Magit displays the progression of multi-step commands with popup windows. For example, pressing c brings up the commit menu, whence pressing a will invoke magit-commit-amend.
I would like to include my own command magit-commit-snapshot, and invoke it with cn.
n: Snapshot should be displayed in the commit menu, after s: Squash.
How can I do this? I can see that the bindings exist in magit-key-mode.el, but I don't see an easy way to add to them from my .emacs.
Starting with v2.1.0 you can do so using this:
(magit-define-popup-action 'magit-commit-popup ?n "Snapshot" 'magit-commit-snapshot) The next release of Magit will replace magit-popup with transient. (As of writing the current Magit release is v2.90.1.) Using transient, you can add a custom command with transient-append-suffix:
(transient-append-suffix 'magit-commit "c" '("n" "Snapshot" magit-commit-snapshot)) For more information, see the section on modifying existing transients in the manual.
transient.el? Is there a more up-to-date answer? 'magit-commit in this case): enter the magit transient (C-x M-g), then hit C-x l, then type the leader key: it will show the prefix command in the minibuffer. E.g. to find the prefix command for "l" (log): C-x M-g C-x l l, and you will see: magit-log.