protected function GenerateTheme::execute in Drupal 10
Same name and namespace in other branches
- 9 core/lib/Drupal/Core/Command/GenerateTheme.php \Drupal\Core\Command\GenerateTheme::execute()
File
- core/
lib/ Drupal/ Core/ Command/ GenerateTheme.php, line 62
Class
- GenerateTheme
- Generates a new theme based on latest default markup.
Namespace
Drupal\Core\CommandCode
protected function execute(InputInterface $input, OutputInterface $output) : int {
$io = new SymfonyStyle($input, $output);
// Change the directory to the Drupal root.
chdir($this->root);
// Path where the generated theme should be placed.
$destination_theme = $input
->getArgument('machine-name');
$default_destination = 'themes';
$destination = trim($input
->getOption('path') ?: $default_destination, '/') . '/' . $destination_theme;
if (is_dir($destination)) {
$io
->getErrorStyle()
->error("Theme could not be generated because the destination directory {$destination} exists already.");
return 1;
}
// Source directory for the theme.
$source_theme_name = $input
->getOption('starterkit');
if (!($source_theme = $this
->getThemeInfo($source_theme_name))) {
$io
->getErrorStyle()
->error("Theme source theme {$source_theme_name} cannot be found.");
return 1;
}
if (!$this
->isStarterkitTheme($source_theme)) {
$io
->getErrorStyle()
->error("Theme source theme {$source_theme_name} is not a valid starter kit.");
return 1;
}
$source = $source_theme
->getPath();
if (!is_dir($source)) {
$io
->getErrorStyle()
->error("Theme could not be generated because the source directory {$source} does not exist.");
return 1;
}
$tmp_dir = $this
->getUniqueTmpDirPath();
$this
->copyRecursive($source, $tmp_dir);
// Rename files based on the theme machine name.
$file_pattern = "/{$source_theme_name}\\.(theme|[^.]+\\.yml)/";
if ($files = @scandir($tmp_dir)) {
foreach ($files as $file) {
$location = $tmp_dir . '/' . $file;
if (is_dir($location)) {
continue;
}
if (preg_match($file_pattern, $file, $matches)) {
if (!rename($location, $tmp_dir . '/' . $destination_theme . '.' . $matches[1])) {
$io
->getErrorStyle()
->error("The file {$location} could not be moved.");
return 1;
}
}
}
}
else {
$io
->getErrorStyle()
->error("Temporary directory {$tmp_dir} cannot be opened.");
return 1;
}
// Info file.
$info_file = "{$tmp_dir}/{$destination_theme}.info.yml";
if (!file_exists($info_file)) {
$io
->getErrorStyle()
->error("The theme info file {$info_file} could not be read.");
return 1;
}
$info = Yaml::decode(file_get_contents($info_file));
$info['name'] = $input
->getOption('name') ?: $destination_theme;
$info['core_version_requirement'] = '^' . $this
->getVersion();
if (!array_key_exists('version', $info)) {
$confirm_versionless_source_theme = new ConfirmationQuestion(sprintf('The source theme %s does not have a version specified. This makes tracking changes in the source theme difficult. Are you sure you want to continue?', $source_theme
->getName()));
if (!$io
->askQuestion($confirm_versionless_source_theme)) {
return 0;
}
}
$source_version = $info['version'] ?? 'unknown-version';
if ($source_version === 'VERSION') {
$source_version = \Drupal::VERSION;
}
// A version in the generator string like "9.4.0-dev" is not very helpful.
// When this occurs, generate a version string that points to a commit.
if (VersionParser::parseStability($source_version) === 'dev') {
$git_check = Process::fromShellCommandline('git --help');
$git_check
->run();
if ($git_check
->getExitCode()) {
$io
->error(sprintf('The source theme %s has a development version number (%s). Determining a specific commit is not possible because git is not installed. Either install git or use a tagged release to generate a theme.', $source_theme
->getName(), $source_version));
return 1;
}
// Get the git commit for the source theme.
