Create a script to download the NASA Astronomy Picture of the Day

.local/bin/get-nasa-apod

@@ -0,0 +1,34 @@
+#! /usr/bin/bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+API_KEY="${NASA_API_KEY:-DEMO_KEY}"
+if [ "${API_KEY}" = "DEMO_KEY" ]; then
+    echo "No API key set! using demo key."
+fi
+
+WALLPAPERS="$(systemd-path user)"/Wallpapers
+
+mkdir --parents "${WALLPAPERS}"
+
+APOD_URL="https://api.nasa.gov/planetary/apod?api_key=${API_KEY}"
+response="$(curl --silent "${APOD_URL}")"
+picture_date="$(printf '%s' "${response}" | jq --raw-output .date)"
+picture_url="$(printf '%s' "${response}" | jq --raw-output .hdurl)"
+
+extension="${picture_url##*.}"
+filename="${picture_date}.${extension}"
+outfile="${WALLPAPERS}/${filename}"
+
+curl \
+    --location \
+    --output "${outfile}" \
+    --silent \
+    "${picture_url}"
+ln \
+    --force \
+    --symbolic \
+    "${outfile}" \
+    "${WALLPAPERS}/today.${extension}"
+swaymsg reload