[DO NOT MERGE] Add rbesetup.sh script to Q branch

source build/envsetup.sh

# This function prefixes the given command with appropriate variables needed

# for the build to be executed with RBE.

function use_rbe() {

  local RBE_LOG_DIR="/tmp"

  local RBE_BINARIES_DIR="prebuilts/remoteexecution-client/latest"

  local DOCKER_IMAGE="gcr.io/androidbuild-re-dockerimage/android-build-remoteexec-image@sha256:582efb38f0c229ea39952fff9e132ccbe183e14869b39888010dacf56b360d62"

  # Do not set an invocation-ID and let reproxy auto-generate one.

  USE_RBE="true" \

  FLAG_server_address="unix:///tmp/reproxy_$RANDOM.sock" \

  FLAG_exec_root="$(gettop)" \

  FLAG_platform="container-image=docker://${DOCKER_IMAGE}" \

  RBE_use_application_default_credentials="true" \

  RBE_log_dir="${RBE_LOG_DIR}" \

  RBE_reproxy_wait_seconds="20" \

  RBE_output_dir="${RBE_LOG_DIR}" \

  RBE_log_path="text://${RBE_LOG_DIR}/reproxy_log.txt" \

  RBE_CXX_EXEC_STRATEGY="remote_local_fallback" \

  RBE_cpp_dependency_scanner_plugin="${RBE_BINARIES_DIR}/dependency_scanner_go_plugin.so" \

  RBE_DIR=${RBE_BINARIES_DIR} \

  RBE_re_proxy="${RBE_BINARIES_DIR}/reproxy" \

  $@

}

# This function detects if the uploader is available and sets the path of it to

# ANDROID_ENABLE_METRICS_UPLOAD.

function _export_metrics_uploader() {

  local uploader_path="$(gettop)/vendor/google/misc/metrics_uploader_prebuilt/metrics_uploader.sh"

  if [ -x "${uploader_path}" ]; then

    export ANDROID_ENABLE_METRICS_UPLOAD="${uploader_path}"

  fi

}

# This function sets RBE specific environment variables needed for the build to

# executed by RBE. This file should be sourced once per checkout of Android code.

function _set_rbe_vars() {

  unset USE_GOMA

  export USE_RBE="true"

  export RBE_CXX_EXEC_STRATEGY="remote_local_fallback"

  export RBE_JAVAC=1

  export RBE_R8=1

  export RBE_D8=1

}

_export_metrics_uploader

_set_rbe_vars