Dockerfile.python312

# Dockerfile for testing with Python 3.12 (subinterpreter support)
# Supports ASAN builds when ASAN_BUILD=1
FROM erlang:27-slim

# Prevent tzdata from asking for input
ENV DEBIAN_FRONTEND=noninteractive

# Build arg for ASAN
ARG ASAN_BUILD=0

# Install build dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    cmake \
    git \
    curl \
    wget \
    libssl-dev \
    zlib1g-dev \
    libbz2-dev \
    libreadline-dev \
    libsqlite3-dev \
    libncurses5-dev \
    libncursesw5-dev \
    xz-utils \
    tk-dev \
    libffi-dev \
    liblzma-dev \
    clang \
    llvm \
    && rm -rf /var/lib/apt/lists/*

# Build Python 3.12 from source (with ASAN if requested)
ARG PYTHON_VERSION=3.12.8
RUN cd /tmp && \
    wget https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.xz && \
    tar xf Python-${PYTHON_VERSION}.tar.xz && \
    cd Python-${PYTHON_VERSION} && \
    if [ "$ASAN_BUILD" = "1" ]; then \
        CC=clang CXX=clang++ \
        CFLAGS="-fsanitize=address -fno-omit-frame-pointer -g" \
        LDFLAGS="-fsanitize=address" \
        ./configure --prefix=/usr/local \
            --with-pydebug \
            --with-address-sanitizer \
            --enable-shared \
            LDFLAGS="-Wl,-rpath,/usr/local/lib -fsanitize=address"; \
    else \
        ./configure --prefix=/usr/local \
            --enable-optimizations \
            --with-lto \
            --enable-shared \
            LDFLAGS="-Wl,-rpath,/usr/local/lib"; \
    fi && \
    make -j$(nproc) && \
    make install && \
    cd / && rm -rf /tmp/Python-*

# Verify Python installation
RUN python3 --version && \
    python3 -c "import sys; print('Python version:', sys.version)"

# Set environment for rebar3
ENV PYTHON_CONFIG=/usr/local/bin/python3-config
ENV LD_LIBRARY_PATH=/usr/local/lib:${LD_LIBRARY_PATH:-}

# Set ASAN options
ENV ASAN_OPTIONS=detect_leaks=0:abort_on_error=1:print_stats=1

# Create working directory
WORKDIR /app

# Copy source
COPY . /app

# Remove problematic plugin
RUN sed -i '/rebar3_ex_doc/d' rebar.config || true

# Persist ASAN_BUILD from build arg to env for runtime
ENV ASAN_BUILD=${ASAN_BUILD}

# Run tests - do_cmake.sh will use ASAN flags via ASAN_BUILD env var
CMD rm -rf _build && rebar3 ct --readable=compact