1 files changed, 20 insertions, 0 deletions
diff --git a/nixos/profiles/workstation/scripts/set-wallpaper b/nixos/profiles/workstation/scripts/set-wallpaper
new file mode 100644
index 0000000..2bfdf0d
--- /dev/null
+++ b/nixos/profiles/workstation/scripts/set-wallpaper
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+# Sets the text read from stdin as the Sway wallpaper.
+
+TEXT=$(< /dev/stdin)
+TEMPDIR=$(mktemp -d)
+FONT_SIZE=18
+
+swaymsg -t get_outputs | jq -r '.[] | "\(.name) \(.rect.width) \(.rect.height)"'\
+| while read -r name width height; do
+    file="$TEMPDIR/${name}".png
+    offset=$(($height / 20))
+    width=$(($width - $offset))
+    height=$(($height - $offset))
+    magick -size ${width}x$height xc:black -font "DejaVu-Sans-Mono" -pointsize $FONT_SIZE -fill white \
+      -annotate +0+15 "$TEXT" $file
+    sway output "$name" bg $file center
+done
+
+sleep 0.1 # sway reads the wallpaper in a different process, so wait a bit
+rm -r "$TEMPDIR"