dotfiles/home/default/scripts/generate-mpd-playlists

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#!/usr/bin/env sh
set -ou pipefail
# Generates playlists for all mp3 and flac files in a directory, ignoring itself in the "parent" folder
PLAYLIST_FOLDER="/home/default/Music/playlists/mpd" # Playlist folder for mpd
PREFIX="music/playlists" # relative links to add to playlists, based on mpd virtual file structure
EXTENSIONS=("mp3" "opus" "flac" "m4a" "mkv" "webm")
# Disable nullglob and set pattern matching to fix spaces
shopt -s nullglob
SAVEIFS=$IFS
IFS=$(echo -en "\n\b")
cd $PLAYLIST_FOLDER || { echo "Could not cd into PLAYLIST_FOLDER"; exit 1; }
parent=`basename $PWD`
# Delete old generated playlists
if [[ -f "*.gen.m3u" ]]; then
rm *.gen.m3u
fi
if [[ -f ".trackNames" ]]; then
rm .trackNames
fi
# For all playlist directories to generate
for playlistDir in ../*; do
if [[ -d "$playlistDir" ]] && [[ "$playlistDir" != "../$parent" ]]; then
# playlist filename needed for mpd
playlist=`echo "$playlistDir" | sed "s/^\.\.\///g"`
# escaped version of filename needed for bash
escaped=`printf '%q\n' "$playlist"`
# echo "playlist=$playlist"
# echo "escaped=$escaped"
# touch file
> "$playlist.gen.m3u"
# write all files with newlines
> .track-names
for EXT in ${EXTENSIONS[@]}; do
# echo `find "../$playlist" -mindepth 1 -type f -name "*.$EXT" -printf x | wc -c`
if [[ `find "../$playlist" -mindepth 1 -type f -name "*.$EXT" -printf x | wc -c` != 0 ]]; then
ls -1 ../$escaped/*.$EXT >> .track-names 2> /dev/null
# echo `ls -1 ../$playlist/*.$EXT >> 2> /dev/null`
fi
done
# echo `cat .track-names`
cat .track-names | while IFS="" read -r song || [ -n "$song" ] ; do
unprefixed=`echo "$song" | sed "s/^\.\.\///g"`
# echo "$PREFIX/$unprefixed"
echo "$PREFIX/$unprefixed" >> "$playlist.gen.m3u"
done < .track-names
if [[ -f ".track-names" ]]; then
rm .track-names
fi
fi
done
# Use mpc to update mpd database
update-mpd > /dev/null
restart-music
IFS=$SAVEIFS