update-discord-tray

#!/usr/bin/env bash

# A script to update Discord's tray icon using the Papirus icon theme.
# Copyright (C) 2018 Julien Machiels
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

declare -a arr=("tray"
                "tray-connected"
                "tray-deafened"
                "tray-muted"
                "tray-speaking"
                "tray-unread"
                )

distribution=$(grep "^NAME=" /etc/os-release |cut -d "=" -f 2 | sed -e 's/^"//' -e 's/"$//')

echo "Extracting core.asar..."
    # Potentially this could support multiple distributions at some point.
    if [ "$distribution" == "Fedora" ]; then
        cd /usr/lib64/discord/resources/bootstrap/
    else
        echo "Distribution not currently supported."
        exit 1
    
    unzip -j discord_desktop_core.zip core.asar -d /tmp/

    asar e /tmp/core.asar /tmp/core
fi

# Process the icons
for icon in "${arr[@]}"
do
    # This location is for Fedora
    echo "Creating $icon..."
    rsvg-convert -w 22 -h 22 -f png -a /usr/share/icons/Papirus/22x22/panel/discord-$icon.svg > /tmp/core/app/images/systemtray/linux/$icon.png
done

echo "Repacking core.asar..."
asar p /tmp/core /tmp/core.asar

echo "Updating discord_desktop_core.zip..."
sudo zip -jur discord_desktop_core.zip /tmp/core.asar

echo "Cleaning up..."
rm -rf /tmp/core.asar
rm -rfd /tmp/core/