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Add version arg, docs for --rollback and reorganize the code, refs #2522

pull/2532/head
Jordi Boggiano 2013-12-26 19:09:06 +01:00
parent 47a542ea89
commit 6ead35f189
2 changed files with 105 additions and 101 deletions
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11
doc/03-cli.md
View File

@ -269,11 +269,20 @@ command. It will replace your `composer.phar` with the latest version.
$ php composer.phar self-update
If you would like to instead update to a specific release simply specify it:
$ composer self-update 1.0.0-alpha7
If you have installed composer for your entire system (see [global installation](00-intro.md#globally)),
you have to run the command with `root` privileges
you may have to run the command with `root` privileges
$ sudo composer self-update
### Options
* **--rollback (-r):** Rollback to the last version you had installed.
* **--clean-backups:** Delete old backups during an update. This makes the current version of composer the only backup available after the update.
## config
The `config` command allows you to edit some basic composer settings in either

195
src/Composer/Command/SelfUpdateCommand.php
View File

@ -19,32 +19,19 @@ use Composer\Util\RemoteFilesystem;
use Composer\Downloader\FilesystemException;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Output\OutputInterface;
/**
* @author Igor Wiedler <igor@wiedler.ch>
* @author Kevin Ran <kran@adobe.com>
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class SelfUpdateCommand extends Command
{
const ROLLBACK = 'rollback';
const CLEAN_ROLLBACKS = 'clean-rollbacks';
const HOMEPAGE = 'getcomposer.org';
const OLD_INSTALL_EXT = '-old.phar';
protected $remoteFS;
protected $latestVersion;
protected $homepageURL;
protected $localFilename;
public function __construct($name = null)
{
parent::__construct($name);
$protocol = (extension_loaded('openssl') ? 'https' : 'http') . '://';
$this->homepageURL = $protocol . self::HOMEPAGE;
$this->remoteFS = new RemoteFilesystem($this->getIO());
$this->localFilename = realpath($_SERVER['argv'][0]) ?: $_SERVER['argv'][0];
}
protected function configure()
{
$this
@ -52,8 +39,9 @@ class SelfUpdateCommand extends Command
->setAliases(array('selfupdate'))
->setDescription('Updates composer.phar to the latest version.')
->setDefinition(array(
new InputOption(self::ROLLBACK, 'r', InputOption::VALUE_NONE, 'Revert to an older installation of composer'),
new InputOption(self::CLEAN_ROLLBACKS, null, InputOption::VALUE_NONE, 'Delete old snapshots during an update. This makes the current version of composer the only rollback snapshot after the update')
new InputOption('rollback', 'r', InputOption::VALUE_NONE, 'Revert to an older installation of composer'),
new InputOption('clean-backups', null, InputOption::VALUE_NONE, 'Delete old backups during an update. This makes the current version of composer the only backup available after the update'),
new InputArgument('version', InputArgument::OPTIONAL, 'The version to update to'),
))
->setHelp(<<<EOT
The <info>self-update</info> command checks getcomposer.org for newer
@ -68,122 +56,140 @@ EOT
protected function execute(InputInterface $input, OutputInterface $output)
{
$baseUrl = (extension_loaded('openssl') ? 'https' : 'http') . '://' . self::HOMEPAGE;
$remoteFilesystem = new RemoteFilesystem($this->getIO());
$config = Factory::createConfig();
$cacheDir = rtrim($config->get('cache-dir'), '/');
$cacheDir = $config->get('cache-dir');
$rollbackDir = $config->get('home');
$localFilename = realpath($_SERVER['argv'][0]) ?: $_SERVER['argv'][0];
