Diff against upstream branch

[dato]

Hello!

I'm a new user, and I find myself running this too often to know "what would push change":

$ jj diff --from push-xxxyyyzzz@origin --to @

(This is doing it manually for the current branch, and not everything that would be pushed.)

My questions are:

1. is there a shortcut/alias I could use for the command above? I read the revset docs, but I cannot figure out how to get the current tracking remote branch (sorry if it's documented somewhere, I couldn't find it)

2. could there perhaps be something like jj git push --dry-run --diff that shows me the changes that would be pushed (for all branches)?

Any tips welcome, thanks!