do-unikraft-python3

#!/bin/bash

top=unikraft-python3
libs="$top"/libs
apps="$top"/libs
uk="$top"/unikraft
app="$top"/apps/app-python3

setup()
{
    mkdir -p "$top"
    mkdir -p "$libs"
    mkdir -p "$apps"

    git clone https://github.com/unikraft/unikraft "$uk"

    git clone https://github.com/unikraft/app-python3 "$app"
    git clone https://github.com/unikraft/lib-python3 "$libs"/python3
    git clone https://github.com/unikraft/lib-zlib "$libs"/zlib
    git clone https://github.com/unikraft/lib-libuuid "$libs"/libuuid
    git clone https://github.com/unikraft/lib-newlib "$libs"/newlib
    git clone https://github.com/unikraft/lib-pthread-embedded "$libs"/pthread-embedded
    git clone https://github.com/unikraft/lib-lwip "$libs"/lwip
}

build()
{
    pushd "$app" > /dev/null
    export UK_WORKDIR=$(pwd)/../../
    kraft configure -F -m x86_64 -p kvm
    kraft build -j $(nproc)
    popd > /dev/null
}

clean()
{
    pushd "$app" > /dev/null
    export UK_WORKDIR=$(pwd)/../../
    kraft clean -d
    popd > /dev/null
}

remove()
{
    rm -fr "$top"
}

run()
{
    pushd "$app" > /dev/null
    export UK_WORKDIR=$(pwd)/../../
    kraft run -M 1024 " -- helloworld.py"
    popd > /dev/null
}

run_qemu()
{
    pushd "$app" > /dev/null
    sudo qemu-system-x86_64 -fsdev local,id=myid,path=$(pwd)/fs0,security_model=none \
                            -device virtio-9p-pci,fsdev=myid,mount_tag=fs0,disable-modern=on,disable-legacy=off \
                            -kernel "build/python3_kvm-x86_64" \
                            -append "-- helloworld.py" \
                            -cpu host \
                            -enable-kvm \
                            -m 1G \
                            -nographic
    popd > /dev/null
}

if test $# -ne 1; then
    echo "Usage: $0 <command>" 1>&2
    echo "  command: setup build clean run run_qemu remove" 1>&2
    exit 1
fi

command="$1"

case "$command" in

    "setup")
        setup
        ;;

    "build")
        build
        ;;

    "clean")
        clean
        ;;

    "run")
        run
        ;;

    "run_qemu")
        run_qemu
        ;;

    "remove")
        remove
        ;;

    *)
        echo "Unknown command"
        exit 1
esac