OutputCallback.php

<?php

declare (strict_types=1);
namespace PhpTuf\ComposerStager\Internal\Process\Service;

use PhpTuf\ComposerStager\API\Process\Service\OutputCallbackInterface;
use PhpTuf\ComposerStager\API\Process\Value\OutputTypeEnum;

/**
 * @package Process
 *
 * @internal Don't depend directly on this class. It may be changed or removed at any time without notice.
 */
final class OutputCallback implements OutputCallbackInterface {
    
    /** @var array<string> */
    private array $output = [];
    
    /** @var array<string> */
    private array $errorOutput = [];
    public function clearErrorOutput() : void {
        $this->errorOutput = [];
    }
    public function clearOutput() : void {
        $this->output = [];
    }
    public function getErrorOutput() : array {
        return $this->errorOutput;
    }
    public function getOutput() : array {
        return $this->output;
    }
    
    /** @return array<string> */
    private function normalizeBuffer(string $buffer) : array {
        // Convert Windows line endings.
        // @infection-ignore-all This only makes any difference on Windows,
        //   whereas Infection is only run on Linux.
        $buffer = str_replace("\r\n", "\n", $buffer);
        // Trim meaningless new lines at the beginning and end of buffers.
        $buffer = preg_replace("/(^\r?\n|\r?\n\$)/", '', $buffer, 1);
        assert(is_string($buffer));
        // Split multiline strings into an array.
        return explode("\n", $buffer);
    }
    public function __invoke(OutputTypeEnum $type, string $buffer) : void {
        $lines = $this->normalizeBuffer($buffer);
        if ($type === OutputTypeEnum::OUT) {
            $this->output = array_merge($this->output, $lines);
        }
        else {
            $this->errorOutput = array_merge($this->errorOutput, $lines);
        }
    }

}