Manjaro Development Setup Script

manjaro_dev_setup.sh

#!/bin/zsh

# Setup development environment on a clean Manjaro Linux install
# Usage: sudo ./manjaro_dev_setup.sh

# Exit on error
set -e

# Check if running as root
if [ "$EUID" -ne 0 ]; then 
    echo "❌ Please run as root (use sudo)"
    exit 1
fi

echo "🚀 Starting Manjaro development environment setup..."

# Configure parallel downloads
echo "⚙️ Configuring parallel downloads..."
# More targeted approach to set ParallelDownloads
if grep -q "^ParallelDownloads" /etc/pacman.conf; then
  # If exists uncommented, replace it
  sed -i 's/^ParallelDownloads.*/ParallelDownloads = 11/' /etc/pacman.conf
elif grep -q "^#ParallelDownloads" /etc/pacman.conf; then
  # If exists commented, uncomment and set value
  sed -i 's/^#ParallelDownloads.*/ParallelDownloads = 11/' /etc/pacman.conf
else
  # If not found, add after the [options] section
  sed -i '/^\[options\]/a ParallelDownloads = 11' /etc/pacman.conf
fi

# Update system
echo "📦 Updating system packages..."
pacman -Syu --noconfirm

# Install essential development tools
echo "🛠️ Installing essential development tools..."
pacman -S --noconfirm \
    base-devel \
    neovim \
    chromium \
    code \
    docker \
    python-pip \
    nodejs \
    github-cli \
    glab \
    yay \
    timeshift-autosnap-manjaro

# Enable Docker service (will start after reboot)
echo "🐳 Setting up Docker..."
systemctl enable docker
echo "⚠️ Docker service enabled but requires a reboot to start properly"

# Get the original user who ran sudo
REAL_USER=$(logname || echo $SUDO_USER)
REAL_HOME=$(getent passwd "$REAL_USER" | cut -d: -f6)

# Add user to docker group so they can run docker without sudo
echo "👤 Adding user to docker group..."
usermod -aG docker "$REAL_USER"

# Set Neovim as default editor in user's shell profile
echo "⚙️ Configuring shell environment..."
if [ -f "$REAL_HOME/.zshrc" ]; then
  # Add to zshrc if not already present
  if ! grep -q "export EDITOR=nvim" "$REAL_HOME/.zshrc"; then
    echo 'export EDITOR=nvim' >> "$REAL_HOME/.zshrc"
    echo 'export VISUAL=nvim' >> "$REAL_HOME/.zshrc"
  fi
fi

# Configure global Git user settings
echo "🔧 Configuring Git global settings..."
su - "$REAL_USER" -c "git config --global user.name \"Bradley Pizzimenti\""
su - "$REAL_USER" -c "git config --global user.email \"[email protected]\""

# Install uBlock Origin for Firefox and Chromium
echo "🛡️ Installing uBlock Origin extension..."
# Firefox extension directory
FIREFOX_EXTENSIONS_DIR="/usr/lib/firefox/browser/extensions"
# Chromium extension directory
CHROMIUM_EXTENSIONS_DIR="/usr/share/chromium/extensions"

# Create extension directories if they don't exist
mkdir -p "$FIREFOX_EXTENSIONS_DIR"
mkdir -p "$CHROMIUM_EXTENSIONS_DIR"

# uBlock Origin extension IDs
UBLOCK_FIREFOX_ID="[email protected]"
UBLOCK_CHROMIUM_ID="cjpalhdlnbpafiamejdnhcphjbkeiagm"

# Firefox - Download and install uBlock Origin
wget -q "https://addons.mozilla.org/firefox/downloads/file/4003969/ublock_origin-latest.xpi" -O "$FIREFOX_EXTENSIONS_DIR/$UBLOCK_FIREFOX_ID.xpi"
chmod 644 "$FIREFOX_EXTENSIONS_DIR/$UBLOCK_FIREFOX_ID.xpi"

# Chromium - Create extension manifest
cat > "$CHROMIUM_EXTENSIONS_DIR/$UBLOCK_CHROMIUM_ID.json" << EOF
{
  "external_update_url": "https://clients2.google.com/service/update2/crx"
}
EOF
chmod 644 "$CHROMIUM_EXTENSIONS_DIR/$UBLOCK_CHROMIUM_ID.json"

# Install AUR applications (as the regular user, not root)
echo "💻 Installing AUR applications..."

# Temporarily allow the user to use sudo without a password
echo "$REAL_USER ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/99-temp-privileges
chmod 440 /etc/sudoers.d/99-temp-privileges

# Install AUR packages as the user
su - "$REAL_USER" -c "yay -S --noconfirm cursor-bin 1password claude-code || echo '⚠️ AUR installation failed - install manually after reboot'"

# Remove the temporary sudo privileges
rm -f /etc/sudoers.d/99-temp-privileges

# Cleanup
echo "🧹 Cleaning up..."
pacman -Sc --noconfirm

# Configure GRUB for maximum verbosity and snapshot menu
echo "⚙️ Configuring boot options..."

# Remove "quiet" if present
sed -i 's/quiet //g' /etc/default/grub

# Set loglevel to 9 (maximum)
if grep -q "loglevel=" /etc/default/grub; then
  # If loglevel exists, update it to 9
  sed -i 's/loglevel=[0-9]/loglevel=9/g' /etc/default/grub
  sed -i 's/loglevel=debug/loglevel=9/g' /etc/default/grub
else
  # If loglevel doesn't exist, add it to GRUB_CMDLINE_LINUX_DEFAULT
  sed -i 's/GRUB_CMDLINE_LINUX_DEFAULT="/GRUB_CMDLINE_LINUX_DEFAULT="loglevel=9 /g' /etc/default/grub
fi

# Ensure menu is displayed for snapshots
sed -i 's/GRUB_TIMEOUT_STYLE=.*/GRUB_TIMEOUT_STYLE=menu/g' /etc/default/grub

# Configure snapshot submenu for GRUB
if ! grep -q "^GRUB_BTRFS_SUBMENUNAME" /etc/default/grub; then
  echo 'GRUB_BTRFS_SUBMENUNAME="System Snapshots"' >> /etc/default/grub
  echo 'GRUB_BTRFS_DISPLAY_PATH_SNAPSHOT="true"' >> /etc/default/grub
fi

# Update GRUB configuration
update-grub

# Create an initial snapshot if timeshift is installed
if command -v timeshift >/dev/null; then
  echo "📸 Creating initial system snapshot..."
  timeshift --create --comments "Fresh Manjaro development setup" --yes
fi

echo "✨ Manjaro development environment setup complete!"
echo ""
echo "⚠️ Please reboot your system for all changes to take effect."