Use yt-dlp if available, allow to set preferred binary.

README.adoc

@@ -6,7 +6,8 @@
 Download YouTube-feeds as if they are podcasts. Files will be put in
 `<download_dir>/uploader/title.extension`.
 
-This should work for all sites `youtube-dl` supports, but I only tested YouTube.
+This should work for all sites `youtube-dl` supports, but I only tested
+YouTube. `yt-dlp` will be preferred if available.
 
 == Features
 
@@ -50,6 +51,7 @@ ytdl_extra_args="--quiet"
 | *ytdl_format*     | Same syntax as link:{url-ytdl-format}[youtube-dl --format]. Default is "best".
 | *max_videos*      | Maximum number of videos to consider per feed. Default is to consider all.
 | *ytdl_extra_args* | Extra arguments for `youtube-dl`. Optional.
+| *ytdl_binary*     | Binary to use instead of `yt-dlp` or `youtube-dl`.
 |===============================================================================
 
 [WARNING]

download-yt-feeds

@@ -55,6 +55,13 @@ function main()
     [[ -z "${keep_for_days}" ]] && die 2 "keep_for_days not specified."
     [[ -z "${ytdl_format}" ]] && local ytdl_format="best"
     [[ -z "${max_videos}" ]] && local max_videos="last"
+    if [[ -z "${ytdl_binary}" ]]; then
+        if command -v yt-dlp > /dev/null; then
+            local ytdl_binary="yt-dlp"
+        else
+            local ytdl_binary="youtube-dl"
+        fi
+    fi
 
     find "${download_dir}" -type f -mtime +"${keep_for_days}" -delete
     find "${download_dir}" -maxdepth 1 -type d -exec \
@@ -64,7 +71,7 @@ function main()
     local files_before="$(find "${download_dir}" -type f)"
     local -a feedlist=("${(@Q)${(z)$(read_feedlist)}}")
     for feed in ${feedlist}; do
-        youtube-dl \
+        ${ytdl_binary} \
             --download-archive "$(get_config_path)/downloaded" \
             --dateafter "now-${keep_for_days}days" \
             --output "${download_dir}/%(uploader)s/%(title)s.%(ext)s" \
@@ -72,7 +79,7 @@ function main()
             --playlist-end "${max_videos}" \
             ${=ytdl_extra_args} \
             "${feed}"
-        # [[ ${?} -eq 0 ]] || die 3 "youtube-dl returned an error."
+        # [[ ${?} -eq 0 ]] || die 3 "${ytdl_binary} returned an error."
     done
     local files_after="$(find "${download_dir}" -type f)"
     local time="$(date +'%F_%R')"