(yt-dlp): Add auto download script

files/scripts/yt-dlp/auto-playlist-yt-dlp.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -e
+
+DEFAULT_PLAYLIST_URL=""
+DOWNLOAD_DIR=""
+ARCHIVE_FILE="$DOWNLOAD_DIR/archive.txt"
+PLAYLIST_URL="${1:-$DEFAULT_PLAYLIST_URL}"
+
+if [ -z "$DOWNLOAD_DIR" ]; then
+  echo "No download dir set."
+  exit 1
+fi
+
+if [ ! -d "$DOWNLOAD_DIR" ]; then
+  mkdir -p "$DOWNLOAD_DIR"
+fi
+
+if command -v ffmpeg > /dev/null; then
+  yt-dlp --extract-audio \
+    --audio-format m4a \
+    --audio-quality 0 \
+    --download-archive "$ARCHIVE_FILE" \
+    -o "$DOWNLOAD_DIR/%(title)s.%(ext)s" \
+    "$PLAYLIST_URL"
+else
+  echo "You need ffmpeg first"
+  exit 1
+fi