# Coverage-enabled GNU Radio runtime container
# Extends gnuradio-runtime with Python code coverage instrumentation
#
# Build:
#   docker build -f docker/Dockerfile.gnuradio-coverage -t gnuradio-coverage:latest docker/
#
# Usage:
#   docker run --rm -v $(pwd)/coverage:/coverage \
#     -e ENABLE_COVERAGE=1 \
#     gnuradio-coverage:latest python3 /flowgraphs/my_flowgraph.py
#
# The coverage data is written to /coverage/.coverage on container exit.
# Mount this volume to persist coverage data between runs.

FROM gnuradio-runtime:latest

LABEL org.opencontainers.image.title="GNU Radio Coverage Runtime"
LABEL org.opencontainers.image.description="GNU Radio runtime with Python code coverage support"

# Install Python coverage.py via apt (pip3 not available in base image)
RUN apt-get update && apt-get install -y --no-install-recommends \
    python3-coverage \
    && rm -rf /var/lib/apt/lists/*

# Copy coverage configuration
COPY .coveragerc /etc/coveragerc

# Copy coverage-aware entrypoint
COPY entrypoint-coverage.sh /entrypoint-coverage.sh
RUN chmod +x /entrypoint-coverage.sh

# Coverage data directory - mount a volume here to persist
VOLUME /coverage

# Environment variables for coverage
ENV COVERAGE_FILE=/coverage/.coverage
ENV COVERAGE_RCFILE=/etc/coveragerc

ENTRYPOINT ["/entrypoint-coverage.sh"]