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<?php |
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declare(strict_types=1); |
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namespace Enjoys\Dotenv; |
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use Enjoys\Dotenv\Exception\InvalidArgumentException; |
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final class Variables |
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{ |
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public function __construct(private Dotenv $dotenv) |
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{ |
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} |
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public static function scalarValueToString(string|bool|int|float|null $value): string |
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{ |
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if (gettype($value) === 'boolean') { |
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return $value ? 'true' : 'false'; |
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} |
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return (string)$value; |
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} |
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public function resolve(string $key, ?string $value): ?string |
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{ |
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if ($value === null) { |
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return null; |
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} |
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$result = preg_replace_callback( |
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'/(\${(?<variable>.+?)(?<default_value>:[-=?][^}]*)?})/', |
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function (array $matches): string { |
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$env = getenv($matches['variable']) !== false ? getenv($matches['variable']) : null; |
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/** @var string|bool|int|float|null $val */ |
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$val = |
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$env ?? |
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$this->dotenv->getEnvCollection()->get($matches['variable']) ?? |
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$this->dotenv->getEnvRawArray()[$matches['variable']] ?? |
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(($matches['default_value'] ?? null) !== null |
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? $this->resolveDefaultValue( |
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$matches['default_value'], |
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$matches['variable'] |
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) : null) |
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?? ''; |
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return self::scalarValueToString($val); |
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}, |
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$value, |
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flags: PREG_UNMATCHED_AS_NULL |
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); |
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if (preg_match('/(\${(.+?)})/', $result ?? '')) { |
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return $this->resolve($key, $result); |
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} |
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return $result; |
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} |
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private function resolveDefaultValue(string $default_value, string $variable): string |
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{ |
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$value = substr($default_value, 2); |
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if ('?' === $default_value[1]) { |
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throw new InvalidArgumentException(sprintf('Not set variable ${%s}. %s', $variable, $value)); |
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} |
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if ('=' === $default_value[1]) { |
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$this->dotenv->populate( |
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$variable, |
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$value, |
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); |
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} |
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return $value; |
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} |
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} |
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Enjoyzz /
dotenv
