initial commit

eww/get-cover.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+
+# This script fetches and caches album art for the current song.
+# It's designed to be called by EWW and is optimized to minimize
+# network and disk I/O.
+
+WIDGET_DIR=$(dirname "$0")
+DEFAULT_COVER="$WIDGET_DIR/assets/DEFAULTImage.jpeg"
+CACHE_DIR="$HOME/.cache/eww/music-widget"
+mkdir -p "$CACHE_DIR"
+
+# Function to safely exit with the default cover
+show_default_cover() {
+    echo "$DEFAULT_COVER"
+    exit 0
+}
+
+# Get the art URL. Exit if player is not running or no URL is available.
+COVER_URL=$(playerctl metadata mpris:artUrl 2>/dev/null)
+if [[ -z "$COVER_URL" ]]; then
+    show_default_cover
+fi
+
+# If it's a local file (file://), decode the path and use it directly.
+if [[ "$COVER_URL" == file://* ]]; then
+    # URL-decode the path to handle special characters like spaces
+    LOCAL_PATH=$(printf '%b' "${COVER_URL#file://}")
+    if [[ -f "$LOCAL_PATH" ]]; then
+        echo "$LOCAL_PATH"
+        exit 0
+    else
+        show_default_cover
+    fi
+fi
+
+# For web URLs, we hash the URL to create a unique filename for caching.
+URL_HASH=$(echo -n "$COVER_URL" | md5sum | awk '{print $1}')
+# Try to get a file extension from the URL, default to .jpg if it's weird.
+EXTENSION="${COVER_URL##*.}"
+if [[ "$EXTENSION" == "$COVER_URL" ]] || [[ ${#EXTENSION} -gt 5 ]]; then
+    EXTENSION="jpg"
+fi
+CACHED_COVER="$CACHE_DIR/$URL_HASH.$EXTENSION"
+
+# If the cover is not already cached, download it.
+if [ ! -f "$CACHED_COVER" ]; then
+    # Download with a 5-second timeout. If it fails or the downloaded file is empty,
+    # clean up and show the default cover.
+    curl -s -L --max-time 5 "$COVER_URL" -o "$CACHED_COVER"
+    if [[ $? -ne 0 ]] || [[ ! -s "$CACHED_COVER" ]]; then
+        rm -f "$CACHED_COVER"
+        show_default_cover
+    fi
+fi
+
+# As a final sanity check, ensure the cached file is a valid image.
+# If not, remove the junk file and show the default cover.
+if file "$CACHED_COVER" | grep -qE 'image|jpeg|png|jpg|gif'; then
+    echo "$CACHED_COVER"
+else
+    rm -f "$CACHED_COVER"
+    show_default_cover
+fi
+
+exit 0