class Composer in Drupal 8

Provides static functions for composer script events. See also core/lib/Drupal/Composer/Composer.php, which contains similar scripts needed by projects that include drupal/core. Scripts that are only needed by drupal/drupal go here.

Hierarchy

• class \Drupal\Composer\Composer

See also

https://getcomposer.org/doc/articles/scripts.md

5 files declare their use of Composer

BuilderTest.php in core/tests/Drupal/Tests/Composer/Generator/BuilderTest.php

ComposerProjectTemplatesTest.php in core/tests/Drupal/BuildTests/Composer/Template/ComposerProjectTemplatesTest.php

ComposerTest.php in core/tests/Drupal/Tests/Composer/ComposerTest.php

DrupalCoreRecommendedBuilder.php in composer/Generator/Builder/DrupalCoreRecommendedBuilder.php

DrupalPinnedDevDependenciesBuilder.php in composer/Generator/Builder/DrupalPinnedDevDependenciesBuilder.php

File

composer/Composer.php, line 18

Namespace

Drupal\Composer

class Composer {

  /**
   * Update metapackages whenever composer.lock is updated.
   *
   * @param \Composer\Script\Event $event
   */
  public static function generateMetapackages(Event $event) {
    $generator = new PackageGenerator();
    $generator
      ->generate($event
      ->getIO(), getcwd());
  }

  /**
   * Ensure that the minimum required version of Composer is running.
   * Throw an exception if Composer is too old.
   */
  public static function ensureComposerVersion() {
    $composerVersion = method_exists(ComposerApp::class, 'getVersion') ? ComposerApp::getVersion() : ComposerApp::VERSION;
    if (Comparator::lessThan($composerVersion, '1.9.0')) {
      throw new \RuntimeException("Drupal core development requires Composer 1.9.0, but Composer {$composerVersion} is installed. Please run 'composer self-update'.");
    }
  }

  /**
   * Return the branch name the current Drupal version is associated with.
   *
   * @return string
   *   A branch name, e.g. 8.9.x or 9.0.x.
   */
  public static function drupalVersionBranch() {
    return preg_replace('#\\.[0-9]+-dev#', '.x-dev', \Drupal::VERSION);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
Composer::drupalVersionBranch	public static	function	Return the branch name the current Drupal version is associated with.
Composer::ensureComposerVersion	public static	function	Ensure that the minimum required version of Composer is running. Throw an exception if Composer is too old.
Composer::generateMetapackages	public static	function	Update metapackages whenever composer.lock is updated.