Core_Command::download PHP Метод

    public function download($args, $assoc_args)
    {
        $download_dir = !empty($assoc_args['path']) ? $assoc_args['path'] : ABSPATH;
        $wordpress_present = is_readable($download_dir . 'wp-load.php');
        if (!\WP_CLI\Utils\get_flag_value($assoc_args, 'force') && $wordpress_present) {
            WP_CLI::error('WordPress files seem to already be present here.');
        }
        if (!is_dir($download_dir)) {
            if (!is_writable(dirname($download_dir))) {
                WP_CLI::error(sprintf("Insufficient permission to create directory '%s'.", $download_dir));
            }
            WP_CLI::log(sprintf("Creating directory '%s'.", $download_dir));
            $mkdir = \WP_CLI\Utils\is_windows() ? 'mkdir %s' : 'mkdir -p %s';
            WP_CLI::launch(Utils\esc_cmd($mkdir, $download_dir));
        }
        if (!is_writable($download_dir)) {
            WP_CLI::error(sprintf("'%s' is not writable by current user.", $download_dir));
        }
        $locale = \WP_CLI\Utils\get_flag_value($assoc_args, 'locale', 'en_US');
        if (isset($assoc_args['version']) && 'latest' !== $assoc_args['version']) {
            $version = $assoc_args['version'];
            $version = in_array(strtolower($version), array('trunk', 'nightly')) ? 'nightly' : $version;
            //nightly builds are only available in .zip format
            $ext = 'nightly' === $version ? 'zip' : 'tar.gz';
            $download_url = $this->get_download_url($version, $locale, $ext);
        } else {
            $offer = $this->get_download_offer($locale);
            if (!$offer) {
                WP_CLI::error("The requested locale ({$locale}) was not found.");
            }
            $version = $offer['current'];
            $download_url = str_replace('.zip', '.tar.gz', $offer['download']);
        }
        if ('nightly' === $version && 'en_US' !== $locale) {
            WP_CLI::error('Nightly builds are only available for the en_US locale.');
        }
        $from_version = '';
        if (file_exists($download_dir . 'wp-includes/version.php')) {
            global $wp_version;
            require_once $download_dir . 'wp-includes/version.php';
            $from_version = $wp_version;
        }
        WP_CLI::log(sprintf('Downloading WordPress %s (%s)...', $version, $locale));
        $path_parts = pathinfo($download_url);
        $extension = 'tar.gz';
        if ('zip' === $path_parts['extension']) {
            $extension = 'zip';
            if (!class_exists('ZipArchive')) {
                WP_CLI::error('Extracting a zip file requires ZipArchive.');
            }
        }
        $cache = WP_CLI::get_cache();
        $cache_key = "core/wordpress-{$version}-{$locale}.{$extension}";
        $cache_file = $cache->has($cache_key);
        $bad_cache = false;
        if ($cache_file) {
            WP_CLI::log("Using cached file '{$cache_file}'...");
            try {
                Extractor::extract($cache_file, $download_dir);
            } catch (Exception $e) {
                WP_CLI::warning("Extraction failed, downloading a new copy...");
                $bad_cache = true;
            }
        }
        if (!$cache_file || $bad_cache) {
            // We need to use a temporary file because piping from cURL to tar is flaky
            // on MinGW (and probably in other environments too).
            $temp = \WP_CLI\Utils\get_temp_dir() . uniqid('wp_') . ".{$extension}";
            $headers = array('Accept' => 'application/json');
            $options = array('timeout' => 600, 'filename' => $temp);
            $response = Utils\http_request('GET', $download_url, null, $headers, $options);
            if (404 == $response->status_code) {
                WP_CLI::error("Release not found. Double-check locale or version.");
            } else {
                if (20 != substr($response->status_code, 0, 2)) {
                    WP_CLI::error("Couldn't access download URL (HTTP code {$response->status_code}).");
                }
            }
            if ('nightly' !== $version) {
                $md5_response = Utils\http_request('GET', $download_url . '.md5');
                if (20 != substr($md5_response->status_code, 0, 2)) {
                    WP_CLI::error("Couldn't access md5 hash for release (HTTP code {$response->status_code}).");
                }
                $md5_file = md5_file($temp);
                if ($md5_file === $md5_response->body) {
                    WP_CLI::log('md5 hash verified: ' . $md5_file);
                } else {
                    WP_CLI::error("md5 hash for download ({$md5_file}) is different than the release hash ({$md5_response->body}).");
                }
            } else {
                WP_CLI::warning('md5 hash checks are not available for nightly downloads.');
            }
            try {
                Extractor::extract($temp, $download_dir);
            } catch (Exception $e) {
                WP_CLI::error("Couldn't extract WordPress archive. " . $e->getMessage());
            }
            if ('nightly' !== $version) {
                $cache->import($cache_key, $temp);
            }
            unlink($temp);
        }
        if ($wordpress_present) {
            $this->cleanup_extra_files($from_version, $version, $locale);
        }
        WP_CLI::success('WordPress downloaded.');
    }