A starter composer file for managing wordpress with composer.

composer.json

{
  "repositories": [
    {
      "type": "composer",
      "url": "https://wpackagist.org"
    },
    {
      "type": "package",
      "package": {
        "name": "advanced-custom-fields/advanced-custom-fields-pro",
        "version": "5.3.3",
        "type": "wordpress-plugin",
        "dist": {
          "type": "zip",
          "url": "https://connect.advancedcustomfields.com/index.php?t=5.3.3&p=pro&a=download&k=YOUR_PURCHASE_KEY_HERE"
        }
      }
    }
  ],
  "require": {
    "composer/installers" : "~1.0",
    "johnpbloch/wordpress": "*",
    "php": ">=5.3.0",
    "wpackagist-plugin/timber-library": "*",
    "advanced-custom-fields/advanced-custom-fields-pro": "*"
  },
  "extra": {
      "wordpress-install-dir": "wp",
      "installer-paths" : {
          "wp-content/mu-plugins/{$name}/": ["type:wordpress-plugin"]
      }
  }
}