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<?php |
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namespace Karma\Configuration\Parser; |
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class VariableParser extends AbstractSectionParser |
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{ |
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use \Karma\Configuration\FilterInputVariable; |
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const |
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ASSIGNMENT = '=', |
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ENV_SEPARATOR = ',', |
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DEFAULT_ENV = 'default'; |
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private |
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$currentVariable, |
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$variables, |
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$valueFound; |
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public function __construct() |
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{ |
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$this->currentVariable = null; |
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$this->variables = array(); |
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$this->valueFound = false; |
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} |
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protected function parseLine($line) |
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{ |
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if($this->isACommentLine($line)) |
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{ |
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return true; |
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} |
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$variableName = $this->extractVariableName($line); |
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if($variableName !== null) |
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{ |
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return $this->changeCurrentVariable($variableName); |
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} |
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$this->parseEnvironmentValue($line); |
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} |
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private function extractVariableName($line) |
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{ |
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$variableName = null; |
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if(preg_match('~(?P<variableName>[^:]+):$~', $line, $matches)) |
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{ |
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$variableName = trim($matches['variableName']); |
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} |
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return $variableName; |
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} |
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private function checkCurrentVariableState() |
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{ |
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if($this->currentVariable !== null && $this->valueFound === false) |
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{ |
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$this->triggerError(sprintf( |
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'Variable %s has no value (declared in file %s line %d)', |
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$this->currentVariable, |
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$this->variables[$this->currentVariable]['file'], |
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$this->variables[$this->currentVariable]['line'] |
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)); |
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} |
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} |
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private function changeCurrentVariable($variableName) |
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{ |
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$this->checkCurrentVariableState(); |
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$this->currentVariable = $variableName; |
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if(isset($this->variables[$this->currentVariable])) |
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{ |
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$this->triggerError(sprintf( |
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'Variable %s is already declared (in %s line %d)', |
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$this->currentVariable, |
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$this->variables[$this->currentVariable]['file'], |
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$this->variables[$this->currentVariable]['line'] |
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)); |
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} |
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$this->variables[$this->currentVariable] = array( |
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'env' => array(), |
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'file' => $this->currentFilePath, |
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'line' => $this->currentLineNumber, |
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); |
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$this->valueFound = false; |
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} |
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private function parseEnvironmentValue($line) |
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{ |
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if($this->currentVariable === null) |
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{ |
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$this->triggerError('Missing variable name'); |
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} |
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if(substr_count($line, self::ASSIGNMENT) < 1) |
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{ |
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$this->triggerError("line must contains = ($line)"); |
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} |
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list($envList, $value) = explode(self::ASSIGNMENT, $line, 2); |
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$environments = array_map('trim', explode(self::ENV_SEPARATOR, $envList)); |
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$value = $this->parseList($value); |
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$value = $this->filterValue($value); |
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foreach($environments as $environment) |
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{ |
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if(array_key_exists($environment, $this->variables[$this->currentVariable]['env'])) |
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{ |
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$this->triggerError("Duplicated value for environment $environment and variable $this->currentVariable"); |
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} |
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$this->variables[$this->currentVariable]['env'][$environment] = $value; |
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} |
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$this->valueFound = true; |
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} |
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public function getVariables() |
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{ |
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return $this->variables; |
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} |
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public function setCurrentFile($filePath) |
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{ |
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parent::setCurrentFile($filePath); |
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$this->currentVariable = null; |
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} |
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public function endOfFileCheck() |
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{ |
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$this->checkCurrentVariableState(); |
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} |
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} |
Niktux /
karma
Only declaring a single property per statement allows you to later on add doc comments more easily.
It is also recommended by PSR2, so it is a common style that many people expect.