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2
.travis.yml
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2
.travis.yml
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script:
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- shellcheck -s sh subs
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201
subs
Executable file
201
subs
Executable file
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#!/bin/sh
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#
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# Watch your youtube subscriptions without a youtube account
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# via curl, dmenu, mpv and basic unix commands.
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#
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# The $SUBS_FILE is a text file containing usernames or channel IDs
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# comments and blank lines are ignored.
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#
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# For more information and examples, see:
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# http://github.com/mitchweaver/subs
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#
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# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*#
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# -*-*-*-*-* Settings *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*--*-*-*
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: "${SUBS_FILE:=~/files/subs.txt}"
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: "${SUBS_MENU_PROG:='dmenu -p Subs:'}"
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: "${PLUMBER:=head}"
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: "${SUBS:=${XDG_CACHE_HOME:-~/.cache}/subs}"
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: "${SUBS_LINKS:=$SUBS/links}"
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: "${SUBS_CACHE:=$SUBS/cache}"
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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SEP=^^^^^ # shouldn't need to change this
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# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
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die() {
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>&2 printf '%s\n' "$*"
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exit 1
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}
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usage() {
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die 'Usage: subs [-m no-video] [-g gen-links] [-u update-cache]'
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}
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# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
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# Synopsis: $SUBS_FILE [txt] -> $SUBS_LINKS [xml links]
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#
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# Updates local cache of xml subscription links from the
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# subscription file containing either usernames or channel ids.
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# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
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gen_links() {
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:>"$SUBS_LINKS"
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count=0
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total=$(sed -e '/^$/d' -e '/^#/d' <"$SUBS_FILE" | wc -l)
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while read -r line ; do
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# ignore comments and blank lines
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case $line in ''|' '|'#'*) continue ;; esac
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# strip off in-line comments and any trailing whitespace
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line=${line%%#*}
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line=${line%% *}
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count=$(( count + 1 ))
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printf "[%s/%s] fetching channel xml link for %s\n" "$count" "$total" "$line"
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case $line in
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UC*)
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# YT channel IDs always begin with 'UC' and are 24 chars long
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if [ ${#line} -eq 24 ] ; then
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printf 'https://youtube.com/feeds/videos.xml?%s\n' \
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"channel_id=$line" >>"$SUBS_LINKS"
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continue
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fi
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esac
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# otherwise we are given a username, we must find out its channel ID
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curl -sfL --retry 10 "https://youtube.com/user/$line/about" | grep channel_id | \
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sed -e 's|www\.||' -e 's|.*href="||' -e 's|">.*||' >>"$SUBS_LINKS"
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done <"$SUBS_FILE"
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}
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# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
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# Synopsis: $1 [LINK] -> $SUBS_CACHE/$chan_name/concat [CHANNEL INFO]
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#
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# Takes a channel rss feed link and creates a file
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# with a line of its videos dates, titles, and urls.
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# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
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get_vids() {
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data=$(curl -sfL --retry 15 "$1")
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# hide the first <published> tag which is the channel
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# creation date
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data=${data#*\<\/published\>}
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chan=${data%%</name*}
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chan=${chan##*name>}
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printf "%s\n" "$data" | \
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while read -r line ; do
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case $line in
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*'link rel='*)
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line=${line#*href=\"}
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line=${line%\"/\>}
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line=https://${line#*www.}
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url=$line
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;;
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*'<published>'*)
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line=${line%+00:*}
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line=${line#*<published>}
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date=$line
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;;
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*'<media:title>'*)
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line=${line%</*}
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line=${line#*:title>}
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title=$line
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printf '%s\n' \
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"${date}${SEP}${chan}${SEP}${title}${SEP}${url}" \
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>>"$SUBS_CACHE/$chan"
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esac
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done
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}
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# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
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# Updates the local cache of subscriptions. ([-u] flag)
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# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
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update_subs() {
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[ -f "$SUBS_LINKS" ] || die 'Subs links have not been generated.'
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rm -r "${SUBS_CACHE:-?}" 2>/dev/null ||:
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mkdir -p "$SUBS_CACHE"
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total=$(wc -l <"$SUBS_LINKS")
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count=0
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while read -r link ; do
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count=$(( count + 1 ))
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printf 'starting job [%s/%s] for %s\n' "$count" "$total" "$link"
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get_vids "$link" &
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sleep 0.05
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done <"$SUBS_LINKS"
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count=0
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while [ "$count" -ne "$total" ] ; do
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count=$(printf '%s\n' "$SUBS_CACHE"/* | wc -l)
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printf "[%s/%s] waiting for fetch jobs to complete...\n" "$count" "$total"
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sleep 0.5
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done
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printf '%s\n\n' 'done!'
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}
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# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
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# Grab current cache of subscriptions, sort by date uploaded
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# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
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cat_subs() {
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[ -d "$SUBS_CACHE" ] || die 'Subs cache has not been retrieved.'
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sort -r "$SUBS_CACHE"/* | \
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while read -r line ; do
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chan=${line#*$SEP}
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chan=${chan%%$SEP*}
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title=${line#*$chan$SEP}
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title=${title%%$SEP*}
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date=${line%%$SEP*}
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date=${date#*-}
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date=${date%T*}
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printf '[%s %s] %s\n' "$date" "$chan" "$title"
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done
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}
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# Split the concatenated lines into entities, send to menu program.
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# Finally, pipe this result to the ${PLUMBER}.
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get_sel() {
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sel=$(cat_subs | $SUBS_MENU_PROG)
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[ "$sel" ] || die Interrupted
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chan="${sel#* }"
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chan="${chan%%] *}"
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title=${sel#*"$chan"\] }
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while read -r line ; do
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case $line in
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*"$SEP$title$SEP"*)
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url=${line##*$SEP}
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printf 'playing: %s\n' "$url"
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printf '%s\n' "$url" | $PLUMBER
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break
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esac
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done <"$SUBS_CACHE/$chan"
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}
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main() {
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mkdir -p "$SUBS"
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case ${1#-} in
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m)
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export MPV_OPTS="$MPV_OPTS --no-video"
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shift
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esac
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case ${1#-} in
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h) usage ;;
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g) gen_links ;;
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u) update_subs ;;
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c) cat_subs ;;
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*) get_sel
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esac
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}
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main "$@"
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