public LibraryDependencyResolver::getMinimalRepresentativeSubset(array $libraries)
Gets the minimal representative subset of the given libraries.
A minimal representative subset means that any library in the given set of libraries that is a dependency of another library in the set, is removed.
Hence a minimal representative subset is the most compact representation possible of a set of libraries.
(Each asset library has dependencies and can therefore be seen as a tree. Hence the given list of libraries represent a forest. This function returns all roots of trees that are not a subtree of another tree in the forest.)
Parameters
string[] $libraries: A set of libraries.
Return value
string[] A representative subset of the given set of libraries.
Overrides LibraryDependencyResolverInterface::getMinimalRepresentativeSubset
File
- core/lib/Drupal/Core/Asset/LibraryDependencyResolver.php, line 67
Class
- LibraryDependencyResolver
- Resolves the dependencies of asset (CSS/JavaScript) libraries.
Namespace
Drupal\Core\Asset
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | public function getMinimalRepresentativeSubset(array $libraries) { $minimal = []; // Determine each library's dependencies. $with_deps = []; foreach ($libraries as $library) { $with_deps[$library] = $this->getLibrariesWithDependencies([$library]); } foreach ($libraries as $library) { $exists = FALSE; foreach ($with_deps as $other_library => $dependencies) { if ($library == $other_library) { continue; } if (in_array($library, $dependencies)) { $exists = TRUE; break; } } if (!$exists) { $minimal[] = $library; } } return $minimal;} |
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