# Copyright 2021 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Clean up rust packages which no longer have corresponding ebuilds
#
# This is achieved by:
# * Running `eclean` to remove binary packages without a corresponding ebuild
# * Running `equery l -b` to find ebuilds with no binary package
# * Running `emerge -C` to remove those revisions.

export CLEAN_DELAY=0

do_clean() {
  local suffix="$1"
  local emerge_cmd=()
  local args

  if [[ -z "${suffix}" ]]; then
    emerge_cmd+=( sudo )

    qlist -IC ^cross- | sudo eclean -e /dev/stdin packages
  else
    "eclean${suffix}" packages
  fi
  emerge_cmd+=( "emerge${suffix}" )

  args=( $("equery${suffix}" l -b --format='=$cpv' 'dev-rust/*' ) )
  if [[ ${#args[@]} -eq 0 ]]; then
    return
  fi

  "${emerge_cmd[@]}" -C "${args[@]}"
}

do_clean
for board_root in /build/*; do
  board_name=${board_root##*/}
  if [[ -d "${board_root}/var/db/pkg/dev-rust" ]]; then
    do_clean "-${board_name}"
  fi
done