WordPress Version: 6.4
/**
* Creates an export of the current templates and
* template parts from the site editor at the
* specified path in a ZIP file.
*
* @since 5.9.0
* @since 6.0.0 Adds the whole theme to the export archive.
*
* @global string $wp_version The WordPress version string.
*
* @return WP_Error|string Path of the ZIP file or error on failure.
*/
function wp_generate_block_templates_export_file()
{
global $wp_version;
if (!class_exists('ZipArchive')) {
return new WP_Error('missing_zip_package', __('Zip Export not supported.'));
}
$obscura = wp_generate_password(12, false, false);
$theme_name = basename(get_stylesheet());
$filename = get_temp_dir() . $theme_name . $obscura . '.zip';
$zip = new ZipArchive();
if (true !== $zip->open($filename, ZipArchive::CREATE | ZipArchive::OVERWRITE)) {
return new WP_Error('unable_to_create_zip', __('Unable to open export file (archive) for writing.'));
}
$zip->addEmptyDir('templates');
$zip->addEmptyDir('parts');
// Get path of the theme.
$theme_path = wp_normalize_path(get_stylesheet_directory());
// Create recursive directory iterator.
$theme_files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($theme_path), RecursiveIteratorIterator::LEAVES_ONLY);
// Make a copy of the current theme.
foreach ($theme_files as $file) {
// Skip directories as they are added automatically.
if (!$file->isDir()) {
// Get real and relative path for current file.
$file_path = wp_normalize_path($file);
$relative_path = substr($file_path, strlen($theme_path) + 1);
if (!wp_is_theme_directory_ignored($relative_path)) {
$zip->addFile($file_path, $relative_path);
}
}
}
// Load templates into the zip file.
$templates = get_block_templates();
foreach ($templates as $template) {
$template->content = traverse_and_serialize_blocks(parse_blocks($template->content), '_remove_theme_attribute_from_template_part_block');
$zip->addFromString('templates/' . $template->slug . '.html', $template->content);
}
// Load template parts into the zip file.
$template_parts = get_block_templates(array(), 'wp_template_part');
foreach ($template_parts as $template_part) {
$zip->addFromString('parts/' . $template_part->slug . '.html', $template_part->content);
}
// Load theme.json into the zip file.
$tree = WP_Theme_JSON_Resolver::get_theme_data(array(), array('with_supports' => false));
// Merge with user data.
$tree->merge(WP_Theme_JSON_Resolver::get_user_data());
$theme_json_raw = $tree->get_data();
// If a version is defined, add a schema.
if ($theme_json_raw['version']) {
$theme_json_version = 'wp/' . substr($wp_version, 0, 3);
$schema = array('$schema' => 'https://schemas.wp.org/' . $theme_json_version . '/theme.json');
$theme_json_raw = array_merge($schema, $theme_json_raw);
}
// Convert to a string.
$theme_json_encoded = wp_json_encode($theme_json_raw, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
// Replace 4 spaces with a tab.
$theme_json_tabbed = preg_replace('~(?:^|\G)\h{4}~m', "\t", $theme_json_encoded);
// Add the theme.json file to the zip.
$zip->addFromString('theme.json', $theme_json_tabbed);
// Save changes to the zip file.
$zip->close();
return $filename;
}