docker-entrypoint.sh

#!/bin/bash
# Entrypoint script to build workspace if needed

set -e

cd /workspace

# Check if we need to rebuild (install doesn't exist, is empty, or has wrong paths)
NEED_REBUILD=false

if [ ! -d "install" ] || [ -z "$(ls -A install)" ]; then
    NEED_REBUILD=true
elif [ -f "install/setup.bash" ]; then
    # Check if setup.bash contains wrong paths (from host build or different ROS distro)
    if grep -q "/home/kunj13/slam_frontend_ws" install/setup.bash 2>/dev/null || \
       grep -q "/home/.*/slam_frontend_ws" install/setup.bash 2>/dev/null || \
       grep -q "/opt/ros/humble" install/setup.bash 2>/dev/null; then
        echo "Detected wrong paths in setup.bash (host paths or wrong ROS distro), rebuilding workspace..."
        NEED_REBUILD=true
    fi
fi

# Check if scripts directory exists in source but not in install
if [ -d "rwa2_starter/slam_frontend/scripts" ] && \
   [ ! -f "install/slam_frontend/share/slam_frontend/scripts/play_bag.py" ]; then
    echo "Detected new scripts directory, rebuilding workspace..."
    NEED_REBUILD=true
fi

if [ "$NEED_REBUILD" = true ]; then
    echo "Building workspace..."
    source /opt/ros/jazzy/setup.bash
    colcon build --symlink-install --cmake-args -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -G Ninja --event-handlers console_cohesion+
    echo "Workspace build complete!"
fi

# Source ROS and workspace
source /opt/ros/jazzy/setup.bash
if [ -f /workspace/install/setup.bash ]; then
    source /workspace/install/setup.bash
fi

# Execute command
exec "$@"