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<?php |
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/** |
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* Composer plugin for config assembling |
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* |
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* @link https://github.com/hiqdev/composer-config-plugin |
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* @package composer-config-plugin |
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* @license BSD-3-Clause |
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* @copyright Copyright (c) 2016-2018, HiQDev (http://hiqdev.com/) |
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*/ |
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namespace hiqdev\composer\config\utils; |
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use hiqdev\composer\config\exceptions\CircularDependencyException; |
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/** |
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* Resolver class. |
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* Reorders files according to their cross dependencies |
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* and resolves `$name` pathes. |
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* @author Andrii Vasyliev <[email protected]> |
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*/ |
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class Resolver |
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{ |
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protected $order = []; |
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protected $deps = []; |
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protected $following = []; |
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public function __construct(array $files) |
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{ |
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$this->files = $files; |
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$this->collectDeps(); |
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foreach (array_keys($this->files) as $name) { |
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$this->followDeps($name); |
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} |
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} |
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public function get() |
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{ |
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$result = []; |
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foreach ($this->order as $name) { |
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$result[$name] = $this->resolveDeps($this->files[$name]); |
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} |
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return $result; |
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} |
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protected function resolveDeps(array $paths) |
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{ |
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foreach ($paths as &$path) { |
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$dep = $this->isDep($path); |
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if ($dep) { |
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$path = Builder::path($dep); |
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} |
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} |
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return $paths; |
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} |
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protected function followDeps($name) |
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{ |
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if (isset($this->order[$name])) { |
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return; |
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} |
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if (isset($this->following[$name])) { |
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throw new CircularDependencyException($name . ' ' . implode(',', $this->following)); |
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} |
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$this->following[$name] = $name; |
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if (isset($this->deps[$name])) { |
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foreach ($this->deps[$name] as $dep) { |
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$this->followDeps($dep); |
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} |
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} |
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$this->order[$name] = $name; |
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unset($this->following[$name]); |
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} |
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protected function collectDeps() |
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{ |
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foreach ($this->files as $name => $paths) { |
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foreach ($paths as $path) { |
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$dep = $this->isDep($path); |
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if ($dep) { |
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if (!isset($this->deps[$name])) { |
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$this->deps[$name] = []; |
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} |
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$this->deps[$name][$dep] = $dep; |
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} |
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} |
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} |
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} |
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protected function isDep($path) |
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{ |
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return 0 === strncmp($path, '$', 1) ? substr($path, 1) : false; |
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} |
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} |
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hiqdev /
composer-config-plugin
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