dotemacs/tests/test-dirvish-config-wallpaper-program.el, branch load-graph-classify-startMy Emacs configuration
https://git.cjennings.net/dotemacs/atom?h=load-graph-classify-start2026-05-10T18:30:08+00:00refactor(dirvish): extract cj/--wallpaper-program-for helper2026-05-10T18:30:08+00:00Craig Jenningsc@cjennings.net2026-05-10T18:30:08+00:00urn:sha1:6545605fa965d649defc0bb01e8c040afbbcc529
`cj/set-wallpaper' had two parallel cond arms hardcoding the X11/Wayland dispatch and the success/failure messages inline. Lift the program-and-args choice into `cj/--wallpaper-program-for' -- a pcase from a display-server symbol to a (PROGRAM ARG...) list, or nil for unknown environments. The wrapper now: detect env, ask helper for the command, surface the right message (unknown server / executable missing / success). Adding a third backend (e.g. xdg-desktop-portal) becomes one pcase clause + one test.