composer.json

{
    "repositories": [
        {
            "type": "package",
            "package":
            {
                "name": "wordpress",
                "type": "webroot",
                "version": "4.9.8",
                "dist":
                {
                    "type": "zip",
                    "url": "https://wordpress.org/wordpress-4.9.8.zip"
                },
                "require" :
                {
                    "fancyguy/webroot-installer": "1.0.0"
                }
            }
        },
        {
            "type":"composer",
                "url":"https://wpackagist.org"
        }
    ],
    "require": {
        "fancyguy/webroot-installer": "1.0.0",
        "php": ">=5.5.9",
        "wordpress": "4.9.8",
        "wpackagist-plugin/advanced-sidebar-menu": "~6.3.0",
        "wpackagist-plugin/akismet":"3.3.4",
        "wpackagist-plugin/all-in-one-wp-security-and-firewall":"~4.2.8",
        "wpackagist-plugin/better-search-replace":"~1.3",
        "wpackagist-plugin/breadcrumb-navxt": "~5.7.1",
        "wpackagist-plugin/co-authors-plus":"*",
        "wpackagist-plugin/easy-add-thumbnail": "1.1.1",
        "wpackagist-plugin/google-analytics-for-wordpress":"~6.2.1",
        "wpackagist-plugin/gravity-forms-google-analytics-event-tracking": "2.0.3",
        "wpackagist-plugin/jetpack":"~5.2.1",
        "wpackagist-plugin/popup-maker": "~1.6.5",
        "wpackagist-plugin/regenerate-thumbnails": "2.2.6",
        "wpackagist-plugin/simple-local-avatars": "2.0",
        "wpackagist-plugin/widget-css-classes": "1.5.1",
        "wpackagist-plugin/wordpress-importer":"0.6.3",
        "wpackagist-plugin/wordpress-seo":"5.2",
        "wpackagist-plugin/wp-super-cache":"1.5.3",
        "wpackagist-theme/twentysixteen": "1.2"
    },
    "extra":
    {
        "webroot-dir": "docroot/wordpress",
        "webroot-package": "wordpress",
        "installer-paths":
        {
            "docroot/wp-content/plugins/{$name}/": ["type:wordpress-plugin"],
            "docroot/wp-content/themes/{$name}/": ["type:wordpress-theme"]
        }
    }
}