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<?php |
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namespace Consolidation\Config\Util; |
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/** |
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* Fetch a configuration value from a configuration group. If the |
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* desired configuration value is not found in the most specific |
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* group named, keep stepping up to the next parent group until a |
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* value is located. |
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* |
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* Given the following constructor inputs: |
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* - $prefix = "command." |
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* - $group = "foo.bar.baz" |
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* - $postfix = ".options." |
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* Then the `get` method will then consider, in order: |
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* - command.foo.bar.baz.options |
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* - command.foo.bar.options |
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* - command.foo.options |
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* If any of these contain an option for "$key", then return its value. |
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*/ |
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abstract class ConfigGroup |
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{ |
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protected $config; |
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protected $group; |
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protected $prefix; |
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protected $postfix; |
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public function __construct($config, $group, $prefix = '', $postfix = '.') |
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{ |
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$this->config = $config; |
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$this->group = $group; |
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$this->prefix = $prefix; |
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$this->postfix = $postfix; |
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} |
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/** |
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* Return a description of the configuration group (with prefix and postfix). |
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*/ |
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public function describe($property) |
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{ |
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return $this->prefix . $this->group . $this->postfix . $property; |
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} |
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/** |
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* Get the requested configuration key from the most specific configuration |
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* group that contains it. |
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*/ |
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abstract public function get($key); |
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/** |
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* Given a group name, such as "foo.bar.baz", return the next configuration |
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* group in the fallback hierarchy, e.g. "foo.bar". |
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*/ |
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protected function moreGeneralGroupName($group) |
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{ |
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$result = preg_replace('#\.[^.]*$#', '', $group); |
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if ($result != $group) { |
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return $result; |
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} |
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return false; |
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} |
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} |
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consolidation /
config
