Setting Polybar

i3/.config/polybar/scripts/get_spotify_status.sh

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+#!/bin/bash
+
+# The name of polybar bar which houses the main spotify module and the control modules.
+PARENT_BAR="now-playing"
+PARENT_BAR_PID=$(pgrep -a "polybar" | grep "$PARENT_BAR" | cut -d" " -f1)
+
+# Set the source audio player here.
+# Players supporting the MPRIS spec are supported.
+# Examples: spotify, vlc, chrome, mpv and others.
+# Use `playerctld` to always detect the latest player.
+# See more here: https://github.com/altdesktop/playerctl/#selecting-players-to-control
+PLAYER="playerctld"
+
+# Format of the information displayed
+# Eg. {{ artist }} - {{ album }} - {{ title }}
+# See more attributes here: https://github.com/altdesktop/playerctl/#printing-properties-and-metadata
+FORMAT="{{ title }} - {{ artist }}"
+
+# Sends $2 as message to all polybar PIDs that are part of $1
+update_hooks() {
+    while IFS= read -r id
+    do
+        polybar-msg -p "$id" hook spotify-play-pause $2 1>/dev/null 2>&1
+    done < <(echo "$1")
+}
+
+PLAYERCTL_STATUS=$(playerctl --player=$PLAYER status 2>/dev/null)
+EXIT_CODE=$?
+
+if [ $EXIT_CODE -eq 0 ]; then
+    STATUS=$PLAYERCTL_STATUS
+else
+    STATUS="No player is running"
+fi
+
+if [ "$1" == "--status" ]; then
+    echo "$STATUS"
+else
+    if [ "$STATUS" = "Stopped" ]; then
+        echo "No music is playing"
+    elif [ "$STATUS" = "Paused"  ]; then
+        update_hooks "$PARENT_BAR_PID" 2
+        playerctl --player=$PLAYER metadata --format "$FORMAT"
+    elif [ "$STATUS" = "No player is running"  ]; then
+        echo "$STATUS"
+    else
+        update_hooks "$PARENT_BAR_PID" 1
+        playerctl --player=$PLAYER metadata --format "$FORMAT"
+    fi
+fi
+

i3/.config/polybar/scripts/launch.sh

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+#!/usr/bin/env bash
+
+DIR="$HOME/.config/polybar"
+
+get_bars () {
+    find -H $DIR -name "config.ini" | xargs cat | grep -e "\[bar\/" | sort -u | sed "s/\[bar\//    /g" | sed "s/.$//g"
+}
+
+error () {
+cat <<- EOF
+Usage : launch.sh [bar] [theme]
+
+bars (defined in any config.ini):
+EOF
+
+get_bars
+
+cat <<- EOF
+themes:
+    rounded
+    grayblocks
+EOF
+exit 0
+}
+
+# Launch the bar
+launch-bar () {
+    # Terminate already running bar instances
+    killall -q polybar
+
+    if [[ -f ~/.config/bspwm/bspwmrc ]]; then
+        sed -i -e "s/polybar.*/polybar\/launch\.sh $bar $style \&/g" ~/.config/bspwm/bspwmrc
+    fi
+
+    # Wait until the processes have been shut down
+    while pgrep -u $UID -x polybar >/dev/null; do sleep 1; done
+
+    if type "xrandr"; then
+        for m in $(xrandr --query | grep " connected" | cut -d" " -f1); do
+            POLYBAR_MONITOR=$m polybar --reload $bar -c "$DIR"/"$style"/config.ini &
+        done
+
+        else
+            polybar --reload $bar -c "$DIR"/"$style"/config.ini &
+    fi
+}
+
+if [[ "$1" = "bspwm" ]]; then
+    bar="bspwm"
+elif [[ "$1" = "awesomewm" ]]; then
+    bar="awesomewm"
+else
+    error
+fi
+
+
+if [[ "$2" = "rounded" ]]; then
+    style="rounded"
+    launch-bar
+elif [[ "$2" = "grayblocks" ]]; then
+    style="grayblocks"
+    launch-bar
+else
+    error
+fi

i3/.config/polybar/scripts/scroll_spotify_status.sh

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+#!/bin/bash
+
+# see man zscroll for documentation of the following parameters
+zscroll -l 30 \
+        --delay 0.1 \
+        --scroll-padding "  " \
+        --match-command "`dirname $0`/get_spotify_status.sh --status" \
+        --match-text "Playing" "--scroll 1" \
+        --match-text "Paused" "--scroll 0" \
+        --update-check true "`dirname $0`/get_spotify_status.sh" &
+
+wait
+