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<?php
namespace Cake\Composer\Installer;
use Composer\Composer;
use Composer\Installer\LibraryInstaller;
use Composer\IO\IOInterface;
use Composer\Package\PackageInterface;
use Composer\Repository\InstalledRepositoryInterface;
use Composer\Script\Event;
use Composer\Util\Filesystem;
use RuntimeException;
class PluginInstaller extends LibraryInstaller
{
/**
* A flag to check usage - once
*
* @var bool
*/
protected static $checkUsage = true;
/**
* Check usage upon construction
*
* @param IOInterface $io composer object
* @param Composer $composer composer object
* @param string $type what are we loading
* @param Filesystem $filesystem composer object
*/
public function __construct(IOInterface $io, Composer $composer, $type = 'library', Filesystem $filesystem = null)
{
parent::__construct($io, $composer, $type, $filesystem);
$this->checkUsage($composer);
}
/**
* Check that the root composer.json file use the post-autoload-dump hook
*
* If not, warn the user they need to update their application's composer file.
* Do nothing if the main project is not a project (if it's a plugin in development).
*
* @param Composer $composer object
* @return void
*/
public function checkUsage(Composer $composer)
{
if (static::$checkUsage === false) {
return;
}
static::$checkUsage = false;
$package = $composer->getPackage();
if (!$package || $package->getType() !== 'project') {
return;
}
$scripts = $composer->getPackage()->getScripts();
$postAutoloadDump = 'Cake\Composer\Installer\PluginInstaller::postAutoloadDump';
if (!isset($scripts['post-autoload-dump']) ||
!in_array($postAutoloadDump, $scripts['post-autoload-dump'])
) {
$this->warnUser(
'Action required!',
'The CakePHP plugin installer has been changed, please update your' .
' application composer.json file to add the post-autoload-dump hook.' .
' See the changes in https://github.com/cakephp/app/pull/216 for more' .
' info.'
);
}
}
/**
* Warn the developer of action they need to take
*
* @param string $title Warning title
* @param string $text warning text
*
* @return void
*/
public function warnUser($title, $text)
{
$wrap = function ($text, $width = 75) {
return '<error> ' . str_pad($text, $width) . '</error>';
};
$messages = [
'',
'',
$wrap(''),
$wrap($title),
$wrap(''),
];
$lines = explode("\n", wordwrap($text, 68));
foreach ($lines as $line) {
$messages[] = $wrap($line);
}
$messages = array_merge($messages, [$wrap(''), '', '']);
$this->io->write($messages);
}
/**
* Called whenever composer (re)generates the autoloader
*
* Recreates CakePHP's plugin path map, based on composer information
* and available app-plugins.
*
* @param Event $event the composer event object
* @return void
*/
public static function postAutoloadDump(Event $event)
{
$composer = $event->getComposer();
$config = $composer->getConfig();
$vendorDir = realpath($config->get('vendor-dir'));
$packages = $composer->getRepositoryManager()->getLocalRepository()->getPackages();
$extra = $event->getComposer()->getPackage()->getExtra();
if (empty($extra['plugin-paths'])) {
$pluginsDir = dirname($vendorDir) . DIRECTORY_SEPARATOR . 'plugins';
} else {
$pluginsDir = $extra['plugin-paths'];
}
$plugins = static::determinePlugins($packages, $pluginsDir, $vendorDir);
$configFile = static::_configFile($vendorDir);
static::writeConfigFile($configFile, $plugins);
}
/**
* Find all plugins available
*
* Add all composer packages of type cakephp-plugin, and all plugins located
* in the plugins directory to a plugin-name indexed array of paths
*
* @param array $packages an array of \Composer\Package\PackageInterface objects
* @param string|array $pluginsDir the path to the plugins dir
* @param string $vendorDir the path to the vendor dir
* @return array plugin-name indexed paths to plugins
*/
public static function determinePlugins($packages, $pluginsDir = 'plugins', $vendorDir = 'vendor')
{
$plugins = [];
foreach ($packages as $package) {
if ($package->getType() !== 'cakephp-plugin') {
continue;
}
$ns = static::primaryNamespace($package);
$path = $vendorDir . DIRECTORY_SEPARATOR . $package->getPrettyName();
$plugins[$ns] = $path;
}
foreach ((array)$pluginsDir as $path) {
$path = static::fullpath($path, $vendorDir);
if (is_dir($path)) {
$dir = new \DirectoryIterator($path);
foreach ($dir as $info) {
if (!$info->isDir() || $info->isDot()) {
continue;
}
$name = $info->getFilename();
if ($name{0} === '.') {
continue;
}
$plugins[$name] = $path . DIRECTORY_SEPARATOR . $name;
}
}
}
ksort($plugins);
return $plugins;
}
/**
* Turns relative paths in full paths.
