Dockerfile.test

# =============================================================================
# Dockerfile.test -- Multi-stage build for running the full pg-migration-lint
# test suite, including Liquibase bridge JAR support and golden file tests.
#
# Stage 1: Build the Liquibase bridge fat JAR (Maven + JDK 21), generate
#           golden files, and run Java tests.
# Stage 2: Build and test the Rust project with the JAR available, including
#           feature-gated bridge integration tests.
#
# Usage:
#   docker build -f Dockerfile.test -t pg-migration-lint-test .
#   docker run --rm pg-migration-lint-test
#
# To generate/update golden files and snapshots:
#   make bridge-generate
#
# To verify all tests pass:
#   make bridge-verify
# =============================================================================

# ---------------------------------------------------------------------------
# Stage 1: Build the Liquibase bridge JAR and run Java tests
# ---------------------------------------------------------------------------
FROM maven:3.9-eclipse-temurin-21 AS bridge-build

WORKDIR /build/bridge

# Copy POM first for dependency caching
COPY bridge/pom.xml .
RUN mvn dependency:go-offline -q

# Copy Java sources and build the shaded (fat) JAR — skip tests for now
# because the full-changelog golden file hasn't been generated yet.
COPY bridge/src/ src/
RUN mvn package -q -DskipTests

# Verify the JAR was produced
RUN test -f target/liquibase-bridge-1.0.0.jar

# Copy test fixtures so the bridge can process the full changelog
COPY tests/fixtures/ /build/tests/fixtures/

# Generate the full-changelog golden file from the bridge JAR output.
# This is used by both Java golden file tests and as a reference artifact.
RUN java -jar target/liquibase-bridge-1.0.0.jar \
    --changelog /build/tests/fixtures/repos/liquibase-xml/changelog/master.xml \
    > src/test/resources/fixtures/full-changelog.expected.json

# Now run Java tests — the golden file test can validate against the
# generated file.
RUN mvn test

# ---------------------------------------------------------------------------
# Stage 2: Rust build, test, and lint (including bridge integration tests)
# ---------------------------------------------------------------------------
FROM rust:1.93-bookworm AS rust-test

# Install system dependencies required by pg_query crate (bindgen needs
# libclang) and general Rust build tooling.
RUN rustup component add clippy && \
    apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libclang-dev \
    clang \
    pkg-config \
    libssl-dev \
    wget \
    # JRE needed at test time so the bridge loader can shell out to `java`
    default-jre-headless \
    && rm -rf /var/lib/apt/lists/*

# Install Liquibase CLI (pinned version) for update-sql E2E tests
ARG LIQUIBASE_VERSION=5.0.1
RUN wget -q -O /tmp/liquibase.tar.gz \
    "https://github.com/liquibase/liquibase/releases/download/v${LIQUIBASE_VERSION}/liquibase-${LIQUIBASE_VERSION}.tar.gz" && \
    mkdir -p /opt/liquibase && \
    tar -xzf /tmp/liquibase.tar.gz -C /opt/liquibase && \
    ln -s /opt/liquibase/liquibase /usr/local/bin/liquibase && \
    rm /tmp/liquibase.tar.gz

WORKDIR /app

# -- Layer 1: Cache Rust dependencies --
# Copy only the manifests and create a dummy lib/main so cargo can fetch deps.
COPY Cargo.toml Cargo.lock ./

# Create minimal stub sources so `cargo fetch` resolves all dependencies.
# These will be overwritten in the next COPY, but the dependency layer is cached.
RUN mkdir -p src && \
    echo 'pub fn _stub() {}' > src/lib.rs && \
    echo 'fn main() {}' > src/main.rs && \
    cargo fetch

# -- Layer 2: Copy the bridge JAR and golden file --
COPY --from=bridge-build /build/bridge/target/liquibase-bridge-1.0.0.jar bridge/target/liquibase-bridge-1.0.0.jar
COPY --from=bridge-build /build/bridge/src/test/resources/fixtures/full-changelog.expected.json bridge/src/test/resources/fixtures/full-changelog.expected.json

# -- Layer 3: Copy the full Rust project source --
COPY src/ src/
COPY tests/ tests/

# -- Layer 4: Build (compile check) including bridge-tests feature --
RUN cargo build --tests --features bridge-tests 2>&1

# -- Layer 5: Run all tests and clippy --
# Snapshots are already committed in the repo and copied via COPY tests/ above,
# so we run in verify mode (no INSTA_UPDATE).
ENV PG_LINT_LIQUIBASE_PATH=/usr/local/bin/liquibase
CMD ["sh", "-c", "cargo test --features bridge-tests && cargo clippy -- -D warnings"]