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<?php |
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/* this file is part of pipelines */ |
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namespace Ktomk\Pipelines\Yaml; |
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use Ktomk\Pipelines\ErrorCatcher; |
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class LibYaml implements ParserInterface |
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{ |
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/** |
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* @return bool |
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*/ |
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public static function isAvailable() |
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{ |
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return extension_loaded('yaml') && function_exists('yaml_parse'); |
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} |
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/** |
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* @param string $path |
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* |
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* @throws ParseException |
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* |
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* @return array |
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*/ |
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public function parseFile($path) |
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{ |
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return Yaml::fileDelegate($path, array($this, 'parseBuffer')); |
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} |
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/** |
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* @param string $path |
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* |
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* @return null|array |
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*/ |
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public function tryParseFile($path) |
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{ |
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return Yaml::fileDelegate($path, array($this, 'tryParseBuffer')); |
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} |
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/** |
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* @param string $buffer |
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* |
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* @throws ParseException |
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* |
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* @return array |
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*/ |
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public function parseBuffer($buffer) |
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{ |
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if (!function_exists('yaml_parse')) { |
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// @codeCoverageIgnoreStart |
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throw new \BadMethodCallException('LibYaml based parsing n/a, is the PHP extension loaded?'); |
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// @codeCoverageIgnoreEnd |
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} |
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$error = ErrorCatcher::create(); |
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$result = yaml_parse($buffer, 0); |
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$result = $error->end() ? null : $result; |
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if (null === $result && null !== $message = $error->getLastErrorMessage()) { |
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throw new ParseException($message); |
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} |
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if (!is_array($result)) { |
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throw new ParseException('LibYaml invalid YAML parsing'); |
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} |
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# ext-yaml parser does aliases, remove any potential ones |
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return json_decode(json_encode($result), true); |
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} |
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/** |
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* @param string $buffer |
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* |
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* @return null|array |
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*/ |
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public function tryParseBuffer($buffer) |
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{ |
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try { |
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$result = $this->parseBuffer($buffer); |
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} catch (ParseException $ex) { |
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return null; |
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} |
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return $result; |
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} |
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} |
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ktomk /
pipelines
