#!/bin/bash

# Copyright (c) 2011 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.
#
# Simple wrapper script to build the chromeos-chrome package incrementally.

. /usr/lib/crosutils/common.sh || (echo "Unable to load common.sh")

get_default_board

DEFINE_string board "${DEFAULT_BOARD}" \
    "Board for which to build the package."
DEFINE_boolean reconf "${FLAGS_FALSE}" \
  "Re-run configure and prepare steps."

set -e
# Parse command line.
FLAGS "$@" || exit 1
eval set -- "${FLAGS_ARGV}"

if [ $# -ne 0 ]; then
  echo "Usage: ${0} [OPTIONS]"
  exit 1
fi

if [ -n "${FLAGS_board}" ]; then
  BOARD_DIR=/build/"${FLAGS_board}"
  EBUILDCMD=ebuild-"${FLAGS_board}"
  EMERGECMD=emerge-"${FLAGS_board}"
  EQUERYCMD=equery-"${FLAGS_board}"
  BOARD_STR="${FLAGS_board}"
  BOARD_KEYWORD="$(portageq-${FLAGS_board} envvar ARCH)"
fi

chrome="chromeos-chrome"
unstable_suffix="9999"
workon_name="${chrome}-${unstable_suffix}"
pkgfile=
workpath=

# Find the ebuild file.
if ! pkgfile=$(ACCEPT_KEYWORDS="~${BOARD_KEYWORD}" "${EQUERYCMD}" which \
   "${workon_name}" 2> /dev/null); then
  die "error looking up ${chrome}"
fi

# Find the portage work directory for this package.
workpath=$(\
    echo "${pkgfile}" | \
        awk -F '/' '{ print $(NF-2) "/" $(NF-1) }')-"${unstable_suffix}"
clean=
if [ "${FLAGS_reconf}" = "${FLAGS_TRUE}" ]; then
  clean="clean"
else
  rm -f "/build/${BOARD_STR}/tmp/portage/${workpath}/.compiled"
fi

CCACHE_SIZE=2G CHROME_ORIGIN=LOCAL_SOURCE FEATURES="ccache" \
  USE="-build_tests" "${EBUILDCMD}" "${pkgfile}" ${clean} compile