本文整理汇总了PHP中Composer\Factory::createRemoteFilesystem方法的典型用法代码示例。如果您正苦于以下问题:PHP Factory::createRemoteFilesystem方法的具体用法?PHP Factory::createRemoteFilesystem怎么用?PHP Factory::createRemoteFilesystem使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Composer\Factory
的用法示例。
在下文中一共展示了Factory::createRemoteFilesystem方法的10个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: __construct
/**
* Constructor.
*
* @param IOInterface $io The IO instance
* @param Config $config The composer configuration
* @param ProcessExecutor $process Process instance, injectable for mocking
* @param RemoteFilesystem $remoteFilesystem Remote Filesystem, injectable for mocking
*/
public function __construct(IOInterface $io, Config $config, ProcessExecutor $process = null, RemoteFilesystem $remoteFilesystem = null)
{
$this->io = $io;
$this->config = $config;
$this->process = $process ?: new ProcessExecutor();
$this->remoteFilesystem = $remoteFilesystem ?: Factory::createRemoteFilesystem($this->io, $config);
}
示例2: __construct
public function __construct(array $repoConfig, IOInterface $io, Config $config, EventDispatcher $eventDispatcher = null, RemoteFilesystem $rfs = null)
{
if (!preg_match('{^[\\w.]+\\??://}', $repoConfig['url'])) {
// assume http as the default protocol
$repoConfig['url'] = 'http://' . $repoConfig['url'];
}
$repoConfig['url'] = rtrim($repoConfig['url'], '/');
if ('https?' === substr($repoConfig['url'], 0, 6)) {
$repoConfig['url'] = (extension_loaded('openssl') ? 'https' : 'http') . substr($repoConfig['url'], 6);
}
$urlBits = parse_url($repoConfig['url']);
if ($urlBits === false || empty($urlBits['scheme'])) {
throw new \UnexpectedValueException('Invalid url given for Composer repository: ' . $repoConfig['url']);
}
if (!isset($repoConfig['options'])) {
$repoConfig['options'] = array();
}
if (isset($repoConfig['allow_ssl_downgrade']) && true === $repoConfig['allow_ssl_downgrade']) {
$this->allowSslDowngrade = true;
}
$this->config = $config;
$this->options = $repoConfig['options'];
$this->url = $repoConfig['url'];
$this->baseUrl = rtrim(preg_replace('{^(.*)(?:/[^/\\]+.json)?(?:[?#].*)?$}', '$1', $this->url), '/');
$this->io = $io;
$this->cache = new Cache($io, $config->get('cache-repo-dir') . '/' . preg_replace('{[^a-z0-9.]}i', '-', $this->url), 'a-z0-9.$');
$this->loader = new ArrayLoader();
$this->rfs = $rfs ?: Factory::createRemoteFilesystem($this->io, $this->config, $this->options);
$this->eventDispatcher = $eventDispatcher;
$this->repoConfig = $repoConfig;
}
示例3: __construct
/**
* Constructor.
*
* @param IOInterface $io The IO instance
* @param Config $config The config
* @param EventDispatcher $eventDispatcher The event dispatcher
* @param Cache $cache Optional cache instance
* @param RemoteFilesystem $rfs The remote filesystem
* @param Filesystem $filesystem The filesystem
*/
public function __construct(IOInterface $io, Config $config, EventDispatcher $eventDispatcher = null, Cache $cache = null, RemoteFilesystem $rfs = null, Filesystem $filesystem = null)
{
$this->io = $io;
$this->config = $config;
$this->eventDispatcher = $eventDispatcher;
$this->rfs = $rfs ?: Factory::createRemoteFilesystem($this->io, $config);
$this->filesystem = $filesystem ?: new Filesystem();
$this->cache = $cache;
if ($this->cache && $this->cache->gcIsNecessary()) {
$this->cache->gc($config->get('cache-files-ttl'), $config->get('cache-files-maxsize'));
}
}
示例4: defaultRepos
/**
* @return RepositoryInterface[]
*/
public static function defaultRepos(IOInterface $io = null, Config $config = null, RepositoryManager $rm = null)
{
if (!$config) {
$config = Factory::createConfig($io);
}
if (!$rm) {
if (!$io) {
throw new \InvalidArgumentException('This function requires either an IOInterface or a RepositoryManager');
}
$rm = static::manager($io, $config, null, Factory::createRemoteFilesystem($io, $config));
}
return static::createRepos($rm, $config->getRepositories());
}
示例5: __construct
/**
* Constructor.
