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#!/usr/bin/env bash
# Requires:
# * curl
# * fzf | rofi
# * jq
# * youtube-dl
# * hq | pup (recomended, although optional)
rofi="auto"
ttyecho(){
# Same as echo but always to tty
echo "$@" > /dev/tty
}
urlencodespecial() {
# urlencode <string>
old_lc_collate=$LC_COLLATE
LC_COLLATE=C
local length="${#1}"
for (( i = 0; i < length; i++ )); do
local c="${1:i:1}"
case "$c" in
[a-zA-Z0-9.~_-]) printf "$c" ;;
' ') printf "+" ;;
*) printf '%%%02X' "'$c" ;;
esac
done
LC_COLLATE=$old_lc_collate
}
forceread(){
# Read but always from tty and will keep asking until a non-empty value is
# given
# First param is given is prompt
local answer=""
local first="true"
while [ -z "$answer" ]; do
[ "$first" == "true" ] || ttyecho "Please provide an answer"
first="false"
ttyecho -n "$1: "
read answer < /dev/tty
done
echo "$answer"
}
useRofi(){
[ "$rofi" = "yes" ] && return 0
local isxclient=$( readlink /dev/fd/2 | grep -q 'tty' && [[ -n $DISPLAY ]] ; echo $? )
if [[ ! -t 2 || $isxclient == "0" ]]; then
return 0
else
return 1
fi
}
getSearchTerm(){
if useRofi; then
# Rofi can't reload the suggestions so just display a search box
echo "" | rofi -dmenu -lines 0
else
# Uses fzf to get a search term
# It will filter suggestions using youtube's autocomplete
export -f getSearchSuggestions
export -f urlencodespecial
echo "" | fzf --bind 'change:reload:bash -c "getSearchSuggestions {q}" || true' \
--header="Search Suggestions" \
--phony \
--height=50% --layout=reverse
fi
}
getSearchSuggestions(){
# Takes a query and outputs the search suggestions that youtube makes
query="$(urlencodespecial "$1")"
curl "https://clients1.google.com/complete/search?client=youtube&hl=en&gl=gb&gs_rn=64&gs_ri=youtube&ds=yt&cp=5&gs_id=4e&q=$query&xhr=t&xssi=t" |
tail -n 1 | jq -r '.[1][][0]'
}
performSearch(){
# Returns the json object yt gives us
local raw="$1"
local url="https://www.youtube.com/results?search_query=$(urlencodespecial "$raw")"
if type -p hq > /dev/null; then
curl -s "$url" | hq script data | grep 'ytInitialData' | head -n 1 | grep -o '{.*}'
elif type -p pup > /dev/null; then
curl -s "$url" | pup script | grep 'ytInitialData' | head -n 1 | grep -o '{.*}'
else
curl -s "$url" | sed -e 's/<script[^>]*>/\n/g' -e 's/<\/script>/\n/g' | grep 'ytInitialData' | head -n 1 | grep -o '{.*}'
fi
}
extractVideoInfo(){
jq '..|.videoRenderer?' | sed '/^null$/d' |
jq -r '{title: .title.runs[0].text,
channel: .longBylineText.runs[0].text,
views: .shortViewCountText.simpleText,
time: .lengthText.simpleText,
age: .publishedTimeText.simpleText,
video: .videoId
}'
}
chooseVideo(){
if useRofi; then
( jq -r '[ .title, .channel, .views, .time, .age, .video ] | @tsv') |
column -t -s" " | sed $'s/ \([^ ]\)/\u00a0\\1/g' |
rofi -dmenu
else
(echo -e "Title\tChannel\tViews\tTime\tAge\tId"
jq -r '[ .title, .channel, .views, .time, .age, .video ] | @tsv') |
column -t -s" " | sed $'s/ \([^ ]\)/\u00a0\\1/g' |
fzf --header-lines="1" --with-nth=1,2,3,4,5 --delimiter=$'\u00a0'
fi
}
chooseQuality(){
if [ -n "$1" ]; then
videoId="$1"
else
videoId="$(cat - | awk -F $'\u00a0' '{print $6}')"
fi
if useRofi; then
code="$( (
echo "bb Best of Both"
youtube-dl "$videoId" -F | sed -n '/format code/,$ p' | sed 1d;
) | rofi -dmenu -prompt "Quality " -m | cut -d ' ' -f 1 )"
else
code="$( (
echo "bb Best of Both"
youtube-dl "$videoId" -F | sed -n '/format code/,$ p' | sed 1d;
) | fzf --prompt "Quality " -m | cut -d ' ' -f 1 )"
fi
code="$(echo "$code" | tr '\n' '+' | sed 's/+$//')"
case "$code" in
"bb") mpv "https://www.youtube.com/watch?v=$videoId" --ytdl-format="bestvideo+bestaudio" ;;
*) mpv "https://www.youtube.com/watch?v=$videoId" --ytdl-format="$code" ;;
esac
}
main(){
local url=""
local videoID=""
local searchTerm=""
while [[ "$1" = -?* ]]; do
case "$1" in
-u|--url)
if [ -n "$2" ]; then
url="$2"
shift
else
url="$(cat -)"
fi
shift
;;
--rofi)
rofi=yes
shift
;;
esac
done
if [ -n "$url" ]; then
case "$url" in
# If it contains an equals sign, let's assume it's a url
# Get the value of the v parameter
*=*) videoID="$(echo "$url" | grep -Eo '(\?|&)v=[^?&]*' | cut -d '=' -f 2)" ;;
# If there isn't an =, assume it is just the video ID
*) videoID="$url"
esac
chooseQuality "$videoID"
else
searchTerm="$*"
[ -z "$searchTerm" ] && searchTerm="$(getSearchTerm)"
performSearch "$searchTerm" | extractVideoInfo | chooseVideo | chooseQuality
fi
}
main "$@"