composer.json

{
  "repositories": [
    {
      "type": "package",
      "package": {
        "name": "wordpress/wordpress",
        "type": "webroot",
        "version": "4.3.1",
        "dist": {
          "type": "zip",
          "url": "https://github.com/WordPress/WordPress/archive/4.3.1.zip"
        },
        "require" : {
          "fancyguy/webroot-installer": "1.1.0"
        }
      }
    },
    {
      "type":"composer",
      "url":"http://wpackagist.org"
    }
  ],
  "require": {
    "php": ">=5.3.2",
    "fancyguy/webroot-installer": "1.1.0",
    "composer/installers": "~1.0.12",
    "wordpress/wordpress": "4.3.1",
    "vlucas/phpdotenv": "^2.0.1",
    "wpackagist-plugin/akismet": "3.1.5",
    "wpackagist-plugin/auto-post-thumbnail": "3.3.3",
    "symfony/yaml": "^2.7"
  },
  "extra": {
    "webroot-dir": "docroot/wordpress",
    "webroot-package": "wordpress/wordpress",
    "installer-paths": {
      "docroot/wp-content/mu-plugins/{$name}/": ["type:wordpress-muplugin"],
      "docroot/wp-content/plugins/{$name}/": ["type:wordpress-plugin"],
      "docroot/wp-content/themes/{$name}/": ["type:wordpress-theme"]
    }
  },
  "scripts": {
    "post-install-cmd": [
      "rm -rf docroot/wordpress/wp-content"
    ],
    "post-update-cmd": [
      "rm -rf docroot/wordpress/wp-content"
    ]
  }
}