*
* @param array $repoConfig The repository configuration
* @param IOInterface $io The IO instance
* @param Config $config The composer configuration
* @param ProcessExecutor $process Process instance, injectable for mocking
* @param RemoteFilesystem $remoteFilesystem Remote Filesystem, injectable for mocking
*/
public final function __construct(array $repoConfig, IOInterface $io, Config $config, ProcessExecutor $process = null, RemoteFilesystem $remoteFilesystem = null)
{
if (Filesystem::isLocalPath($repoConfig['url'])) {
$repoConfig['url'] = Filesystem::getPlatformPath($repoConfig['url']);
}
$this->url = $repoConfig['url'];
$this->originUrl = $repoConfig['url'];
$this->repoConfig = $repoConfig;
$this->io = $io;
$this->config = $config;
$this->process = $process ?: new ProcessExecutor($io);
$this->remoteFilesystem = $remoteFilesystem ?: Factory::createRemoteFilesystem($this->io, $config);
}
示例6: __construct
public function __construct(array $repoConfig, IOInterface $io, Config $config, EventDispatcher $dispatcher = null, RemoteFilesystem $rfs = null)
{
if (!preg_match('{^https?://}', $repoConfig['url'])) {
$repoConfig['url'] = 'http://' . $repoConfig['url'];
}
$urlBits = parse_url($repoConfig['url']);
if (empty($urlBits['scheme']) || empty($urlBits['host'])) {
throw new \UnexpectedValueException('Invalid url given for PEAR repository: ' . $repoConfig['url']);
}
$this->url = rtrim($repoConfig['url'], '/');
$this->io = $io;
$this->rfs = $rfs ?: Factory::createRemoteFilesystem($this->io, $config);
$this->vendorAlias = isset($repoConfig['vendor-alias']) ? $repoConfig['vendor-alias'] : null;
$this->versionParser = new VersionParser();
$this->repoConfig = $repoConfig;
}
示例7: execute
protected function execute(InputInterface $input, OutputInterface $output)
{
$config = Factory::createConfig();
if ($config->get('disable-tls') === true) {
$baseUrl = 'http://' . self::HOMEPAGE;
} else {
$baseUrl = 'https://' . self::HOMEPAGE;
}
$io = $this->getIO();
$remoteFilesystem = Factory::createRemoteFilesystem($io, $config);
$versionsUtil = new Versions($config, $remoteFilesystem);
// switch channel if requested
foreach (array('stable', 'preview', 'snapshot') as $channel) {
if ($input->getOption($channel)) {
$versionsUtil->setChannel($channel);
}
}
$cacheDir = $config->get('cache-dir');
$rollbackDir = $config->get('data-dir');
$home = $config->get('home');
$localFilename = realpath($_SERVER['argv'][0]) ?: $_SERVER['argv'][0];
if ($input->getOption('update-keys')) {
return $this->fetchKeys($io, $config);
}
// check if current dir is writable and if not try the cache dir from settings
$tmpDir = is_writable(dirname($localFilename)) ? dirname($localFilename) : $cacheDir;
// check for permissions in local filesystem before start connection process
if (!is_writable($tmpDir)) {
throw new FilesystemException('Composer update failed: the "' . $tmpDir . '" directory used to download the temp file could not be written');
}
if ($input->getOption('rollback')) {
return $this->rollback($output, $rollbackDir, $localFilename);
}
$latest = $versionsUtil->getLatest();
$latestVersion = $latest['version'];
$updateVersion = $input->getArgument('version') ?: $latestVersion;
if (preg_match('{^[0-9a-f]{40}$}', $updateVersion) && $updateVersion !== $latestVersion) {
$io->writeError('<error>You can not update to a specific SHA-1 as those phars are not available for download</error>');
return 1;
}
if (Composer::VERSION === $updateVersion) {
$io->writeError('<info>You are already using composer version ' . $updateVersion . '.</info>');
// remove all backups except for the most recent, if any
if ($input->getOption('clean-backups')) {
$this->cleanBackups($rollbackDir, $this->getLastBackupVersion($rollbackDir));
}
return 0;
}
$tempFilename = $tmpDir . '/' . basename($localFilename, '.phar') . '-temp.phar';
$backupFile = sprintf('%s/%s-%s%s', $rollbackDir, strtr(Composer::RELEASE_DATE, ' :', '_-'), preg_replace('{^([0-9a-f]{7})[0-9a-f]{33}$}', '$1', Composer::VERSION), self::OLD_INSTALL_EXT);