$git_get_commit = Process::fromShellCommandline("git rev-list --max-count=1 --abbrev-commit HEAD -C {$source}");
$git_get_commit
->run();
if ($git_get_commit
->getOutput() === '') {
$confirm_packaged_dev_release = new ConfirmationQuestion(sprintf('The source theme %s has a development version number (%s). Because it is not a git checkout, a specific commit could not be identified. This makes tracking changes in the source theme difficult. Are you sure you want to continue?', $source_theme
->getName(), $source_version));
if (!$io
->askQuestion($confirm_packaged_dev_release)) {
return 0;
}
$source_version .= '#unknown-commit';
}
else {
$source_version .= '#' . trim($git_get_commit
->getOutput());
}
}
$info['generator'] = "{$source_theme_name}:{$source_version}";
if ($description = $input
->getOption('description')) {
$info['description'] = $description;
}
else {
unset($info['description']);
}
// Replace references to libraries.
if (isset($info['libraries'])) {
$info['libraries'] = preg_replace("/{$source_theme_name}(\\/.*)/", "{$destination_theme}\$1", $info['libraries']);
}
if (isset($info['libraries-extend'])) {
foreach ($info['libraries-extend'] as $key => $value) {
$info['libraries-extend'][$key] = preg_replace("/{$source_theme_name}(\\/.*)/", "{$destination_theme}\$1", $info['libraries-extend'][$key]);
}
}
if (isset($info['libraries-override'])) {
foreach ($info['libraries-override'] as $key => $value) {
if (isset($info['libraries-override'][$key]['dependencies'])) {
$info['libraries-override'][$key]['dependencies'] = preg_replace("/{$source_theme_name}(\\/.*)/", "{$destination_theme}\$1", $info['libraries-override'][$key]['dependencies']);
}
}
}
if (!file_put_contents($info_file, Yaml::encode($info))) {
$io
->getErrorStyle()
->error("The theme info file {$info_file} could not be written.");
return 1;
}
// Replace references to libraries in libraries.yml file.
$libraries_file = "{$tmp_dir}/{$destination_theme}.libraries.yml";
if (file_exists($libraries_file)) {
$libraries = Yaml::decode(file_get_contents($libraries_file));
foreach ($libraries as $key => $value) {
if (isset($libraries[$key]['dependencies'])) {
$libraries[$key]['dependencies'] = preg_replace("/{$source_theme_name}(\\/.*)/", "{$destination_theme}\$1", $libraries[$key]['dependencies']);
}
}
if (!file_put_contents($libraries_file, Yaml::encode($libraries))) {
$io
->getErrorStyle()
->error("The libraries file {$libraries_file} could not be written.");
return 1;
}
}
// Rename hooks.
$theme_file = "{$tmp_dir}/{$destination_theme}.theme";
if (file_exists($theme_file)) {
if (!file_put_contents($theme_file, preg_replace("/(function )({$source_theme_name})(_.*)/", "\$1{$destination_theme}\$3", file_get_contents($theme_file)))) {
$io
->getErrorStyle()
->error("The theme file {$theme_file} could not be written.");
return 1;
}
}
// Rename references to libraries in templates.
$iterator = new TemplateDirIterator(new \RegexIterator(new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($tmp_dir), \RecursiveIteratorIterator::LEAVES_ONLY), '/' . preg_quote('.html.twig') . '$/'));
foreach ($iterator as $template_file => $contents) {
$new_template_content = preg_replace("/(attach_library\\(['\")]){$source_theme_name}(\\/.*['\"]\\))/", "\$1{$destination_theme}\$2", $contents);
if (!file_put_contents($template_file, $new_template_content)) {
$io
->getErrorStyle()
->error("The template file {$template_file} could not be written.");
return 1;
}
}
$loader = new ClassLoader();
$loader
->addPsr4("Drupal\\{$source_theme_name}\\", "{$source}/src");
$loader
->register();
$generator_classname = "Drupal\\{$source_theme_name}\\StarterKit";
if (class_exists($generator_classname)) {
if (is_a($generator_classname, StarterKitInterface::class, TRUE)) {
$generator_classname::postProcess($tmp_dir, $destination_theme, $info['name']);
}
else {
$io
->getErrorStyle()
->error("The {$generator_classname} does not implement \\Drupal\\Core\\Theme\\StarterKitInterface and cannot perform post-processing.");
return 1;
}
}
if (!@rename($tmp_dir, $destination)) {
// If rename fails, copy the files to the destination directory. This is
// expected to happen when the tmp directory is on a different file
// system.
$this
->copyRecursive($tmp_dir, $destination);
// Renaming would not have left anything behind. Ensure that is still the
// case.
$this
->rmRecursive($tmp_dir);
}
$output
->writeln(sprintf('Theme generated successfully to %s', $destination));
return 0;
}