Files
brother-ql-bridge/scripts/deploy.sh
timmyhadwen 4010ffc01b Initial commit: Brother QL USB-to-Network Bridge
- TCP server exposing USB Brother QL printers on port 9100
- Supports all Brother QL series label printers
- Async architecture for handling concurrent print jobs
- Raspberry Pi deployment script and systemd service
- Documentation for setup and InvenTree integration
2025-12-21 16:46:14 +10:00

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#!/bin/bash
# Brother QL Bridge - Raspberry Pi Deployment Script
set -e
INSTALL_DIR="${INSTALL_DIR:-$HOME/brother-ql-bridge}"
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
echo "=== Brother QL Bridge Deployment ==="
echo "Install directory: $INSTALL_DIR"
echo ""
# Check if running on Raspberry Pi
if [[ ! -f /proc/device-tree/model ]] || ! grep -q "Raspberry Pi" /proc/device-tree/model 2>/dev/null; then
echo "Warning: This doesn't appear to be a Raspberry Pi"
read -p "Continue anyway? [y/N] " -n 1 -r
echo
[[ $REPLY =~ ^[Yy]$ ]] || exit 1
fi
# Step 1: Install system dependencies
echo "[1/5] Installing system dependencies..."
sudo apt update
sudo apt install -y python3 python3-pip python3-venv libusb-1.0-0-dev
# Step 2: Install uv if not present
echo "[2/5] Setting up Python package manager..."
if ! command -v uv &> /dev/null; then
echo "Installing uv..."
curl -LsSf https://astral.sh/uv/install.sh | sh
export PATH="$HOME/.local/bin:$PATH"
fi
# Step 3: Setup project
echo "[3/5] Setting up project..."
mkdir -p "$INSTALL_DIR"
cp "$PROJECT_DIR/bridge.py" "$INSTALL_DIR/"
cp "$PROJECT_DIR/config.py" "$INSTALL_DIR/"
cp "$PROJECT_DIR/requirements.txt" "$INSTALL_DIR/"
cp "$PROJECT_DIR/pyproject.toml" "$INSTALL_DIR/"
cd "$INSTALL_DIR"
uv venv
uv pip install -r requirements.txt
# Step 4: Setup udev rules
echo "[4/5] Configuring USB permissions..."
if [[ ! -f /etc/udev/rules.d/99-brother-ql.rules ]]; then
sudo tee /etc/udev/rules.d/99-brother-ql.rules > /dev/null << 'EOF'
# Brother QL label printers
SUBSYSTEM=="usb", ATTR{idVendor}=="04f9", MODE="0666"
EOF
sudo udevadm control --reload-rules
sudo udevadm trigger
echo "USB permissions configured. You may need to unplug and replug the printer."
else
echo "USB permissions already configured."
fi
# Step 5: Install systemd service
echo "[5/5] Installing systemd service..."
sudo tee /etc/systemd/system/brother-ql-bridge.service > /dev/null << EOF
[Unit]
Description=Brother QL USB-to-Network Bridge
After=network.target
[Service]
Type=simple
User=$USER
WorkingDirectory=$INSTALL_DIR
ExecStart=$INSTALL_DIR/.venv/bin/python bridge.py
Restart=always
RestartSec=10
[Install]
WantedBy=multi-user.target
EOF
sudo systemctl daemon-reload
sudo systemctl enable brother-ql-bridge
echo ""
echo "=== Deployment Complete ==="
echo ""
echo "To start the service:"
echo " sudo systemctl start brother-ql-bridge"
echo ""
echo "To check status:"
echo " sudo systemctl status brother-ql-bridge"
echo ""
echo "To view logs:"
echo " sudo journalctl -u brother-ql-bridge -f"
echo ""
echo "To test manually:"
echo " cd $INSTALL_DIR && source .venv/bin/activate && python bridge.py -v"