$updatingToTag = !preg_match('{^[0-9a-f]{40}$}', $updateVersion);
$io->write(sprintf("Updating to version <info>%s</info>.", $updateVersion));
$remoteFilename = $baseUrl . ($updatingToTag ? "/download/{$updateVersion}/composer.phar" : '/composer.phar');
$signature = $remoteFilesystem->getContents(self::HOMEPAGE, $remoteFilename . '.sig', false);
$remoteFilesystem->copy(self::HOMEPAGE, $remoteFilename, $tempFilename, !$input->getOption('no-progress'));
if (!file_exists($tempFilename) || !$signature) {
$io->writeError('<error>The download of the new composer version failed for an unexpected reason</error>');
return 1;
}
// verify phar signature
if (!extension_loaded('openssl') && $config->get('disable-tls')) {
$io->writeError('<warning>Skipping phar signature verification as you have disabled OpenSSL via config.disable-tls</warning>');
} else {
if (!extension_loaded('openssl')) {
throw new \RuntimeException('The openssl extension is required for phar signatures to be verified but it is not available. ' . 'If you can not enable the openssl extension, you can disable this error, at your own risk, by setting the \'disable-tls\' option to true.');
}
$sigFile = 'file://' . $home . '/' . ($updatingToTag ? 'keys.tags.pub' : 'keys.dev.pub');
if (!file_exists($sigFile)) {
file_put_contents($home . '/keys.dev.pub', <<<DEVPUBKEY
-----BEGIN PUBLIC KEY-----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-----END PUBLIC KEY-----
DEVPUBKEY
);
file_put_contents($home . '/keys.tags.pub', <<<TAGSPUBKEY
-----BEGIN PUBLIC KEY-----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-----END PUBLIC KEY-----
//.........这里部分代码省略.........
示例8: execute
/**
* {@inheritdoc}
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
$composer = $this->getComposer(false);
$io = $this->getIO();
if ($composer) {
$commandEvent = new CommandEvent(PluginEvents::COMMAND, 'diagnose', $input, $output);
$composer->getEventDispatcher()->dispatch($commandEvent->getName(), $commandEvent);
$io->write('Checking composer.json: ', false);
$this->outputResult($this->checkComposerSchema());
}
if ($composer) {
$config = $composer->getConfig();
} else {
$config = Factory::createConfig();
}
$this->rfs = Factory::createRemoteFilesystem($io, $config);
$this->process = new ProcessExecutor($io);
$io->write('Checking platform settings: ', false);
$this->outputResult($this->checkPlatform());
$io->write('Checking git settings: ', false);
$this->outputResult($this->checkGit());
$io->write('Checking http connectivity to packagist: ', false);
$this->outputResult($this->checkHttp('http', $config));
$io->write('Checking https connectivity to packagist: ', false);
$this->outputResult($this->checkHttp('https', $config));
$opts = stream_context_get_options(StreamContextFactory::getContext('http://example.org'));
if (!empty($opts['http']['proxy'])) {
$io->write('Checking HTTP proxy: ', false);
$this->outputResult($this->checkHttpProxy());
$io->write('Checking HTTP proxy support for request_fulluri: ', false);
$this->outputResult($this->checkHttpProxyFullUriRequestParam());
$io->write('Checking HTTPS proxy support for request_fulluri: ', false);
$this->outputResult($this->checkHttpsProxyFullUriRequestParam());
}
if ($oauth = $config->get('github-oauth')) {
foreach ($oauth as $domain => $token) {
$io->write('Checking ' . $domain . ' oauth access: ', false);
$this->outputResult($this->checkGithubOauth($domain, $token));
}
} else {
$io->write('Checking github.com rate limit: ', false);
try {
$rate = $this->getGithubRateLimit('github.com');
$this->outputResult(true);
if (10 > $rate['remaining']) {
$io->write('<warning>WARNING</warning>');
$io->write(sprintf('<comment>Github has a rate limit on their API. ' . 'You currently have <options=bold>%u</options=bold> ' . 'out of <options=bold>%u</options=bold> requests left.' . PHP_EOL . 'See https://developer.github.com/v3/#rate-limiting and also' . PHP_EOL . ' https://getcomposer.org/doc/articles/troubleshooting.md#api-rate-limit-and-oauth-tokens</comment>', $rate['remaining'], $rate['limit']));
