Discord Installer

update-discord

#!/bin/bash
shopt -s nullglob

pp (){
    if [ -x "$(command -v cowsay)" ]
    then
        cowsay "$1"
    else
        echo "=========="
        echo "$1"
        echo "=========="
    fi
}

# CHECK FOR ROOT
if [[ $(id -u) -ne 0 ]] ; then pp "Please run as root" ; exit 1 ; fi

tmpdir=$(mktemp -d)

pp "Downloading Discord"
wget --output-document="$tmpdir/discord.tar.gz" 'https://discord.com/api/download?platform=linux&format=tar.gz'
tar xf "$tmpdir/discord.tar.gz" --directory="$tmpdir"

pp "Installing to /opt/Discord"
mkdir -p /opt/Discord
rm -rf /opt/Discord/*
cp -r  $tmpdir/Discord /opt/

pp "Run postinstallation script"
sudo -u $(logname) sh -c "/opt/Discord/postinst.sh"

pp "Create desktop file"
# https://superuser.com/a/484280/1691435
desktopFile="/home/$(logname)/.local/share/applications/discord.desktop"
echo "Saving desktop entry to $desktopFile"
cat << EOF > $desktopFile
## AUTOGENERATED BY update-discord!
[Desktop Entry]
Name=Discord
StartupWMClass=discord
Comment=All-in-one voice and text chat for gamers that's free, secure, and works on both your desktop and phone.
GenericName=Internet Messenger
Path=/opt/Discord
Exec=/opt/Discord/Discord --no-sandbox
Icon=/opt/Discord/discord.png
Type=Application
Categories=Network;InstantMessaging;
EOF

chown $(logname):$(logname) "$desktopFile"
chmod 777 "$desktopFile"

pp "Refresh desktop applications"
sudo -u $(logname) sh -c "xdg-desktop-menu forceupdate"