portnap is a simple replacement for the discontinued FreeBSD portsnap, acting as convinient git wrapper.
portnap auto In most cases, it's all what you need.
Usage: portnap [path] <command> [branch]
-p portsdir -- Location of ports tree (default: /usr/ports/)
auto -- Fetch updates, and either clone a new ports tree or update an existing tree.
fetch -- Same as auto but also allows you to select a specific branch.
Where the branch is in <yyyyQx> or <Qx> format.
switch -- Change ports tree branch, where the branch is in <yyyyQx> or <Qx> format.
help -- Print this help information.
portnap fetch Q3 -- Clone or pull ports tree from third quarter of current year.
portnap -p /usr/local/poudriere/acme/usr/ports auto -- Clone or pull ports tree to alternative directory.
https://github.com/littlelevi/portnap-port/tree/main