*
* @param string $path Path
* @param string $vendorDir The path to the vendor dir
* @return string
*/
protected static function fullpath($path, $vendorDir)
{
if (preg_match('{^(?:/|[a-z]:|[a-z0-9.]+://)}i', $path)) {
return rtrim($path, '/');
}
if (substr($path, 0, 2) === './') {
$path = substr($path, 2);
}
return rtrim(dirname($vendorDir) . DIRECTORY_SEPARATOR . $path);
}
/**
* Rewrite the config file with a complete list of plugins
*
* @param string $configFile the path to the config file
* @param array $plugins of plugins
* @param string|null $root The root directory. Defaults to a value generated from $configFile
* @return void
*/
public static function writeConfigFile($configFile, $plugins, $root = null)
{
$root = $root ?: dirname(dirname($configFile));
$data = [];
foreach ($plugins as $name => $pluginPath) {
// Normalize to *nix paths.
$pluginPath = str_replace('\\', '/', $pluginPath);
$pluginPath .= '/';
$pluginPath = str_replace(
DIRECTORY_SEPARATOR . DIRECTORY_SEPARATOR,
DIRECTORY_SEPARATOR,
$pluginPath
);
// Namespaced plugins should use /
$name = str_replace('\\', '/', $name);
$data[] = sprintf(" '%s' => '%s'", $name, $pluginPath);
}
$data = implode(",\n", $data);
$contents = <<<'PHP'
<?php
$baseDir = dirname(dirname(__file__));
return [
'plugins' => [
%s
]
];
PHP;
$contents = sprintf($contents, $data);
// Gross hacks to work around composer smashing `__FILE__` in this
// PHP file when it runs the code through eval()
$uppercase = function ($matches) {
return strtoupper($matches[0]);
};
$contents = preg_replace_callback('/__file__/', $uppercase, $contents);
$root = str_replace(
DIRECTORY_SEPARATOR . DIRECTORY_SEPARATOR,
DIRECTORY_SEPARATOR,
$root
);
// Normalize to *nix paths.
$root = str_replace('\\', '/', $root);
$contents = str_replace('\'' . $root, '$baseDir . \'', $contents);
file_put_contents($configFile, $contents);
}
/**
* Path to the plugin config file
*
* @param string $vendorDir path to composer-vendor dir
* @return string absolute file path
*/
protected static function _configFile($vendorDir)
{
return $vendorDir . DIRECTORY_SEPARATOR . 'cakephp-plugins.php';
}
/**
* Get the primary namespace for a plugin package.
*
* @param \Composer\Package\PackageInterface $package composer object
* @return string The package's primary namespace.
* @throws \RuntimeException When the package's primary namespace cannot be determined.
*/
public static function primaryNamespace($package)
{
$primaryNs = null;
$autoLoad = $package->getAutoload();
foreach ($autoLoad as $type => $pathMap) {
if ($type !== 'psr-4') {
continue;
}
$count = count($pathMap);
if ($count === 1) {
$primaryNs = key($pathMap);
break;
}
$matches = preg_grep('#^(\./)?src/?$#', $pathMap);
if ($matches) {
$primaryNs = key($matches);
break;
}
foreach (['', '.'] as $path) {
$key = array_search($path, $pathMap, true);
if ($key !== false) {
$primaryNs = $key;
}
}
break;
}
if (!$primaryNs) {
throw new RuntimeException(
sprintf(
"Unable to get primary namespace for package %s." .
"\nEnsure you have added proper 'autoload' section to your plugin's config" .
