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<?php |
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declare(strict_types=1); |
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namespace Lib\Env; |
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use Lib\Env\Exception\EnvException; |
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use Lib\Env\Exception\PathException; |
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use Lib\Env\Parser\EnvParserInterface; |
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final class EnvVarsSetter |
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{ |
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public const ENV_DEV = 'dev'; |
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public const ENV_TEST = 'test'; |
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public const ENV_PROD = 'prod'; |
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private const DIST_EXT = '.dist'; |
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/** @var array */ |
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private $envVars; |
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/** @var EnvParserInterface */ |
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private $parser; |
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public function __construct(EnvParserInterface $parser) |
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{ |
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$this->parser = $parser; |
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} |
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/** |
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* @param string $path |
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* @param string $envVarName |
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* @param string $defaultEnv |
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* @param array $testEnvs |
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* @throws EnvException |
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*/ |
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public function loadEnv(string $path, string $envVarName = 'APP_ENV', string $defaultEnv = self::ENV_DEV, $testEnvs = [self::ENV_TEST]): void |
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{ |
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$env = $this->checkAppEnv($envVarName, $defaultEnv); |
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$this->loadDistOrNot($path); |
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if (!\in_array($env, $testEnvs, true) && file_exists($file = "$path.local")) { |
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$this->doLoad($file); |
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} |
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foreach (["$path.$env", "$path.$env.local"] as $file) { |
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if (file_exists($file)) { |
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$this->doLoad($file); |
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} |
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} |
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} |
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/** |
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* @param string $path |
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* @throws EnvException |
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*/ |
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public function doLoad(string $path) |
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{ |
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if (!is_readable($path) || is_dir($path)) { |
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throw new PathException(); |
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} |
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try { |
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$this->populate($path); |
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} catch (EnvException $e) { |
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throw $e; |
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} |
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} |
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private function checkAppEnv(string $envVarName, string $defaultEnv): string |
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{ |
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if (null === $env = $_SERVER[$envVarName] ?? $_ENV[$envVarName] ?? null) { |
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$this->envVars[$envVarName] = $env = $defaultEnv; |
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} |
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return $env; |
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} |
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private function loadDistOrNot(string $path): void |
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{ |
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$file = $path.self::DIST_EXT; |
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if (file_exists($path) && !file_exists($file)) { |
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$this->doLoad($path); |
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} elseif (file_exists($file)) { |
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$this->doLoad($file); |
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} |
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} |
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/** |
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* @param string $path |
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* @throws EnvException |
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*/ |
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private function populate(string $path): void |
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{ |
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$vars = $this->parser->parse(file_get_contents($path)); |
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$vars['APP_ROOT'] = getcwd(); |
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foreach ($vars as $varName => $value) { |
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$httpVar = 0 !== mb_strpos($varName, 'HTTP_'); |
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if (isset($_ENV[$varName]) || ($httpVar && isset($_SERVER[$varName]))) { |
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continue; |
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} |
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putenv("$varName=$value"); |
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$this->envVars[$varName] = $_ENV[$varName] = $value; |
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if ($httpVar) { |
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$_SERVER[$varName] = $value; |
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} |
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} |
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} |
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} |
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Tiriel /
MyBlog
