Managing Vendor Libraries with bin/vendors and deps

Every Symfony project uses a group of third-party "vendor" libraries. One

way or another the goal is to download these files into your ``vendor/``

into the ``deps.lock`` file.

Sometimes, you want a specific branch, tag, or commit of a library to be downloaded

or upgraded. You can set that directly to the ``deps`` file :

* The ``version`` option allows you to set a specific revision. You can use a tag (``version=origin/0.42``) or a branch name (``refs/remotes/origin/awesome-branch``). It defaults to ``origin/HEAD``.

When you execute the ``php bin/vendors install``, for every library, the script first checks if the install directory exists.