Add the desktop-wallpaper script.

.bauke/bin/desktop-wallpaper

@@ -0,0 +1,7 @@
+#!/usr/bin/env zsh
+
+deno run \
+  --allow-run="curl,xfconf-query" \
+  --allow-write \
+  "$BAUKE_DIR/scripts/desktop-wallpaper.ts" \
+  "$@"

.bauke/scripts/desktop-wallpaper.ts

@@ -0,0 +1,55 @@
+import { Command } from "https://deno.land/x/cliffy@v0.25.5/command/mod.ts";
+
+const imagePath = new URL("../data/wallpaper.jpg", import.meta.url).pathname;
+
+async function main(): Promise<void> {
+  const { options } = await new Command()
+    .name("desktop-wallpaper")
+    .description("Desktop wallpaper changer for XFCE")
+    .option("--unsplash", "Download a random Unsplash wallpaper")
+    .option("--height <height:number>", "The height of the image", {
+      default: 1080,
+      depends: ["unsplash"],
+    })
+    .option("--width <width:number>", "The width of the image", {
+      default: 1920,
+      depends: ["unsplash"],
+    })
+    .parse(Deno.args);
+
+  if (options.unsplash) {
+    await downloadImage(
+      `https://source.unsplash.com/random/${options.width}x${options.height}`,
+    );
+    console.log("Saved Unsplash image to");
+    console.log("-", imagePath);
+    await setWallpaper();
+  }
+}
+
+async function downloadImage(url: string): Promise<void> {
+  await Deno.run({
+    cmd: ["curl", "-fsLS", url, "-o", imagePath],
+  }).status();
+}
+
+async function setWallpaper(): Promise<void> {
+  const monitors = ["monitorHDMI-0", "monitorHDMI-1"];
+  for (const monitor of monitors) {
+    await Deno.run({
+      cmd: [
+        "xfconf-query",
+        "-c",
+        "xfce4-desktop",
+        "-p",
+        `/backdrop/screen0/${monitor}/workspace0/last-image`,
+        "-s",
+        imagePath,
+      ],
+    }).status();
+  }
+}
+
+if (import.meta.main) {
+  void main();
+}