setup vcpkg in docker container

Dockerfile-vcpkg.txt

# +-----------------------------+
# | vcpkg                 ~225MB|
# +-----------------------------+

#
# replaced by devcontainer.feature: ghcr.io/msclock/features/vcpkg:1
#

# https://github.com/microsoft/vcpkg/blob/master/README.md#quick-start-unix

ENV VCPKG_ROOT=/usr/local/vcpkg
ENV PATH="${PATH}:${VCPKG_ROOT}"

ENV VCPKG_DOWNLOADS=/usr/local/vcpkg-downloads

ENV VCPKG_TRIPLET=x64-linux
ENV VCPKG_USE_SYSTEM_BINARIES=1

RUN mkdir -p $VCPKG_DOWNLOADS && mkdir -p $VCPKG_ROOT

# Clone Repo
RUN git clone --depth=1 \
        -c core.eol=lf \
        -c core.autocrlf=false \
        -c fsck.zeroPaddedFilemode=ignore \
        -c fetch.fsck.zeroPaddedFilemode=ignore \
        -c receive.fsck.zeroPaddedFilemode=ignore \
        https://github.com/microsoft/vcpkg.git $VCPKG_ROOT

# Run VCPKG installer
RUN $VCPKG_ROOT/bootstrap-vcpkg.sh -disableMetrics

# VCPKG install default packages globally
RUN $VCPKG_ROOT/vcpkg integrate install && \
    $VCPKG_ROOT/vcpkg install gtest catch2 spdlog fmt nlohmann-json && \
    rm -rf $VCPKG_ROOT/buildtrees $VCPKG_ROOT/downloads/*