it's a Proof-of-Concept to automatically create a XSPF playlist from .flac files, it's kinda messy i know ;D

playlist-creator.sh

rm -f list.xspf
cd $1 # use the destination path as first parameter and use the web folder destination as second parameter ( /var/Music & Music for example)
cp /usr/local/bin/playlist-template-header ./list.xspf
for f in *.flac; do
        metaflac --export-tags-to=tags.tmp --export-picture-to=covers/"$f".png "$f"
        cp /usr/local/bin/playlist-template ./list.tmp
        title=$(grep -P 'TITLE=' tags.tmp | sed 's/\<TITLE\>//g' | sed 's/=//g')
        album=$(grep -P 'ALBUM=' tags.tmp | sed 's/\<ALBUM\>//g' | sed 's/=//g')
        albumartist=$(grep -P 'ALBUMARTIST=' tags.tmp | sed 's/\<ALBUMARTIST\>//g' | sed 's/=//g')
        tracknumber=$(grep -P 'TRACKNUMBER=' tags.tmp | sed 's/\<TRACKNUMBER\>//g' | sed 's/=//g')
        length=$(grep -P 'LENGTH=' tags.tmp | sed 's/\<LENGTH\>//g' | sed 's/=//g' | sed 's/$/000/')
        image=$(echo example.com/music/$(echo $2)/covers/$(echo $f).png)
        image1=$(python -c "import urllib;print urllib.quote(raw_input())" <<< "$image") # converts into URL format
        image2=$(echo https://$(echo $image1))
        location=$(echo example.com/music/$(echo $2)/$(echo $f))
        location1=$(python -c "import urllib;print urllib.quote(raw_input())" <<< "$location") # converts into URL format
        location2=$(echo https://$(echo $location1))
        sed -i "s~\<title\>>~&$title~" list.tmp
        sed -i "s~\<album\>>~&$album~" list.tmp
        sed -i "s~\<creator\>>~&$albumartist~" list.tmp
        sed -i "s~\<trackNum\>>~&$tracknumber~" list.tmp
        sed -i "s~\<duration\>>~&$length~" list.tmp
        sed -i "s~\<image\>>~&$image2~" list.tmp
        sed -i "s~\<location\>>~&$location2~" list.tmp
        cat list.tmp >> list.xspf                                                                                                                                                                                          rm list.tmp                                                                                                                                                                                                        rm tags.tmp                                                                                                                                                                                                done
cat /usr/local/bin/playlist-template-end >> list.xspf
chown -R www-data:www-data covers/
chmod 644 covers/*
chown www-data:www-data list.xspf
chmod 644 list.xspf

playlist-template-end

        </trackList>
</playlist>

playlist-template-header

<?xml version="1.0" encoding="UTF-8"?>
<playlist version="1" xmlns="http://xspf.org/ns/0/">
        <trackList>