Dockerfile.linux-build

# Dockerfile for cross-compiling canined for Linux with CGO/ledger support
# Runs natively on ARM Mac, cross-compiles to x86_64
FROM golang:1.23.1-bookworm

# Build arguments
ARG GOARCH=amd64
ARG GOOS=linux
ARG LEDGER_ENABLED=true

# Install native and cross-compilation build dependencies
RUN dpkg --add-architecture amd64 && \
    apt-get update && \
    apt-get install -y \
    gcc \
    g++ \
    make \
    git \
    ca-certificates \
    && if [ "$GOARCH" = "amd64" ]; then \
        # Install x86_64 cross-compiler and libraries
        apt-get install -y \
            gcc-x86-64-linux-gnu \
            g++-x86-64-linux-gnu \
            libusb-1.0-0-dev:amd64; \
    else \
        apt-get install -y libusb-1.0-0-dev; \
    fi && \
    rm -rf /var/lib/apt/lists/*

# Set working directory
WORKDIR /workspace

# Copy both repositories (canine-chain and cometbft dependency)
COPY canine-chain /workspace/canine-chain
COPY cometbft-sec-tachyon /workspace/cometbft-sec-tachyon

# Set working directory to canine-chain
WORKDIR /workspace/canine-chain

# Download dependencies first to locate libwasmvm.so
RUN go mod download

# Find and copy libwasmvm.so to a standard location
# Select the correct architecture based on GOARCH
RUN if [ "$GOARCH" = "amd64" ]; then \
        WASMVM_ARCH="x86_64"; \
    elif [ "$GOARCH" = "arm64" ]; then \
        WASMVM_ARCH="aarch64"; \
    else \
        WASMVM_ARCH="x86_64"; \
    fi && \
    WASMVM_SO=$(find /go/pkg/mod/github.com/'!cosm!wasm'/wasmvm* -name "libwasmvm.$WASMVM_ARCH.so" 2>/dev/null | head -n1) && \
    if [ -n "$WASMVM_SO" ]; then \
        cp "$WASMVM_SO" /usr/lib/libwasmvm.so && \
        echo "Found and installed libwasmvm.so from: $WASMVM_SO (arch: $WASMVM_ARCH)"; \
    else \
        echo "Warning: libwasmvm.$WASMVM_ARCH.so not found in module cache"; \
    fi

# Set up environment for cross-compilation
ENV CGO_ENABLED=1
ENV GOOS=linux

# Set CC based on target architecture
RUN if [ "$GOARCH" = "amd64" ]; then \
        echo "export CC=x86_64-linux-gnu-gcc" >> /etc/environment; \
        echo "export CXX=x86_64-linux-gnu-g++" >> /etc/environment; \
    fi

# Build the binary with CGO enabled
RUN if [ "$GOARCH" = "amd64" ]; then \
        CC=x86_64-linux-gnu-gcc CXX=x86_64-linux-gnu-g++ GOARCH=amd64 make build; \
    else \
        GOARCH="$GOARCH" make build; \
    fi

# Copy libwasmvm.so to build directory for easy extraction
RUN if [ -f /usr/lib/libwasmvm.so ]; then \
        cp /usr/lib/libwasmvm.so /workspace/canine-chain/build/; \
    fi

# The binary will be at /workspace/canine-chain/build/canined
# The shared library will be at /workspace/canine-chain/build/libwasmvm.so