Dockerfile.fromsource

# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

ARG BASE_IMAGE=gentoo/stage3:amd64-nomultilib-openrc
FROM ${BASE_IMAGE}

ARG compiler_kind=clang-p2996
ARG compiler_version=21.0.0.9999
RUN /bin/bash <<"EOF"
    set -eux
    echo 'BINPKG_FORMAT="gpkg"' >> /etc/portage/make.conf
    echo 'FEATURES="getbinpkg"' >> /etc/portage/make.conf
    for i in 1 2 3; do emerge --sync && break; sleep 60; done
    getuto
    emerge dev-vcs/git
    mkdir -p /etc/portage/repos.conf
    case $(uname -m) in
        x86_64)   GENTOO_ARCH=amd64; GCC_TRIPLET=x86_64-pc-linux-gnu ;;
        aarch64)  GENTOO_ARCH=arm64; GCC_TRIPLET=aarch64-unknown-linux-gnu ;;
        *)        echo "Unsupported arch: $(uname -m)"; exit 1 ;;
    esac

    if [[ ${compiler_kind} == clang-p2996 ]] ; then
      cat > /etc/portage/repos.conf/gentoo.conf <<"EOF2"
[gentoo]
location = /var/db/repos/gentoo
sync-type = git
sync-uri = https://github.com/bemanproject/container-infra-clang-p2996-gentoo.git
auto-sync = yes
sync-openpgp-key-refresh = no
EOF2
      rm -rf /var/db/repos/gentoo
      emerge --sync
    fi
    echo "ACCEPT_KEYWORDS=\"~${GENTOO_ARCH}\"" >> /etc/portage/make.conf
    echo "=dev-build/cmake-4.4.3" >> /etc/portage/package.unmask
    mkdir -p /etc/portage/package.accept_keywords
    echo "dev-util/gcovr **" >> /etc/portage/package.accept_keywords/gcovr
    emerge =dev-build/cmake-4.4.3
    emerge dev-build/ninja
    emerge dev-util/gcovr
    emerge app-misc/jq
    if [[ ${compiler_kind} == clang* ]] ; then
      if [[ ${compiler_version%%.*} == "22" ]] ; then
        cat >> /etc/portage/package.mask/llvm <<'EOF2'
>=llvm-core/clang-common-23
>=llvm-core/llvm-23
>=llvm-core/llvmgold-23
>=llvm-runtimes/openmp-23
>=llvm-runtimes/libcxx-23
>=llvm-runtimes/libcxxabi-23
>=llvm-runtimes/clang-runtime-23
>=llvm-runtimes/compiler-rt-23
>=llvm-runtimes/compiler-rt-sanitizers-23
EOF2
      fi
      export USE="libcxx"
      if ! emerge =llvm-core/clang-${compiler_version} --autounmask --autounmask-write ; then
        etc-update --automode -5
        emerge =llvm-core/clang-${compiler_version}
      fi
      ln -sv /usr/lib/llvm/${compiler_version%%.*}/bin/* /usr/local/bin/
    elif [[ ${compiler_kind} == gcc ]] ; then
      if ! emerge =sys-devel/gcc-${compiler_version} --autounmask --autounmask-write ; then
        etc-update --automode -5
        emerge =sys-devel/gcc-${compiler_version}
      fi
      eselect gcc set ${GCC_TRIPLET}-${compiler_version%%\.*}
    else
      exit 1
    fi

    emerge app-arch/zip app-arch/unzip net-misc/curl app-misc/ca-certificates
    update-ca-certificates
    git clone --depth 1 https://github.com/microsoft/vcpkg.git /opt/vcpkg
    /opt/vcpkg/bootstrap-vcpkg.sh -disableMetrics
    ln -sf /opt/vcpkg/vcpkg /usr/local/bin/vcpkg

    rm -rf /var/db/repos/gentoo /var/cache/*
EOF

ENV VCPKG_ROOT=/opt/vcpkg