get user's home

[db]

On 7 Aug 2017, at 20:03, Bradley Giesbrecht <pixilla at macports.org> wrote:
>> On Aug 5, 2017, at 3:55 AM, db <iamsudo at gmail.com> wrote:
>>> docker-machine's port, although I don't quite grasp what depends_run-append exactly does there.
> Depends_run-appends adds to the depends_run variable.

That I knew so far, but docker-machine uses a path dependency in prefix for bash-completion.

depends_run-append path:etc/bash_completion:bash-completion

Does it mean that it checks if that shell script exists in order to run? What if it doesn't?