174 lines
4 KiB
Org Mode
174 lines
4 KiB
Org Mode
* tyt
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:PROPERTIES:
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:header-args: :tangle tyt :shebang "#!/bin/sh"
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:END:
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Terminal YouTube (*tyt*) is a small bash script that lets you play YouTube videos 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 scripts 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 sh
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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"
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exit 1
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elif ! 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"
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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 sh
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function print_usage {
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echo "tyt [ -a* | --alternative ] \"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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Additionally we have exacly one mandatory quoted string as query.
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#+begin_src sh
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alternative=0
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format="flac"
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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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-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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#+begin_src sh
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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[31m\e[1mtyt\e[0m |\n"
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echo -ne " \e[1m=======\e[0m\n\n"
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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 sh
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i=0
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n=$((alternative+1))
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echo -ne "Searching for: \e[33m\e[1m$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 $i in
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0)
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appendix=" "
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;;
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1)
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appendix=". "
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;;
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2)
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appendix=".. "
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;;
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,*)
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appendix="..."
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;;
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esac
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echo -ne "Searching for: \e[33m\e[1m$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[33m\e[1m$query\e[0m \n"
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urls=$(echo $results | jq '.webpage_url' | tr -d '"')
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OLDIFS=$IFS
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IFS=$'\n'
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results=($results)
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urls=($urls)
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IFS=$OLDIFS
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result=${results[$alternative]}
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url=${urls[$alternative]}
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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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#+begin_src sh
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i=0
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title=$(echo $result | jq '.fulltitle')
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title="${title%\"}"
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title="${title#\"}"
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echo -ne "Playing: \e[32m\e[1m$title\e[0m"
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mpv $url &> /dev/null
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#+end_src
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