Another YouTube downloader script.

ytdl-ii.sh

#!/bin/bash

# Copyright (c) 2021 Gonçalo Baltazar <me@goncalomb.com>
# MIT License

# pip3 install --upgrade youtube-dl
# ffmpeg -y -loglevel repeat+info -i file:video.xyz -i file:audio.xyz -c copy -map 0:v:0 -map 1:a:0 file:out.mkv

set -eo pipefail
cd -- "$(dirname -- "$0")"

VERSION=2.0

now() {
    date +%s.%N
}

ytdl() {
    yt-dlp \
    --no-continue \
    --write-description \
    --write-info-json \
    --write-annotations \
    --write-thumbnail \
    --write-all-thumbnails \
    --all-subs \
    --write-sub \
    --write-pages \
    --playlist-reverse \
    -o '%(id)s.%(ext)s' \
    -f bestvideo+bestaudio/best \
    --keep-video \
    -i \
    -v \
    "$@"
}

dl_single() {
    SVC=$1
    ARC_NAME=$2
    ID=$3
    URL=$4
    CMD=$5

    if [ -f "data/archive.txt" ] && grep -F "$ARC_NAME" "data/archive.txt" > /dev/null; then
        echo "$ID already in the archive"
        return
    fi

    START=$(now)
    RUN_DIR="data/$SVC/single/$ID.$START"
    mkdir -p "$RUN_DIR"
    (
        cd "$RUN_DIR"
        end() {
            now > end
            echo end
        }
        trap end EXIT
        echo "$VERSION" > version
        "$CMD" --download-archive "../../../archive.txt" "$URL" 2>&1 | tee -i log.txt
    )
}

youtube_single() {
    dl_single youtube "youtube $1" "$1" "https://www.youtube.com/watch?v=$1" ytdl
}

twitch_single() {
    dl_single twitch "twitchvod v$1" "$1" "https://www.twitch.tv/videos/$1" ytdl
}

if [ "$1" == "youtube-single" ]; then
    youtube_single "$2"
elif [ "$1" == "twitch-single" ]; then
    twitch_single "$2"
else
    echo "youtube-single,twitch-single?"
    exit 1
fi

exit