drupal/composer.json

{
  "name": "drupal/drupal",
  "description": "Drupal is an open source content management platform powering millions of websites and applications.",
  "type": "project",
  "license": "GPL-2.0+",
  "require": {
    "composer/installers": "^1.0.21",
    "wikimedia/composer-merge-plugin": "~1.3"
  },
  "replace": {
    "drupal/core": "~8.0"
  },
  "minimum-stability": "dev",
  "prefer-stable": true,
  "config": {
    "preferred-install": "dist",
    "autoloader-suffix": "Drupal8"
  },
  "extra": {
    "_readme": [
      "By default Drupal loads the autoloader from ./vendor/autoload.php.",
      "To change the autoloader you can edit ./autoload.php."
    ],
    "merge-plugin": {
      "include": [
        "core/composer.json"
      ],
      "recurse": false,
      "replace": false,
      "merge-extra": false
    }
  },
  "autoload": {
    "psr-4": {
      "Drupal\\Core\\Composer\\": "core/lib/Drupal/Core/Composer"
    }
  },
  "scripts": {
    "pre-autoload-dump": "Drupal\\Core\\Composer\\Composer::preAutoloadDump",
    "post-autoload-dump": "Drupal\\Core\\Composer\\Composer::ensureHtaccess",
    "post-package-install": "Drupal\\Core\\Composer\\Composer::vendorTestCodeCleanup",
    "post-package-update": "Drupal\\Core\\Composer\\Composer::vendorTestCodeCleanup"
  }
}