tl;dr: Our beloved scap is changing to use subcommands rather than a bunch of scripts, but the existing scripts will work for a short time.
Starting with the 3.2.0 release[0], which will hit production in the next day or so, scap will use subcommands rather than using many different scripts that all call the same underlying code. The scripts (e.g., deploy, sync-file, sync-dir, sync-wikiversions.) will continue to work as usual, but they will issue a deprecation warning until the next release when they will disappear.
The most notable exception is the `scap` command which must be invoked as `scap sync [message]`.
The docs are updated[1] and you can see new help output there or on phabricator[2].
Long story short, you will now run:
scap sync-file <path> [message]
Instead of:
sync-file <path> [message]
This change has been cherry-picked on beta cluster and is currently live there.
<3, Tyler Cipriani and the Deployment Working Group
[0]. https://gerrit.wikimedia.org/r/#/c/287918 [1]. https://doc.wikimedia.org/mw-tools-scap/ [2]. https://phabricator.wikimedia.org/P3027