GraphicsMagickPreset.php

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<?php
namespace TYPO3\CMS\Install\Configuration\Image;

use TYPO3\CMS\Install\Configuration;

class GraphicsMagickPreset extends AbstractImagePreset implements Configuration\PresetInterface {

    protected $name = 'GraphicsMagick';

    protected $priority = 80;

    protected $configurationValues = array(
        'GFX/image_processing' => 1,
        'GFX/im' => 1,
        // im_path and im_path_lzw are determined and set by path lookup methods
        'GFX/im_path' => '',
        'GFX/im_path_lzw' => '',
        'GFX/im_version_5' => 'gm',
        'GFX/im_v5effects' => -1,
        'GFX/im_mask_temp_ext_gif' => 1,
        'GFX/colorspace' => 'RGB',
    );

    protected function findExecutableInPath(array $searchPaths) {
        return $this->findGraphicsMagickInPaths($searchPaths);
    }

    protected function findGraphicsMagickInPaths(array $searchPaths) {
        $result = FALSE;
        foreach ($searchPaths as $path) {
            if (TYPO3_OS === 'WIN') {
                $executable = 'gm.exe';
            } else {
                $executable = 'gm';
            }
            if (@is_file($path . $executable)) {
                $command = escapeshellarg($path . $executable) . ' -version';
                $executingResult = FALSE;
                \TYPO3\CMS\Core\Utility\CommandUtility::exec($command, $executingResult);
                // First line of exec command should contain string GraphicsMagick
                $firstResultLine = array_shift($executingResult);
                if (strpos($firstResultLine, 'GraphicsMagick') !== FALSE) {
                    $this->foundPath = $path;
                    $result = TRUE;
                    break;
                }
            }
        }
        return $result;
    }
}