}
} catch (\Exception $e) {
if ($e instanceof TransportException && $e->getCode() === 401) {
$this->outputResult('<comment>The oauth token for github.com seems invalid, run "composer config --global --unset github-oauth.github.com" to remove it</comment>');
} else {
$this->outputResult($e);
}
}
}
$io->write('Checking disk free space: ', false);
$this->outputResult($this->checkDiskSpace($config));
$io->write('Checking pubkeys: ', false);
$this->outputResult($this->checkPubKeys($config));
$io->write('Checking composer version: ', false);
$this->outputResult($this->checkVersion());
return $this->failures;
}
示例9: installRootPackage
protected function installRootPackage(IOInterface $io, Config $config, $packageName, $directory = null, $packageVersion = null, $stability = 'stable', $preferSource = false, $preferDist = false, $installDevPackages = false, $repositoryUrl = null, $disablePlugins = false, $noScripts = false, $keepVcs = false, $noProgress = false)
{
if (null === $repositoryUrl) {
$sourceRepo = new CompositeRepository(Factory::createDefaultRepositories($io, $config));
} elseif ("json" === pathinfo($repositoryUrl, PATHINFO_EXTENSION) && file_exists($repositoryUrl)) {
$json = new JsonFile($repositoryUrl, Factory::createRemoteFilesystem($io, $config));
$data = $json->read();
if (!empty($data['packages']) || !empty($data['includes']) || !empty($data['provider-includes'])) {
$sourceRepo = new ComposerRepository(array('url' => 'file://' . strtr(realpath($repositoryUrl), '\\', '/')), $io, $config);
} else {
$sourceRepo = new FilesystemRepository($json);
}
} elseif (0 === strpos($repositoryUrl, 'http')) {
$sourceRepo = new ComposerRepository(array('url' => $repositoryUrl), $io, $config);
} else {
throw new \InvalidArgumentException("Invalid repository url given. Has to be a .json file or an http url.");
}
$parser = new VersionParser();
$requirements = $parser->parseNameVersionPairs(array($packageName));
$name = strtolower($requirements[0]['name']);
if (!$packageVersion && isset($requirements[0]['version'])) {
$packageVersion = $requirements[0]['version'];
}
if (null === $stability) {
if (preg_match('{^[^,\\s]*?@(' . implode('|', array_keys(BasePackage::$stabilities)) . ')$}i', $packageVersion, $match)) {
$stability = $match[1];
} else {
$stability = VersionParser::parseStability($packageVersion);
}
}
$stability = VersionParser::normalizeStability($stability);
if (!isset(BasePackage::$stabilities[$stability])) {
throw new \InvalidArgumentException('Invalid stability provided (' . $stability . '), must be one of: ' . implode(', ', array_keys(BasePackage::$stabilities)));
}
$pool = new Pool($stability);
$pool->addRepository($sourceRepo);
// using those 3 constants to build a version without the 'extra' bit that can contain garbage
$phpVersion = PHP_MAJOR_VERSION . '.' . PHP_MINOR_VERSION . '.' . PHP_RELEASE_VERSION;
// find the latest version if there are multiple
$versionSelector = new VersionSelector($pool);
$package = $versionSelector->findBestCandidate($name, $packageVersion, $phpVersion, $stability);
if (!$package) {
throw new \InvalidArgumentException("Could not find package {$name}" . ($packageVersion ? " with version {$packageVersion}." : " with stability {$stability}."));
}
if (null === $directory) {
$parts = explode("/", $name, 2);
$directory = getcwd() . DIRECTORY_SEPARATOR . array_pop($parts);
}
// handler Ctrl+C for unix-like systems
if (function_exists('pcntl_signal')) {
declare (ticks=100);
pcntl_signal(SIGINT, function () use($directory) {
$fs = new Filesystem();
$fs->removeDirectory($directory);
exit(130);
});
}
$io->writeError('<info>Installing ' . $package->getName() . ' (' . $package->getFullPrettyVersion(false) . ')</info>');
if ($disablePlugins) {
$io->writeError('<info>Plugins have been disabled.</info>');
}
if (0 === strpos($package->getPrettyVersion(), 'dev-') && in_array($package->getSourceType(), array('git', 'hg'))) {
$package->setSourceReference(substr($package->getPrettyVersion(), 4));
}
$dm = $this->createDownloadManager($io, $config);
