Dockerfile

# Multi-stage Dockerfile for Boid Simulation
# Supports build, test, and headless experiment modes

FROM ubuntu:24.04 AS base

# Prevent interactive prompts during package installation
ENV DEBIAN_FRONTEND=noninteractive

# Install build dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    clang \
    libc++-dev \
    libc++abi-dev \
    libglew-dev \
    libglfw3-dev \
    libgtest-dev \
    libyaml-cpp-dev \
    libomp-dev \
    llvm \
    cmake \
    make \
    && rm -rf /var/lib/apt/lists/*

# Build and install Google Test (Ubuntu provides sources, not binaries)
RUN cd /usr/src/googletest && \
    cmake -DCMAKE_CXX_COMPILER=clang++ \
          -DCMAKE_INSTALL_PREFIX=/usr/local . && \
    make -j$(nproc) && \
    make install && \
    ldconfig

WORKDIR /app

# ============ Builder stage ============
FROM base AS builder

# Copy source files
COPY src/ src/
COPY tests/ tests/
COPY config/ config/
COPY makefile.docker makefile

# Build all targets
RUN make all && make test_runner && make experiment

# ============ Test stage ============
FROM builder AS test

# Run tests by default
CMD ["./test_runner"]

# ============ Coverage stage ============
FROM builder AS coverage

RUN make coverage
CMD ["cat", "build/coverage/html/index.html"]

# ============ Experiment stage ============
FROM builder AS experiment

# Copy output directory for results
VOLUME ["/app/output"]

ENTRYPOINT ["./experiment"]
CMD ["config/default.yaml", "output/results.csv"]