" as stated in README on https://github.com/cakephp/plugin-installer",
$package->getName()
)
);
}
return trim($primaryNs, '\\');
}
/**
* Decides if the installer supports the given type.
*
* This installer only supports package of type 'cakephp-plugin'.
*
* @return bool
*/
public function supports($packageType)
{
return 'cakephp-plugin' === $packageType;
}
/**
* Installs specific plugin.
*
* After the plugin is installed, app's `cakephp-plugins.php` config file is updated with
* plugin namespace to path mapping.
*
* @param \Composer\Repository\InstalledRepositoryInterface $repo Repository in which to check.
* @param \Composer\Package\PackageInterface $package Package instance.
* @deprecated superceeded by the post-autoload-dump hook
*/
public function install(InstalledRepositoryInterface $repo, PackageInterface $package)
{
parent::install($repo, $package);
$path = $this->getInstallPath($package);
$ns = static::primaryNamespace($package);
$this->updateConfig($ns, $path);
}
/**
* Updates specific plugin.
*
* After the plugin is installed, app's `cakephp-plugins.php` config file is updated with
* plugin namespace to path mapping.
*
* @param \Composer\Repository\InstalledRepositoryInterface $repo Repository in which to check.
* @param \Composer\Package\PackageInterface $initial Already installed package version.
* @param \Composer\Package\PackageInterface $target Updated version.
* @deprecated superceeded by the post-autoload-dump hook
*
* @throws \InvalidArgumentException if $initial package is not installed
*/
public function update(InstalledRepositoryInterface $repo, PackageInterface $initial, PackageInterface $target)
{
parent::update($repo, $initial, $target);
$ns = static::primaryNamespace($initial);
$this->updateConfig($ns, null);
$path = $this->getInstallPath($target);
$ns = static::primaryNamespace($target);
$this->updateConfig($ns, $path);
}
/**
* Uninstalls specific package.
*
* @param \Composer\Repository\InstalledRepositoryInterface $repo Repository in which to check.
* @param \Composer\Package\PackageInterface $package Package instance.
* @deprecated superceeded by the post-autoload-dump hook
*/
public function uninstall(InstalledRepositoryInterface $repo, PackageInterface $package)
{
parent::uninstall($repo, $package);
$path = $this->getInstallPath($package);
$ns = static::primaryNamespace($package);
$this->updateConfig($ns, null);
}
/**
* Update the plugin path for a given package.
*
* @param string $name The plugin name being installed.
* @param string $path The path, the plugin is being installed into.
*/
public function updateConfig($name, $path)
{
$name = str_replace('\\', '/', $name);
$configFile = static::_configFile($this->vendorDir);
$this->_ensureConfigFile($configFile);
$return = include $configFile;
if (is_array($return) && empty($config)) {
$config = $return;
}
if (!isset($config)) {
$this->io->write(
'ERROR - `vendor/cakephp-plugins.php` file is invalid. ' .
'Plugin path configuration not updated.'
);
return;
}
if (!isset($config['plugins'])) {
$config['plugins'] = [];
}
if ($path == null) {
unset($config['plugins'][$name]);
} else {
$config['plugins'][$name] = $path;
}
$root = dirname($this->vendorDir);
static::writeConfigFile($configFile, $config['plugins'], $root);
}
/**
* Ensure that the vendor/cakephp-plugins.php file exists.
*
* If config/plugins.php is found - copy it to the vendor folder
*
* @param string $path the config file path.
* @return void
*/
protected function _ensureConfigFile($path)
{
if (file_exists($path)) {
if ($this->io->isVerbose()) {
$this->io->write('vendor/cakephp-plugins.php exists.');
}
return;
}
$oldPath = dirname(dirname($path)) . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'plugins.php';
if (file_exists($oldPath)) {
copy($oldPath, $path);
if ($this->io->isVerbose()) {
$this->io->write('config/plugins.php found and copied to vendor/cakephp-plugins.php.');
}
return;
}
if (!is_dir(dirname($path))) {
mkdir(dirname($path));
}
$root = dirname($this->vendorDir);
static::writeConfigFile($path, [], $root);
if ($this->io->isVerbose()) {
$this->io->write('Created vendor/cakephp-plugins.php');
}
}
}