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gyro/install/check_preconditions.php

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<?php
function core_check_preconditions() {
        $ret = new Status();
        
        $tempdir = Config::get_value(Config::TEMP_DIR) . '/';

        $subdirs = array(
                '',
                'log', 
                'view', 'view/templates_c'
        );
        foreach($subdirs as $subdir) {
                $dir = rtrim($tempdir . $subdir, '/');
                if (!file_exists($dir)) {
                        $cmd = 'mkdir -p ' . $dir;
                        if (shell_exec($cmd)) { 
                                $ret->append('Could not create temporary directory ' . $dir);                   
                        }
                        else {
                                chmod($dir, 0777);
                        }
                }
                // Try to place file into temp dir
                $file = $dir . '/test' . md5(uniqid());
                if (touch($file)) {
                        unlink($file);
                }
                else {
                        $ret->append('Could not create file in temporary directory ' . $dir);
                }
        }
        
        return $ret;
}

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