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<?php |
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/** |
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* @copyright (c) 2014-2017 brian ridley |
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* @author brian ridley <[email protected]> |
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* @license http://opensource.org/licenses/MIT MIT |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace ptlis\SemanticVersion\Version\Label; |
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use ptlis\SemanticVersion\Parse\Token; |
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/** |
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* Immutable builder for label instances. |
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*/ |
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final class LabelBuilder |
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{ |
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/** @var string */ |
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private $name; |
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/** @var int|null */ |
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private $version; |
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/** @var array Map of string encoded labels to label constants */ |
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private $labelMap = [ |
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'alpha' => Label::PRECEDENCE_ALPHA, |
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'beta' => Label::PRECEDENCE_BETA, |
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'rc' => Label::PRECEDENCE_RC |
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]; |
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/** |
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* Constructor. |
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* |
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* @param string $name |
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* @param int|null $version |
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*/ |
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public function __construct($name = '', $version = null) |
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{ |
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$this->name = $name; |
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$this->version = $version; |
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} |
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/** |
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* Set label name. |
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* |
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* @param string $name |
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* |
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* @return $this |
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*/ |
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public function setName($name) |
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{ |
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return new LabelBuilder( |
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$name, |
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$this->version |
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); |
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} |
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/** |
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* Set label version. |
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* |
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* @param int|null $version |
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* |
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* @return $this |
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*/ |
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public function setVersion($version) |
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{ |
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return new LabelBuilder( |
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$this->name, |
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$version |
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); |
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} |
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/** |
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* Build a label from the provided specification |
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* |
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* @return LabelInterface |
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*/ |
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public function build() |
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{ |
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// Default to miscellaneous 'dev' label |
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$label = new Label(Label::PRECEDENCE_DEV, $this->version, $this->name); |
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// No Label present or a dev label (these are a special-case for packagist branch versions - a version like |
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// 1.0.x-dev is equivalent to 1.0.* in conventional notation - there are additional semantics attached to this |
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// but they're not important for our purposes |
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if (!strlen($this->name) || 'dev' === $this->name) { |
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$label = new Label(Label::PRECEDENCE_ABSENT); |
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// Alpha, Beta & RC standard labels |
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} elseif (array_key_exists($this->name, $this->labelMap)) { |
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$label = new Label($this->labelMap[$this->name], $this->version); |
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} |
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return $label; |
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} |
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/** |
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* Build a label from a token list. |
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* |
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* @param Token[] $labelTokenList |
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* |
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* @return LabelInterface|null |
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*/ |
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public function buildFromTokens(array $labelTokenList) |
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{ |
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$label = $this->build(); |
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switch (count($labelTokenList)) { |
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// No label |
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case 0: |
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// Do Nothing |
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break; |
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// Version string part only |
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case 1: |
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$label = $this |
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->setName($labelTokenList[0]->getValue()) |
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->build(); |
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break; |
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// Label version |
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case 3: |
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$label = $this |
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->setName($labelTokenList[0]->getValue()) |
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->setVersion($labelTokenList[2]->getValue()) |
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->build(); |
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break; |
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default: |
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1 |
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throw new \RuntimeException('Invalid version'); |
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} |
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return $label; |
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} |
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} |
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ptlis /
semantic-version
