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<?php |
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namespace Spatie\ImageOptimizer; |
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use Psr\Log\LoggerInterface; |
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use Symfony\Component\Process\Process; |
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class OptimizerChain |
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{ |
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/* @var \Spatie\ImageOptimizer\Optimizer[] */ |
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protected $optimizers = []; |
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/** @var \Psr\Log\LoggerInterface */ |
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protected $logger; |
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/** @var int */ |
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protected $timeout = 60; |
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public function __construct() |
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{ |
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$this->useLogger(new DummyLogger()); |
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} |
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public function getOptimizers(): array |
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{ |
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return $this->optimizers; |
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} |
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public function addOptimizer(Optimizer $optimizer) |
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{ |
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$this->optimizers[] = $optimizer; |
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return $this; |
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} |
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public function setOptimizers(array $optimizers) |
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{ |
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$this->optimizers = []; |
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foreach ($optimizers as $optimizer) { |
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$this->addOptimizer($optimizer); |
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} |
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return $this; |
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} |
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/* |
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* Set the amount of seconds each separate optimizer may use. |
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*/ |
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public function setTimeout(int $timeoutInSeconds) |
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{ |
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$this->timeout = $timeoutInSeconds; |
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return $this; |
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} |
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public function useLogger(LoggerInterface $log) |
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{ |
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$this->logger = $log; |
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return $this; |
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} |
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public function optimize(string $pathToImage, string $pathToOutput = null) |
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{ |
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if ($pathToOutput) { |
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copy($pathToImage, $pathToOutput); |
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$pathToImage = $pathToOutput; |
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} |
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$image = new Image($pathToImage); |
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$this->logger->info("Start optimizing {$pathToImage}"); |
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foreach ($this->optimizers as $optimizer) { |
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$this->applyOptimizer($optimizer, $image); |
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} |
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} |
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protected function applyOptimizer(Optimizer $optimizer, Image $image) |
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{ |
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if (! $optimizer->canHandle($image)) { |
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return; |
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} |
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$optimizerClass = get_class($optimizer); |
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$this->logger->info("Using optimizer: `{$optimizerClass}`"); |
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$optimizer->setImagePath($image->path()); |
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$command = $optimizer->getCommand(); |
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$this->logger->info("Executing `{$command}`"); |
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$process = Process::fromShellCommandline($command); |
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$process |
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->setTimeout($this->timeout) |
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->run(); |
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$this->logResult($process); |
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} |
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protected function logResult(Process $process) |
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{ |
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if (! $process->isSuccessful()) { |
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$this->logger->error("Process errored with `{$process->getErrorOutput()}`"); |
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return; |
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} |
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$this->logger->info("Process successfully ended with output `{$process->getOutput()}`"); |
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} |
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} |
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spatie /
image-optimizer
In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
stringvalues, the empty string''is a special case, in particular the following results might be unexpected: