'/update-channel';
$this->channel = $channel;
// rewrite '2' and '1' channels to stable for future self-updates, but LTS ones like '2.2' remain pinned
$storedChannel = Preg::isMatch('{^\d+$}D', $channel) ? 'stable' : $channel;
$previouslyStored = file_exists($channelFile) ? trim((string) file_get_contents($channelFile)) : null;
file_put_contents($channelFile, $storedChannel.PHP_EOL);
if ($io !== null && $previouslyStored !== $storedChannel) {
$io->writeError('Storing "<info>'.$storedChannel.'</info>" as default update channel for the next self-update run.');
}
}
/**
* @return array{path: string, version: string, min-php: int, eol?: true}
*/
public function getLatest(?string $channel = null): array
{
$versions = $this->getVersionsData();
foreach ($versions[$channel ?: $this->getChannel()] as $version) {
if ($version['min-php'] <= PHP_VERSION_ID) {
return $version;
}
}
throw new \UnexpectedValueException('There is no version of Composer available for your PHP version ('.PHP_VERSION.')');
}
/**
* @return array<string, array<int, array{path: string, version: string, min-php: int, eol?: true}>>
*/
private function getVersionsData(): array
{
if (null === $this->versionsData) {
if ($this->config->get('disable-tls') === true) {
$protocol = 'http';
} else {
$protocol = 'https';
}
$this->versionsData = $this->httpDownloader->get($protocol . '://getcomposer.org/versions')->decodeJson();
}
return $this->versionsData;
}
}
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