$dm->setPreferSource($preferSource)->setPreferDist($preferDist)->setOutputProgress(!$noProgress);
$projectInstaller = new ProjectInstaller($directory, $dm);
$im = $this->createInstallationManager();
$im->addInstaller($projectInstaller);
$im->install(new InstalledFilesystemRepository(new JsonFile('php://memory')), new InstallOperation($package));
$im->notifyInstalls($io);
$installedFromVcs = 'source' === $package->getInstallationSource();
$io->writeError('<info>Created project in ' . $directory . '</info>');
chdir($directory);
$_SERVER['COMPOSER_ROOT_VERSION'] = $package->getPrettyVersion();
putenv('COMPOSER_ROOT_VERSION=' . $_SERVER['COMPOSER_ROOT_VERSION']);
return $installedFromVcs;
}
示例10: execute
protected function execute(InputInterface $input, OutputInterface $output)
{
$config = Factory::createConfig();
if ($config->get('disable-tls') === true) {
$baseUrl = 'http://' . self::HOMEPAGE;
} else {
$baseUrl = 'https://' . self::HOMEPAGE;
}
$io = $this->getIO();
$remoteFilesystem = Factory::createRemoteFilesystem($io, $config);
$cacheDir = $config->get('cache-dir');
$rollbackDir = $config->get('data-dir');
$localFilename = realpath($_SERVER['argv'][0]) ?: $_SERVER['argv'][0];
// check if current dir is writable and if not try the cache dir from settings
$tmpDir = is_writable(dirname($localFilename)) ? dirname($localFilename) : $cacheDir;
// check for permissions in local filesystem before start connection process
if (!is_writable($tmpDir)) {
throw new FilesystemException('Composer update failed: the "' . $tmpDir . '" directory used to download the temp file could not be written');
}
if (!is_writable($localFilename)) {
throw new FilesystemException('Composer update failed: the "' . $localFilename . '" file could not be written');
}
if ($input->getOption('rollback')) {
return $this->rollback($output, $rollbackDir, $localFilename);
}
$latestVersion = trim($remoteFilesystem->getContents(self::HOMEPAGE, $baseUrl . '/version', false));
$updateVersion = $input->getArgument('version') ?: $latestVersion;
if (preg_match('{^[0-9a-f]{40}$}', $updateVersion) && $updateVersion !== $latestVersion) {
$io->writeError('<error>You can not update to a specific SHA-1 as those phars are not available for download</error>');
return 1;
}
if (Composer::VERSION === $updateVersion) {
$io->writeError('<info>You are already using composer version ' . $updateVersion . '.</info>');
return 0;
}
$tempFilename = $tmpDir . '/' . basename($localFilename, '.phar') . '-temp.phar';
$backupFile = sprintf('%s/%s-%s%s', $rollbackDir, strtr(Composer::RELEASE_DATE, ' :', '_-'), preg_replace('{^([0-9a-f]{7})[0-9a-f]{33}$}', '$1', Composer::VERSION), self::OLD_INSTALL_EXT);
$io->writeError(sprintf("Updating to version <info>%s</info>.", $updateVersion));
$remoteFilename = $baseUrl . (preg_match('{^[0-9a-f]{40}$}', $updateVersion) ? '/composer.phar' : "/download/{$updateVersion}/composer.phar");
$remoteFilesystem->copy(self::HOMEPAGE, $remoteFilename, $tempFilename, !$input->getOption('no-progress'));
if (!file_exists($tempFilename)) {
$io->writeError('<error>The download of the new composer version failed for an unexpected reason</error>');
return 1;
}
// remove saved installations of composer
if ($input->getOption('clean-backups')) {
$finder = $this->getOldInstallationFinder($rollbackDir);
$fs = new Filesystem();
foreach ($finder as $file) {
$file = (string) $file;
$io->writeError('<info>Removing: ' . $file . '</info>');
$fs->remove($file);
}
}
if ($err = $this->setLocalPhar($localFilename, $tempFilename, $backupFile)) {
$io->writeError('<error>The file is corrupted (' . $err->getMessage() . ').</error>');
$io->writeError('<error>Please re-run the self-update command to try again.</error>');
return 1;
}
if (file_exists($backupFile)) {
$io->writeError('Use <info>composer self-update --rollback</info> to return to version ' . Composer::VERSION);
} else {
$io->writeError('<warning>A backup of the current version could not be written to ' . $backupFile . ', no rollback possible</warning>');
}
}