Add script to run Soong tests with go tools

#!/bin/bash -ex

: "${OUT_DIR:?Must set OUT_DIR}"

TOP=$(cd $(dirname $0)/../../..; pwd)

cd ${TOP}

UNAME="$(uname)"

case "$UNAME" in

Linux)

    OS='linux'

    ;;

Darwin)

    OS='darwin'

    ;;

*)

    exit 1

    ;;

esac

# Verify that go test and go build work on all the same projects that are parsed by

# build/soong/build_kzip.bash

declare -ar go_modules=(build/blueprint build/soong

      build/make/tools/canoninja build/make/tools/compliance build/make/tools/rbcrun)

export GOROOT=${TOP}/prebuilts/go/${OS}-x86

export GOENV=off

export GOPROXY=off

abs_out_dir=$(cd ${OUT_DIR}; pwd)

export GOPATH=${abs_out_dir}/gopath

export GOCACHE=${abs_out_dir}/gocache

export GOMODCACHE=${abs_out_dir}/gomodcache

export TMPDIR=${abs_out_dir}/gotemp

mkdir -p ${TMPDIR}

${GOROOT}/bin/go env

# androidmk_test.go gets confused if ANDROID_BUILD_TOP is set.

unset ANDROID_BUILD_TOP

network_jail=""

if [[ ${OS} = linux ]]; then

    # The go tools often try to fetch dependencies from the network,

    # wrap them in an nsjail to prevent network access.

    network_jail=${TOP}/prebuilts/build-tools/linux-x86/bin/nsjail

    # Quiet

    network_jail="${network_jail} -q"

    # No timeout

    network_jail="${network_jail} -t 0"

    # Set working directory

    network_jail="${network_jail} --cwd=\$PWD"

    # Pass environment variables through

    network_jail="${network_jail} -e"

    # Allow read-only access to everything

    network_jail="${network_jail} -R /"

    # Allow write access to the out directory

    network_jail="${network_jail} -B ${abs_out_dir}"

    # Allow write access to the /tmp directory

    network_jail="${network_jail} -B /tmp"

    # Set high values, as network_jail uses low defaults.

    network_jail="${network_jail} --rlimit_as soft"

    network_jail="${network_jail} --rlimit_core soft"

    network_jail="${network_jail} --rlimit_cpu soft"

    network_jail="${network_jail} --rlimit_fsize soft"

    network_jail="${network_jail} --rlimit_nofile soft"

fi

for dir in "${go_modules[@]}"; do

    (cd "$dir";

     eval ${network_jail} -- ${GOROOT}/bin/go build ./...

     eval ${network_jail} -- ${GOROOT}/bin/go test ./...

    )

done