// Check if current dir is writable and if not try the cache dir from settings
$tmpDir = is_writable(dirname($this->localFilename))? dirname($this->localFilename) : $cacheDir;
// 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 "'.$tmpDir.'" directory used to download the temp file could not be written');
}
if (!is_writable($this->localFilename)) {
throw new FilesystemException('Composer update failed: the "'.$this->localFilename.'" file could not be written');
if (!is_writable($localFilename)) {
throw new FilesystemException('Composer update failed: the "'.$localFilename.'" file could not be written');
}
$rollbackVersion = false;
$rollbackDir = rtrim($config->get('home'), '/');
// rollback specified, get last phar
if ($input->getOption(self::ROLLBACK)) {
$rollbackVersion = $this->getLastVersion($rollbackDir);
if (!$rollbackVersion) {
throw new FilesystemException('Composer rollback failed: no installation to roll back to in "'.$rollbackDir.'"');
}
if ($input->getOption('rollback')) {
return $this->rollback($output, $rollbackDir, $localFilename);
}
// if a rollback version is specified, check for permissions and rollback installation
if ($rollbackVersion) {
if (!is_writable($rollbackDir)) {
throw new FilesystemException('Composer rollback failed: the "'.$rollbackDir.'" dir could not be written to');
}
$latestVersion = trim($remoteFilesystem->getContents(self::HOMEPAGE, $baseUrl. '/version', false));
$updateVersion = $input->getArgument('version') ?: $latestVersion;
$old = $rollbackDir . '/' . $rollbackVersion . self::OLD_INSTALL_EXT;
if (preg_match('{^[0-9a-f]{40}$}', $updateVersion) && $updateVersion !== $latestVersion) {
$output->writeln('<error>You can not update to a specific SHA-1 as those phars are not available for download</error>');
if (!is_file($old)) {
throw new FilesystemException('Composer rollback failed: "'.$old.'" could not be found');
}
if (!is_readable($old)) {
throw new FilesystemException('Composer rollback failed: "'.$old.'" could not be read');
}
return 1;
}
$updateVersion = ($rollbackVersion)? $rollbackVersion : $this->getLatestVersion();
if (Composer::VERSION === $updateVersion) {
$output->writeln('<info>You are already using composer version '.$updateVersion.'.</info>');
return 0;
}
$tempFilename = $tmpDir . '/' . basename($this->localFilename, '.phar').'-temp.phar';
$backupFile = ($rollbackVersion)? false : $rollbackDir . '/' . Composer::VERSION . self::OLD_INSTALL_EXT;
$tempFilename = $tmpDir . '/' . basename($localFilename, '.phar').'-temp.phar';
$backupFile = sprintf(
'%s/%s-%s%s',
$rollbackDir,
strtr(Composer::RELEASE_DATE, ' :', '_-'),
preg_replace('{^([0-9a-f]{7})[0-9a-f]{33}$}', '$1', Composer::VERSION),
self::OLD_INSTALL_EXT
);
if ($rollbackVersion) {
rename($rollbackDir . "/{$rollbackVersion}" . self::OLD_INSTALL_EXT, $tempFilename);
$output->writeln(sprintf("Rolling back to cached version <info>%s</info>.", $rollbackVersion));
} else {
$endpoint = ($updateVersion === $this->getLatestVersion()) ? '/composer.phar' : "/download/{$updateVersion}/composer.phar";
$remoteFilename = $this->homepageURL . $endpoint;
$output->writeln(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, $tempFilename);
if (!file_exists($tempFilename)) {
$output->writeln('<error>The download of the new composer version failed for an unexpected reason');
$output->writeln(sprintf("Updating to version <info>%s</info>.", $updateVersion));
return 1;
}
$this->remoteFS->copy(self::HOMEPAGE, $remoteFilename, $tempFilename);
// remove saved installations of composer
if ($input->getOption('clean-backups')) {
$files = $this->getOldInstallationFiles($rollbackDir);
// @todo: handle snapshot versions not being found!
