kunst/kunst

249 lines
7.4 KiB
Bash
Executable File

#!/usr/bin/env bash
# ┬┌─┬ ┬┌┐┌┌─┐┌┬┐
# ├┴┐│ ││││└─┐ │
# ┴ ┴└─┘┘└┘└─┘ ┴
# Created by Siddharth Dushantha
#
# Dependencies: sxiv, imagemagick, bash, ffmpeg, mpc, jq
VERSION=1.2.3
COVER=/tmp/kunst.jpg
MUSIC_DIR=~/Music/
SIZE=250x250
show_help() {
echo "usage: kunst [-h] [--size "px"] [--music_dir "path/to/dir"] [--silent] [--version]"
echo " "
echo "┬┌─┬ ┬┌┐┌┌─┐┌┬┐"
echo "├┴┐│ ││││└─┐ │"
echo "┴ ┴└─┘┘└┘└─┘ ┴"
echo "Download and display album art or display embedded album art"
echo " "
echo "optional arguments:"
echo " -h, --help show this help message and exit"
echo " --size what size to display the album art in"
echo " --music_dir the music directory which MPD plays from"
echo " --silent dont show the output"
echo " --version show the version of kunst you are using"
}
# Parse the arguments
options=$(getopt -o h --long size:,music_dir:,version,silent,help -- "$@")
eval set -- "$options"
while true; do
case "$1" in
--size)
shift;
SIZE=$1
;;
--music_dir)
shift;
MUSIC_DIR=$1
;;
-h|--help)
show_help
exit
;;
--version)
echo $VERSION
exit
;;
--silent)
SILENT=true
;;
--)
shift
break
;;
esac
shift
done
# This is a base64 endcoded image which will be used if
# the file does not have an emmbeded album art.
# The image is an image of a music note
read -d '' MUSIC_NOTE << EOF
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
EOF
is_connected() {
# Check if internet is connected. We are using api.deezer.com to test
# if the internet is connected because if api.deezer.com is down or
# the internet is not connected this script will work as expected
if ping -q -c 1 -W 1 api.deezer.com >/dev/null; then
connected=true
else
if [ ! $SILENT ];then
echo "kunst: unable to check online for the album art"
fi
connected=false
fi
}
get_cover_online() {
# Check if connected to internet
is_connected
if [ $connected == false ];then
ARTLESS=true
return
fi
# Try to get the album cover online from api.deezer.com
API_URL="http://api.deezer.com/search/autocomplete?q=$(mpc current)" && API_URL=${API_URL//' '/'%20'}
# Extract the albumcover from the json returned
#IMG_URL=$(curl -s "$API_URL" | jq -r '.playlists.data[0] | .picture_big')
IMG_URL=$( curl -s "$API_URL" | jq -r '.tracks.data[0].album.cover_big')
if [ "$IMG_URL" = '' ] || [ "$IMG_URL" = 'null' ];then
if [ ! $SILENT ];then
echo "error: cover not found online"
fi
ARTLESS=true
else
if [ ! $SILENT ];then
echo "kunst: cover found online"
fi
curl -o $COVER -s $IMG_URL
eyeD3 --add-image $COVER:FRONT_COVER $MUSIC_DIR$(mpc current -f %file%)
ARTLESS=false
fi
}
write_tag(){
#writes down song data if absent
#uses eyeD3
eyeD3 -v ~/Music/$(mpc current -f %file%) | egrep "None|null" && tags="0" || tags="1"
if [ $tags -eq "0" ] ;then
echo "Some tags missing"
API_URL="http://api.deezer.com/search/autocomplete?q=$(mpc current)" && API_URL=${API_URL//' '/'%20'}
#album
echo "writing down album name"
eyeD3 -A "$( curl -s "$API_URL" | jq -r '.tracks.data[0].album.title')" $MUSIC_DIR$(mpc current -f %file%)
#album artist
echo "writing down album artist"
eyeD3 -b "$( curl -s "$API_URL" | jq -r '.tracks.data[0].artist.name')" $MUSIC_DIR$(mpc current -f %file%)
else
echo "All tags are present"
fi
}
update_cover() {
# Extract the album art from the mp3 file and dont show the messsy
# output of ffmpeg
ffmpeg -i "$MUSIC_DIR$(mpc current -f %file%)" $COVER -y &> /dev/null
# Get the status of the previous command
STATUS=$?
# Check if the file has a embbeded album art
if [ $STATUS -eq 0 ];then
if [ ! $SILENT ];then
echo "kunst: extracted album art"
fi
ARTLESS=false
else
DIR="$MUSIC_DIR$(dirname "$(mpc current -f %file%)")"
if [ ! $SILENT ];then
echo "kunst: inspecting $DIR"
fi
# Check if there is an album cover/art in the folder.
# Look at issue #9 for more details
for CANDIDATE in "$DIR/cover."{png,jpg}; do
if [ -f "$CANDIDATE" ]; then
STATUS=0
ARTLESS=false
convert "$CANDIDATE" $COVER
if [ ! $SILENT ];then
echo "kunst: found cover.png"
fi
fi
done
fi
if [ $STATUS -ne 0 ];then
if [ ! $SILENT ];then
echo "error: file does not have an album art"
fi
get_cover_online
fi
# Resize the image to 250x250
if [ $ARTLESS == false ]; then
convert $COVER -resize $SIZE $COVER
if [ ! $SILENT ];then
echo "kunst: resized album art to $SIZE"
fi
fi
}
pre_exit() {
# Get the proccess ID of kunst and kill it.
# We are dumping the output of kill to /dev/null
# because if the user quits sxiv before they
# exit kunst, an error will be shown
# from kill and we dont want that
kill -9 $(cat /tmp/kunst.pid) &> /dev/null
}
main() {
# Flag to run some commands only once in the loop
FIRST_RUN=true
while true; do
update_cover
write_tag
if [ $ARTLESS == true ];then
# Dhange the path to COVER because the music note
# image is a png not jpg
COVER=/tmp/kunst.jpg
# Decode the base64 encoded image and save it
# to /tmp/kunst.png
echo "$MUSIC_NOTE" | base64 --decode > $COVER
fi
if [ ! $SILENT ];then
echo "kunst: swapped album art to $(mpc current)"
printf '%*s\n' "${COLUMNS:-$(tput cols)}" '' | tr ' ' -
fi
if [ $FIRST_RUN == true ]; then
FIRST_RUN=false
# Display the album art using sxiv
sxiv -g $SIZE -b $COVER -N "Kunst" &
# Save the process ID so that we can kill
# sxiv when the user exits the script
echo $! >/tmp/kunst.pid
fi
# Waiting for an event from mpd; play/pause/next/previous
# this is lets kunst use less CPU :)
mpc idle &> /dev/null
if [ ! $SILENT ];then
echo "kunst: received event from mpd"
fi
done
}
# Disable CTRL-Z because if we allowed this key press,
# then the script would exit but, sxiv would still be
# running
trap "" SIGTSTP
trap pre_exit EXIT
main