/**
* Does the import
*
* @param ILess_ImportedFile $file The imported file
* @param string $path The original path
* @param ILess_FileInfo $currentFileInfo Current file info
* @param array $importOptions Import options
* @param boolean $fromCache Is the imported file coming from cache?
* @return array
*/
protected function doImport(ILess_ImportedFile $file, $path, ILess_FileInfo $currentFileInfo, array $importOptions = array(), $fromCache = false)
{
$newEnv = ILess_Environment::createCopy($this->env, $this->env->frames);
$newFileInfo = clone $currentFileInfo;
if ($this->env->relativeUrls) {
// Pass on an updated rootPath if path of imported file is relative and file
// is in a (sub|sup) directory
//
// Examples:
// - If path of imported file is 'module/nav/nav.less' and rootPath is 'less/',
// then rootPath should become 'less/module/nav/'
// - If path of imported file is '../mixins.less' and rootPath is 'less/',
// then rootPath should become 'less/../'
if (!ILess_Util::isPathAbsolute($path) && ($lastSlash = strrpos($path, '/')) !== false) {
$relativeSubDirectory = substr($path, 0, $lastSlash + 1);
$newFileInfo->rootPath = $newFileInfo->rootPath . $relativeSubDirectory;
}
}
// we need to clone here, to prevent modification of node current info object
$newEnv->currentFileInfo = $newFileInfo;
$newEnv->processImports = false;
if ($currentFileInfo->reference || isset($importOptions['reference']) && $importOptions['reference']) {
$newEnv->currentFileInfo->reference = true;
}
$key = $file->getPath();
$error = $root = null;
$alreadyImported = false;
// check for already imported file
if (isset($this->importedFiles[$key])) {
$alreadyImported = true;
} elseif (!$file->getRuleset()) {
$parser = new ILess_Parser_Core($newEnv, $this);
try {
// we do not parse the root but load the file as is
if (isset($importOptions['inline']) && $importOptions['inline']) {
$root = $file->getContent();
} else {
$root = $parser->parseFile($file, true);
$root->root = false;
$root->firstRoot = false;
}
$file->setRuleset($root);
// we need to catch parse exceptions
} catch (ILess_Exception_Parser $e) {
// rethrow
throw $e;
} catch (Exception $error) {
// FIXME: what other exceptions are allowed here?
$file->setError($error);
}
$this->setImportedFile($key, $file, $path, $currentFileInfo);
} else {
$this->setImportedFile($key, $file, $path, $currentFileInfo);
}
if ($fromCache) {
$ruleset = $this->importedFiles[$key][0]->getRuleset();
if ($ruleset instanceof ILess_Node) {
// FIXME: this is a workaround for reference and import one issues
// when taken cache
$this->updateReferenceInCurrentFileInfo($ruleset, $newEnv->currentFileInfo->reference);
}
}
return array($alreadyImported, $this->importedFiles[$key][0]);
}
