Would it possible to enable the support for the GnuPG agent to be compiled in by default?
A commit references this bug:
Date: Thu Feb 27 12:11:54 UTC 2020
New revision: 527249
devel/subversion: Enable the GPG_AGENT option by default
gpg-agent is one of the easiest ways of storing credentials in Subversion.
Let's enable support for it by default to make life easier for Subversion
users, who do not want to depend on gnome-keyring or kwallet for password
Approved by: lev (maintainer)
Differential Revision: https://reviews.freebsd.org/D23849