#!/bin/sh
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# This script provides an execution environment for mozconfig scripts.
# This script is not meant to be called by users. Instead, some
# higher-level driver invokes it and parses the machine-tailored output.

set -e

ac_add_options() {
  for _mozconfig_opt; do
    case "$_mozconfig_opt" in
    --target=*)
      echo "------BEGIN_MK_OPTION"
      echo $_mozconfig_opt | sed s/--target/CONFIG_GUESS/
      echo "------END_MK_OPTION"
      ;;
    esac
    echo "------BEGIN_AC_OPTION"
    echo $_mozconfig_opt
    echo "------END_AC_OPTION"
  done
}

ac_add_app_options() {
  _mozconfig_app=$1
  shift
  echo "------BEGIN_AC_APP_OPTION"
  echo $_mozconfig_app
  echo "$*"
  echo "------END_AC_APP_OPTION"
}

mk_add_options() {
  for _mozconfig_opt; do
    echo "------BEGIN_MK_OPTION"
    echo $_mozconfig_opt
    # Remove any leading "export"
    opt=${_mozconfig_opt#export}
    case "$_mozconfig_opt" in
    *\?=*) _mozconfig_op="?=" ;;
    *:=*) _mozconfig_op=":=" ;;
    *+=*) _mozconfig_op="+=" ;;
    *=*) _mozconfig_op="=" ;;
    esac
    # Remove the operator and the value that follows
    _mozconfig_name=${_mozconfig_opt%%${_mozconfig_op}*}
    # Note: $(echo ${_mozconfig_name}) strips the variable from any leading and trailing
    # whitespaces.
    eval "$(echo ${_mozconfig_name})_IS_SET=1"
    echo "------END_MK_OPTION"
  done
}

echo "------BEGIN_ENV_BEFORE_SOURCE"
$3 $4
echo "------END_ENV_BEFORE_SOURCE"

echo "------BEGIN_BEFORE_SOURCE"
set
echo "------END_BEFORE_SOURCE"

topsrcdir=$1

. $2

unset topsrcdir

echo "------BEGIN_AFTER_SOURCE"
set
echo "------END_AFTER_SOURCE"

echo "------BEGIN_ENV_AFTER_SOURCE"
$3 $4

echo "------END_ENV_AFTER_SOURCE"