if (!file_exists($tempFilename)) {
$output->writeln('<error>The download of the new composer version failed for an unexpected reason');
if (!empty($files)) {
$fs = new Filesystem;
return 1;
}
// remove saved installations of composer
if ($input->getOption(self::CLEAN_ROLLBACKS)) {
$files = $this->getOldInstallationFiles($rollbackDir);
if (!empty($files)) {
$fs = new Filesystem;
foreach ($files as $file) {
$output->writeln('<info>Removing: '.$file);
$fs->remove($file);
}
foreach ($files as $file) {
$output->writeln('<info>Removing: '.$file);
$fs->remove($file);
}
}
}
if ($err = $this->setLocalPhar($tempFilename, $backupFile)) {
if ($err = $this->setLocalPhar($localFilename, $tempFilename, $backupFile)) {
$output->writeln('<error>The file is corrupted ('.$err->getMessage().').</error>');
$output->writeln('<error>Please re-run the self-update command to try again.</error>');
return 1;
}
if ($backupFile) {
$output->writeln('<info>Saved rollback snapshot '.$backupFile);
if (file_exists($backupFile)) {
$output->writeln('Use <info>composer self-update --rollback</info> to return to version '.Composer::VERSION);
} else {
$output->writeln('<warning>A backup of the current version could not be written to '.$backupFile.', no rollback possible</warning>');
}
}
protected function setLocalPhar($filename, $backupFile)
protected function rollback(OutputInterface $output, $rollbackDir, $localFilename)
{
$rollbackVersion = $this->getLastBackupVersion($rollbackDir);
if (!$rollbackVersion) {
throw new \UnexpectedValueException('Composer rollback failed: no installation to roll back to in "'.$rollbackDir.'"');
}
if (!is_writable($rollbackDir)) {
throw new FilesystemException('Composer rollback failed: the "'.$rollbackDir.'" dir could not be written to');
}
$old = $rollbackDir . '/' . $rollbackVersion . self::OLD_INSTALL_EXT;
if (!is_file($old)) {
throw new FilesystemException('Composer rollback failed: "'.$old.'" could not be found');
}
if (!is_readable($old)) {
throw new FilesystemException('Composer rollback failed: "'.$old.'" could not be read');
}
$oldFile = $rollbackDir . "/{$rollbackVersion}" . self::OLD_INSTALL_EXT;
$output->writeln(sprintf("Rolling back to version <info>%s</info>.", $rollbackVersion));
if ($err = $this->setLocalPhar($localFilename, $oldFile)) {
$output->writeln('<error>The backup file was corrupted ('.$err->getMessage().') and has been removed.</error>');
return 1;
}
return 0;
}
protected function setLocalPhar($localFilename, $newFilename, $backupTarget = null)
{
try {
@chmod($filename, 0777 & ~umask());
@chmod($newFilename, 0777 & ~umask());
// test the phar validity
$phar = new \Phar($filename);
$phar = new \Phar($newFilename);
// free the variable to unlock the file
unset($phar);
// copy current file into installations dir
if ($backupFile) {
copy($this->localFilename, $backupFile);
if ($backupTarget && file_exists($localFilename)) {
@copy($localFilename, $backupTarget);
}
unset($phar);
rename($filename, $this->localFilename);
rename($newFilename, $localFilename);
} catch (\Exception $e) {
@unlink($filename);
if ($backupTarget) {
@unlink($newFilename);
}
if (!$e instanceof \UnexpectedValueException && !$e instanceof \PharException) {
throw $e;
}
@ -192,31 +198,20 @@ EOT
}
}
protected function getLastVersion($rollbackDir)
protected function getLastBackupVersion($rollbackDir)
{
$files = $this->getOldInstallationFiles($rollbackDir);
if (empty($files)) {
return false;
}
$fileTimes = array_map('filemtime', $files);
$map = array_combine($fileTimes, $files);
$latest = max($fileTimes);
return basename($map[$latest], self::OLD_INSTALL_EXT);
sort($files);
return basename(end($files), self::OLD_INSTALL_EXT);
}
protected function getOldInstallationFiles($rollbackDir)
{
return glob($rollbackDir . '/*' . self::OLD_INSTALL_EXT);
}
protected function getLatestVersion()
{
if (!$this->latestVersion) {
$this->latestVersion = trim($this->remoteFS->getContents(self::HOMEPAGE, $this->homepageURL. '/version', false));
}
return $this->latestVersion;
return glob($rollbackDir . '/*' . self::OLD_INSTALL_EXT) ?: array();
}
}