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<?php
/*
* 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;
/**
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class Config
{
public static $defaultConfig = array(
'process-timeout' => 300,
'vendor-dir' => 'vendor',
'bin-dir' => '{$vendor-dir}/bin',
'notify-on-install' => true,
'github-protocols' => array('git', 'https', 'http'),
'github-domains' => array('github.com'),
);
public static $defaultRepositories = array(
'packagist' => array(
'type' => 'composer',
'url' => 'http://packagist.org',
)
);
private $config;
private $repositories;
public function __construct()
{
// load defaults
$this->config = static::$defaultConfig;
$this->repositories = static::$defaultRepositories;
}
/**
* Merges new config values with the existing ones (overriding)
*
* @param array $config
*/
public function merge(array $config)
{
// override defaults with given config
if (!empty($config['config']) && is_array($config['config'])) {
$this->config = array_replace_recursive($this->config, $config['config']);
}
if (!empty($config['repositories']) && is_array($config['repositories'])) {
$this->repositories = array_reverse($this->repositories, true);
$newRepos = array_reverse($config['repositories'], true);
foreach ($newRepos as $name => $repository) {
// disable a repository by name
if (false === $repository) {
unset($this->repositories[$name]);
continue;
}
// disable a repository with an anonymous {"name": false} repo
if (1 === count($repository) && false === current($repository)) {
unset($this->repositories[key($repository)]);
continue;
}
// store repo
if (is_int($name)) {
$this->repositories[] = $repository;
} else {
$this->repositories[$name] = $repository;
}
}
$this->repositories = array_reverse($this->repositories, true);
}
}
/**
* @return array
*/
public function getRepositories()
{
return $this->repositories;
}
/**
* Returns a setting
*
* @param string $key
* @return mixed
*/
public function get($key)
{
switch ($key) {
case 'vendor-dir':
case 'bin-dir':
case 'process-timeout':
// convert foo-bar to COMPOSER_FOO_BAR and check if it exists since it overrides the local config
$env = 'COMPOSER_' . strtoupper(strtr($key, '-', '_'));
return rtrim($this->process(getenv($env) ?: $this->config[$key]), '/\\');
case 'home':
return rtrim($this->process($this->config[$key]), '/\\');
default:
return $this->process($this->config[$key]);
}
}
/**
* Checks whether a setting exists
*
* @param string $key
* @return bool
*/
public function has($key)
{
return array_key_exists($key, $this->config);
}
/**
* Replaces {$refs} inside a config string
*
* @param string a config string that can contain {$refs-to-other-config}
* @return string
*/
private function process($value)
{
$config = $this;
return preg_replace_callback('#\{\$(.+)\}#', function ($match) use ($config) {
return $config->get($match[1]);
}, $value);
}
}
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