Get initial code from lakedrops/drupal-8-scaffold

.editorconfig

+# Drupal editor configuration normalization
+# @see http://editorconfig.org/
+
+# This is the top-most .editorconfig file; do not search in parent directories.
+root = true
+
+# All files.
+[*]
+end_of_line = LF
+indent_style = space
+indent_size = 2
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[{composer.json,composer.lock}]
+indent_size = 4

.gitignore

+vendor
+composer.lock

.gitlab-ci.yml

+Deploy:
+  script:
+    - curl -XPOST -H'content-type:application/json' "https://packagist.org/api/update-package?username=${PACKAGIST_USERNAME}&apiToken=${PACKAGIST_API_TOKEN}" -d'{"repository":{"url":"'${CI_PROJECT_URL}'"}}'

composer.json

+{
+    "name": "lakedrops/composer-scripts",
+    "description": "This plugin collects available scripts from installed LakeDrops plugins and defines them in the composer.json file of the project root.",
+    "type": "composer-plugin",
+    "keywords": [
+        "Drupal",
+        "Development",
+        "Install",
+        "Update"
+    ],
+    "homepage": "https://gitlab.lakedrops.com/composer/plugin/composer-scripts",
+    "license": "GPL-2.0+",
+    "authors": [
+        {
+            "name": "Jürgen Haas",
+            "email": "juergen@paragon-es.de",
+            "homepage": "https://www.paragon-es.de",
+            "role": "Drupal Expert"
+        },
+        {
+            "name": "Richard Papp",
+            "email": "richard.papp@boromino.com",
+            "homepage": "http://www.boromino.com",
+            "role": "Drupal Expert"
+        }
+    ],
+    "support": {
+        "issues": "https://gitlab.lakedrops.com/composer/plugin/composer-scripts/issues",
+        "source": "https://gitlab.lakedrops.com/composer/plugin/composer-scripts/tree/master"
+    },
+    "require": {
+        "composer-plugin-api": "^1.0.0",
+        "lakedrops/composer-json-utils": "^0.1"
+    },
+    "require-dev": {
+        "composer/composer": "^1.5.0",
+        "phpunit/phpunit": "^4.8.0"
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true,
+    "autoload": {
+        "psr-4": {
+            "LakeDrops\\ComposerScripts\\": "src/"
+        }
+    },
+    "extra": {
+        "class": "LakeDrops\\ComposerScripts\\Plugin",
+        "lakedrops": {
+            "scripts": {
+                "lakedrops-composer-scripts": {
+                    "callback": "LakeDrops\\ComposerScripts\\Plugin::scripts",
+                    "description": "Scan LakeDrops plugins for scripts."
+                }
+            }
+        }
+    }
+}

src/Handler.php

+<?php
+
+namespace LakeDrops\ComposerScripts;
+
+use Composer\Composer;
+use Composer\IO\IOInterface;
+use Composer\Script\Event;
+use LakeDrops\Component\Composer\Utils;
+
+/**
+ * Class Handler.
+ *
+ * @package LakeDrops\Drupal8Scaffold
+ */
+class Handler {
+
+  /**
+   * The composer object running this session.
+   *
+   * @var \Composer\Composer
+   */
+  protected $composer;
+
+  /**
+   * The input-output object for the composer session.
+   *
+   * @var \Composer\IO\IOInterface
+   */
+  protected $io;
+
+  /**
+   * Handler constructor.
+   *
+   * @param \Composer\Composer $composer
+   *   The composer object.
+   * @param \Composer\IO\IOInterface $io
+   *   The input-output object.
+   */
+  public function __construct(Composer $composer, IOInterface $io) {
+    $this->composer = $composer;
+    $this->io = $io;
+  }
+
+  /**
+   * Retrieve a package from the current composer process.
+   *
+   * @param string $name
+   *   Name of the package to get from the current composer installation.
+   *
+   * @return \Composer\Package\PackageInterface
+   *   The package.
+   */
+  protected function getPackage($name) {
+    return $this->composer->getRepositoryManager()->getLocalRepository()->findPackage($name, '*');
+  }
+
+  /**
+   * Update scripts of all LakeDrops plugins.
+   *
+   * @param \Composer\Script\Event $event
+   *   The event that triggered the plugin.
+   */
+  public function updateScripts(Event $event) {
+
+    // We only do the fancy stuff for developers.
+    if (!$event->isDevMode()) {
+      return;
+    }
+
+    $settings = new Utils($this->composer);
+    $scripts = $settings->getSection('scripts');
+    $scriptDescriptions = $settings->getSubSection('extra', 'scripts-description');
+    $installationManager = $this->composer->getInstallationManager();
+    foreach ($this->composer->getRepositoryManager()->getLocalRepository()->search('lakedrops/*') as $pkg) {
+      $pluginRoot = $installationManager->getInstallPath($this->getPackage($pkg['name']));
+      $pluginSettings = new Utils($this->composer, $pluginRoot);
+      foreach ($pluginSettings->getSubSubSection('extra', 'lakedrops', 'scripts') as $name => $script) {
+        $scripts[$name] = $script['callback'];
+        $scriptDescriptions[$name] = $script['description'];
+      }
+    }
+
+    $settings->setSection('scripts', $scripts);
+    $settings->setSubSection('extra', 'scripts-description', $scriptDescriptions);
+    $settings->write();
+  }
+
+}

src/Plugin.php

+<?php
+
+namespace LakeDrops\ComposerScripts;
+
+use Composer\Composer;
+use Composer\EventDispatcher\EventSubscriberInterface;
+use Composer\IO\IOInterface;
+use Composer\Plugin\PluginInterface;
+use Composer\Script\Event;
+use Composer\Script\ScriptEvents;
+
+/**
+ * Composer plugin for handling drupal scaffold.
+ */
+class Plugin implements PluginInterface, EventSubscriberInterface {
+
+  /**
+   * The handler object for events.
+   *
+   * @var \LakeDrops\ComposerScripts\Handler
+   */
+  protected $handler;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function activate(Composer $composer, IOInterface $io) {
+    $this->handler = new Handler($composer, $io);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getSubscribedEvents() {
+    return array(
+      ScriptEvents::POST_CREATE_PROJECT_CMD => 'updateScripts',
+      ScriptEvents::POST_INSTALL_CMD => 'updateScripts',
+      ScriptEvents::POST_UPDATE_CMD => 'updateScripts',
+    );
+  }
+
+  /**
+   * Update scripts of all LakeDrops plugins.
+   *
+   * @param \Composer\Script\Event $event
+   *   The event that triggered the plugin.
+   */
+  public function updateScripts(Event $event) {
+    $this->handler->updateScripts($event);
+  }
+
+  /**
+   * Callback to scan plugins for scripts.
+   *
+   * @param \Composer\Script\Event $event
+   *   The event that triggered the plugin.
+   */
+  public static function scripts(Event $event) {
+    $handler = new Handler($event->getComposer(), $event->getIO());
+    $handler->updateScripts($event);
+  }
+
+}