FROM alpine:3.20 AS rust-builder

RUN apk add wget
ARG TARGETPLATFORM

ENV RUST_VERSION=1.82
RUN case "${TARGETPLATFORM}" in                       \
    "linux/amd64")                                    \
        echo 'export RUST_TARGET="x86_64-unknown-linux-musl"' > ./.env ;;    \
    "linux/arm64")                                    \
        echo 'export RUST_TARGET="aarch64-unknown-linux-musl"' > ./.env ;;                          \
    *)                                                \
        exit 239 ;;                                   \
    esac

RUN source ./.env  && \
    wget https://static.rust-lang.org/rustup/dist/${RUST_TARGET}/rustup-init && \
    chmod +x rustup-init && \
    ./rustup-init -y --default-toolchain=${RUST_VERSION} --default-host=${RUST_TARGET}
ENV PATH=/root/.cargo/bin:$PATH


ENV LIBUNWIND_VERSION=1.8.1
RUN apk add make gcc musl-dev
RUN source ./.env && \
    wget https://github.com/libunwind/libunwind/releases/download/v${LIBUNWIND_VERSION}/libunwind-${LIBUNWIND_VERSION}.tar.gz && \
    tar -zxvf libunwind-${LIBUNWIND_VERSION}.tar.gz && \
    cd libunwind-${LIBUNWIND_VERSION} && \
    ./configure --disable-minidebuginfo --enable-ptrace --disable-tests --disable-documentation --prefix=/usr/local/musl/${RUST_TARGET} && \
    make -j16 && \
    make install

RUN source ./.env && \
    wget https://zlib.net/zlib-1.3.1.tar.gz && \
    tar -zxvf zlib-1.3.1.tar.gz && \
    cd zlib-1.3.1 && \
    ./configure --prefix=/usr/local/musl/${RUST_TARGET} && \
    make -j16 && \
    make install