cros_workon: collapse cros_workon_common.sh

lib/cros_workon_common.sh

-#!/bin/bash
-
-# Copyright (c) 2010 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.
-
-# Common library for functions used by workon tools.
-
-find_keyword_workon_ebuilds() {
-  keyword="${1}"
-
-  pushd "${BOARD_DIR}"/etc/ 1> /dev/null
-  source make.conf
-  popd 1> /dev/null
-  local CROS_OVERLAYS="${PORTDIR_OVERLAY}"
-
-  # NOTE: overlay may be a symlink, and we have to use ${overlay}/
-  for overlay in ${CROS_OVERLAYS}; do
-    # only look up ebuilds named 9999 to eliminate duplicates
-    find ${overlay}/ -name '*9999.ebuild' | \
-      xargs grep -l "inherit.*cros-workon" | \
-      xargs grep -l "KEYWORDS=.*${keyword}.*"
-  done
-}
-
-show_workon_ebuilds() {
-  keyword=$1
-
-  find_keyword_workon_ebuilds ${keyword} | \
-    sed -e 's/.*\/\([^/]*\)\/\([^/]*\)\/.*\.ebuild/\1\/\2/' | \
-       sort -u
-  # This changes the absolute path to ebuilds into category/package.
-}