first_run setup script for Linux Mint my way

#!/bin/bash
# Do boring setup stuff. Will need to type the password for your SSH key home and
# your password for sudo the first time, but apart from that it's automated

SSH_KEY_HOME="[email protected]:/home/user/.ssh"

mkdir -p ~/.ssh
chmod 700 ~/.ssh
echo "# Copying ssh keys "
if ! ls ~/.ssh/id_* &> /dev/null; then
    scp ${SSH_KEY_HOME}/id* ~/.ssh
    echo "... done"
else
    echo "... already got keys"
fi

echo "# Setup better hotkey bindings ..."
gsettings set org.cinnamon.desktop.keybindings.media-keys terminal "['<Super>t']"
gsettings set org.cinnamon.desktop.keybindings looking-glass-keybinding "[]"
gsettings set org.cinnamon.desktop.keybindings.media-keys screensaver "['<Super>l', 'XF86ScreenSaver']"
gsettings set org.cinnamon.desktop.keybindings.wm panel-run-dialog "['<Super>r']"
gsettings set org.gnome.desktop.input-sources xkb-options "['compose:ralt']"
gsettings set org.cinnamon.desktop.input-sources xkb-options "['compose:ralt']"
gsettings set org.cinnamon.sounds tile-enabled false

echo "# Install NodeJS v22 ..."
curl -fsSL https://deb.nodesource.com/setup_22.x -o /tmp/nodesource_setup.sh
sudo -E bash /tmp/nodesource_setup.sh

echo "# Setup Jetbrains PPA ..."
if [ ! -f /usr/share/keyrings/jetbrains-ppa-archive-keyring.gpg ]; then
    curl -s https://s3.eu-central-1.amazonaws.com/jetbrains-ppa/0xA6E8698A.pub.asc | gpg --dearmor | sudo tee /usr/share/keyrings/jetbrains-ppa-archive-keyring.gpg > /dev/null
    echo "deb [signed-by=/usr/share/keyrings/jetbrains-ppa-archive-keyring.gpg] http://jetbrains-ppa.s3-website.eu-central-1.amazonaws.com any main" | sudo tee /etc/apt/sources.list.d/jetbrains-ppa.list > /dev/null
else
    echo "... already setup"
fi

echo "# Setup Signal PPA ..."
wget -O- https://updates.signal.org/desktop/apt/keys.asc | gpg --dearmor > signal-desktop-keyring.gpg
cat signal-desktop-keyring.gpg | sudo tee /usr/share/keyrings/signal-desktop-keyring.gpg > /dev/null
echo 'deb [arch=amd64 signed-by=/usr/share/keyrings/signal-desktop-keyring.gpg] https://updates.signal.org/desktop/apt xenial main' | sudo tee /etc/apt/sources.list.d/signal-xenial.list

if [ ! -f /etc/server_colour ]; then
    # Pick a randomish colour based on hostname
    COLOUR=$(( (0x$(hostname | md5sum | awk '{print substr($1,1,2)}') % 7) + (30 + (0x$(hostname | md5sum | awk '{print substr($1,1,2)}') % 7 >= 2)) ))
    sudo bash -c 'cat > /etc/server_colour' <<EOF
#!/bin/sh
#
# /etc/server_colour
# Set the colour for this server so that you don't forget what machine you're on
#
# Format: style;colour
# eg: "1;36"
#
# Styles:
# 0 - Normal Text
# 1 - Bold
# 4 - Underlined
# 7 - Reversed
#
# Colours:
# 30 - Black
# 31 - Red
# 32 - Green
# 33 - Yellow
# 34 - Blue
# 35 - Purple
# 36 - Cyan
# 37 - White

server_colour="1;$COLOUR"
EOF
fi

echo "# Updating .bashrc for colours"
if ! grep -q "server_colour" ~/.bashrc; then
    echo "... updating bashrc"
    cp ~/.bashrc ~/.bashrc.bak
    sed -i '/\033/c\
    [ -f /etc/server_colour ] && source /etc/server_colour || server_colour = "1;37"\
    PS1="${debian_chroot:+($debian_chroot)}\\[\\033[01;32m\\]\\u\\[\\033[${server_colour}m\\]@\\h\\[\\033[00m\\]:\\[\\033[01;34m\\]\\w\\[\\033[00m\\]\\$ "' ~/.bashrc
else
    echo "... looks updated, skipping"
fi

sudo apt update
sudo apt upgrade -y
sudo apt install -y nala
sudo nala install -y rustrover pycharm-professional webstorm vim curl build-essential gcc make python3-venv signal-desktop

echo "# Get and install discord ..."
wget "https://discord.com/api/download?platform=linux&format=deb" -O /tmp/discord.deb && sudo dpkg -i /tmp/discord.deb

echo "Installing Rust ..."
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y

echo "Fixing directories ..."

cd ~
for dir in Desktop Documents Downloads Music Pictures Videos Templates Public; do
    if [ -d "$dir" ]; then
        echo " - Fixing '$dir' ..."
        mv "$dir" "$(echo "$dir" | tr '[:upper:]' '[:lower:]')"
    fi
done

echo " - Updating ~/.config/user-dirs.dirs"
sed -i 's|\(XDG_\w*_DIR=\)\"\$HOME/\(.*\)\"|\1"\$HOME/\L\2"|' ~/.config/user-dirs.dirs
xdg-user-dirs-update

echo " - Updating nemo shortcuts (will restart nemo)"
sed -i "s/.*/\L&/" ~/.config/gtk-3.0/bookmarks
nemo --quit && nemo & disown -a

echo " DONE! (and a reboot wouldn't hurt)"