wip: dnsc-machine setup

modules/wm/awww/default.nix

@@ -0,0 +1,7 @@
+{ config, ... }:
+
+{
+  xdg.configFile."awww/bin" = {
+    source = config.lib.file.mkOutOfStoreSymlink "${config.home.homeDirectory}/dev/nix-config/modules/wm/awww/scripts";
+  };
+}

modules/wm/awww/scripts/random-bg.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+# Changes the wallpaper to a randomly chosen image in a given directory
+# at a set interval.
+
+DEFAULT_INTERVAL=300 # In seconds
+
+if [ $# -lt 1 ] || [ ! -d "$1" ]; then
+	printf "Usage:\n\t\e[1m%s\e[0m \e[4mDIRECTORY\e[0m [\e[4mINTERVAL\e[0m]\n" "$0"
+	printf "\tChanges the wallpaper to a randomly chosen image in DIRECTORY every\n\tINTERVAL seconds (or every %d seconds if unspecified)." "$DEFAULT_INTERVAL"
+	exit 1
+fi
+
+# See awww-img(1)
+RESIZE_TYPE="fit"
+export AWWW_TRANSITION_FPS="${AWWW_TRANSITION_FPS:-60}"
+export AWWW_TRANSITION_STEP="${AWWW_TRANSITION_STEP:-2}"
+
+while true; do
+	find "$1" -type f \
+	| while read -r img; do
+		echo "$(</dev/urandom tr -dc a-zA-Z0-9 | head -c 8):$img"
+	done \
+	| sort -n | cut -d':' -f2- \
+	| while read -r img; do
+		awww img --resize="$RESIZE_TYPE" "$img"
+		sleep "${2:-$DEFAULT_INTERVAL}"
+	done
+done