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<?php |
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namespace Enzyme\Axiom\Console; |
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use Enzyme\Parrot\File; |
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use Symfony\Component\Yaml\Parser; |
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use Symfony\Component\Yaml\Exception\ParseException; |
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class Config |
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{ |
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/** |
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* Reference to the Symfony YAML parser. |
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* |
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* @var Symfony\Component\Yaml\Parser |
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*/ |
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protected $parser; |
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/** |
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* Reference to a parrot file wrapper. |
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* |
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* @var Enzyme\Parrot\File |
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*/ |
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protected $file_dispatch; |
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/** |
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* The local configuration store. |
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* |
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* @var array |
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*/ |
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protected $store; |
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/** |
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* The parsed YAML configuration. |
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* |
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* @var array |
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*/ |
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protected $config; |
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/** |
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* Create a new configuration manager. |
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* |
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* @param Parser $parser |
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* @param File $file_dispatch |
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*/ |
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public function __construct(Parser $parser, File $file_dispatch) |
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{ |
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$this->parser = $parser; |
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$this->file_dispatch = $file_dispatch; |
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$this->store = []; |
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} |
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/** |
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* Parse the given YAML file. |
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* |
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* @param string $file The path to the file. |
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*/ |
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public function parse($file) |
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{ |
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if (false === $this->file_dispatch->exists($file)) { |
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return; |
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} |
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try { |
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$this->config = $this->parser->parse( |
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$this->file_dispatch->getContents($file) |
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); |
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} catch (ParseException $e) { |
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throw new InvalidArgumentException( |
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"The yaml configuration file [$file] is invalid." |
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); |
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} |
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} |
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/** |
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* Get the value associated with the given key, if the key does not |
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* exist, return null. |
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* |
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* @param string $key |
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* |
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* @return null|string |
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*/ |
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public function get($key) |
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{ |
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return $this->dotGet($this->config, $key); |
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} |
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/** |
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* This funky little method will get the value from a multidimensional |
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* array using a dot-path notation. Eg: 'foo.bar' will return the value 'ok' |
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* from the example array below. If the key cannot be found, it will return |
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* null instead. |
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* $arr = [ |
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* 'foo' => [ |
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* 'bar' => 'ok' |
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* ] |
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* ]; |
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* |
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* @param array $array |
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* @param string $path |
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* |
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* @return null|mixed |
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*/ |
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protected function dotGet(array $array, $path) |
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{ |
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$parts = explode('.', $path); |
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$top = count($parts) - 1; |
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$current = $array; |
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$index = 0; |
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foreach ($array as $key => $value) { |
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// If we have only one path item left and this array key matches |
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// it, let's immediately return its value. |
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if ($key === $parts[0] && $index === $top) { |
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return $value; |
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} |
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// If this array key matches the path item we're currently on, |
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// let's dig in deeper and hope to find the full path. |
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if ($key === $parts[0]) { |
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// The next iteration will continue on the next available path |
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// item chain. Eg: if we were on 'foo.bar.xzy', we'll be passing |
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// in 'bar.xyz' to the recursive call. |
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$new_path = array_slice($parts, 1); |
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$new_path = implode('.', $new_path); |
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return $this->dotGet($value, $new_path, 1); |
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} |
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// If we're currently sitting on a numerical key, let's dig in |
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// deeper in hopes to find some string keys to work with. |
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if (true === is_int($key)) { |
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// Keep our current path chain. |
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$new_path = implode('.', $parts); |
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$hit = $this->dotGet($value, $new_path, 1); |
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// If we found a match futher down the rabbit hole, let's |
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// return that value here, otherwise let's do another iteration. |
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if (null !== $hit) { |
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return $hit; |
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} |
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} |
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} |
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return null; |
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} |
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} |
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Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..