275 lines
6.2 KiB
Org Mode
275 lines
6.2 KiB
Org Mode
* tyt
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:PROPERTIES:
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:header-args: :tangle tyt :shebang "#!/usr/bin/env bash"
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:END:
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Terminal YouTube (*tyt*) is a small bash script that lets you play YouTube videos by query from the command line.
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It is created via literate programming, you can find the code below.
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** Script
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*** Dependencies
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The dependencies of the script are:
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- [[https://stedolan.github.io/jq/][jq]]
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- [[https://mpv.io/][mpv]]
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- [[https://ytdl-org.github.io/youtube-dl/][youtube-dl]]
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Please make sure those are available on your system.
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If you are using the [[https://nixos.org/][Nix]] package manager, you can run =nix-shell= in the project directory.
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This will drop you into a shell with all requirements fulfilled.
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On the start of the script, it is checked if the dependencies are fulfilled.
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#+begin_src bash
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missing_dependencies=false
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if ! command -v jq &> /dev/null
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then
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echo -ne "\e[1mjq\e[0m was not found, please install it\n"
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missing_dependencies=true
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fi
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if ! command -v mpv &> /dev/null
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then
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echo -ne "\e[1mmpv\e[0m was not found, please install it\n"
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missing_dependencies=true
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fi
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if ! command -v youtube-dl &> /dev/null
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then
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echo -ne "\e[1myoutube-dl\e[0m was not found, please install it\n"
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missing_dependencies=true
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fi
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if [ "$missing_dependencies" = true ]
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then
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exit 1
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fi
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#+end_src
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*** Usage
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This function prints the usage of the script.
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#+begin_src bash
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function print_usage {
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echo "tyt [ (-a* | --alternative) | (-i | --interactive) | (-m | --music) ] \"QUERY\""
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}
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#+end_src
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*** Arguments
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At first we parse the arguments.
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We have the following flags:
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- =a*|alternative= :: Alternative video (optional); You can parse any amount of alternatives (e.g. =-aaa=)
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- =i|interactive= :: Interactive mode; Shows the first 10 results and queries for a selection; If this flag is set, =-a= is ignored
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- =m|music= :: Play only the audio track of the video
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Additionally we have exacly one mandatory quoted string as query.
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#+begin_src bash
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alternative=0
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format="flac"
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interactive=false
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music=false
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help=false
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for arg in "$@"
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do
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case $arg in
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-a*)
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alternative="${arg:1}"
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alternative="${#alternative}"
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shift
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;;
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--alternative)
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alternative=1
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shift
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;;
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-i|--interactive)
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interactive=true
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shift
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;;
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-m|--music)
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music=true
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shift
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;;
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-h|--help)
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help=true
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shift
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;;
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,*)
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other_arguments+=("$1")
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shift
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;;
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esac
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done
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if [ "$help" = true ]
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then
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print_usage
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exit 0
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fi
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if [ "${#other_arguments[@]}" != "1" ]
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then
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print_usage
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exit 1
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fi
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query="${other_arguments[0]}"
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#+end_src
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*** Greeter
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If the arguments match, print a greeter.
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Another greeter is printed if the flag =-m= is set.
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Make sure your terminal emulator supports Unicode to see the notes.
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#+begin_src bash
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if [ "$music" = false ]
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then
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echo -ne "\n \e[1m\ /\e[0m\n"
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echo -ne " \e[1m=======\e[0m\n"
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echo -ne " \e[1m| \e[31mtyt\e[0m \e[1m|\e[0m\n"
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echo -ne " \e[1m=======\e[0m\n\n"
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else
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echo -ne "\n \e[1m\ /\e[0m ♫\n"
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echo -ne " \e[1m=======\e[0m ♫\n"
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echo -ne " \e[1m| \e[31mtyt\e[0m \e[1m|\e[0m\n"
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echo -ne " \e[1m=======\e[0m\n\n"
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fi
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#+end_src
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*** Get URL
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To play a video, we need to get a valid URL.
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Since there are sometimes parsing errors of the JSON response, we use an endless loop to try until we get a valid response.
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The first /n/ URLs are saved if an alternative download is requested.
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#+begin_src bash
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i=0
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if [ "$interactive" = true ]
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then
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n=10
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else
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n=$((alternative+1))
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fi
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echo -ne "Searching for: \e[34m\e[1m$query\e[0m \r"
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until results=$(youtube-dl --default-search "ytsearch" -j "ytsearch$n:$query") &> /dev/null
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do
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case $i in
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0)
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appendix=" "
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;;
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1)
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appendix=". "
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;;
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2)
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appendix=".. "
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;;
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,*)
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appendix="..."
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;;
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esac
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echo -ne "Searching for: \e[34m\e[1m$query\e[0m $appendix\r"
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i=$(((i + 1) % 4))
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sleep 1
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done
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echo -ne "Searching for: \e[34m\e[1m$query\e[0m \n"
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urls=$(echo $results | jq '.webpage_url' | tr -d '"')
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titles=$(echo $results | jq '.fulltitle' | tr -d '"')
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uploaders=$(echo $results | jq '.uploader' | tr -d '"')
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OLDIFS=$IFS
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IFS=$'\n'
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urls=($urls)
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titles=($titles)
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uploaders=($uploaders)
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IFS=$OLDIFS
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#+end_src
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*** Interactive selection
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If the interactive flag is present, show the first ten results and query for a video to play.
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#+begin_src bash
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if [ "$interactive" = true ]
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then
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echo ""
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selections=(0 1 2 3 4 5 6 7 8 9)
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for i in ${selections[@]}
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do
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echo -ne " \e[1m$i\e[0m: ${titles[$i]} (\e[33m\e[1m${uploaders[$i]}\e[0m)\n"
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done
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echo -ne "\nSelection: "
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read selection
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while [[ ! "${selections[@]}" =~ "${selection}" ]]
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do
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echo -ne "Not valid, try again: "
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read selection
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done
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echo ""
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url=${urls[$selection]}
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title=${titles[$selection]}
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uploader=${uploaders[$selection]}
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else
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url=${urls[$alternative]}
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title=${titles[$alternative]}
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uploader=${uploaders[$alternative]}
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fi
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#+end_src
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*** Play video
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Finally the video is played via mpv.
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If the =-m= flag is set, only the audio track is played.
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In interaction mode, another video is queried to be played.
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#+begin_src bash
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function play {
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echo -ne "Playing: \e[32m\e[1m$2\e[0m (\e[33m\e[1m$3\e[0m)\n"
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if [ "$music" = true ]
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then
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mpv --no-video $1 &> /dev/null
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else
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mpv $1 &> /dev/null
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fi
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}
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play "$url" "$title" "$uploader"
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if [ "$interactive" = true ]
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then
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quit=false
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selections=(0 1 2 3 4 5 6 7 8 9 q)
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while [ ! "$quit" = true ]
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do
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echo -ne "\nSelect another or press [q] to quit: "
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read selection
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while [[ ! "${selections[@]}" =~ "${selection}" ]]
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do
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echo -ne "Not valid, try again: "
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read selection
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done
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if [ ! "$selection" = "q" ]
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then
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echo ""
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url=${urls[$selection]}
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title=${titles[$selection]}
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uploader=${uploaders[$selection]}
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play "$url" "$title" "$uploader"
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else
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quit=true
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fi
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done
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fi
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#+end_src
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