#!/bin/sh

# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

canonical_readlink ()
  {
  FILE=$(dirname "$1")/$(basename "$1");
  if [ -h "$FILE" ]; then
    cd $(dirname "$1")
    canonical_readlink $(readlink "$FILE");
  else
    cd "${1%/*}" && pwd -P;
  fi
}
COUCHDB_BIN_DIR=$(canonical_readlink "$0")
ERTS_BIN_DIR=$COUCHDB_BIN_DIR/../
cd "$COUCHDB_BIN_DIR/../"

export ROOTDIR=${ERTS_BIN_DIR%/*}

START_ERL=`cat "$ROOTDIR/releases/start_erl.data"`
ERTS_VSN=${START_ERL% *}

export BINDIR="$ROOTDIR/erts-$ERTS_VSN/bin"
export EMU=beam
export PROGNAME=`echo $0 | sed 's/.*\///'`

export COUCHDB_QUERY_SERVER_JAVASCRIPT="${COUCHDB_QUERY_SERVER_JAVASCRIPT:-{{prefix}}/bin/couchjs {{prefix}}/share/server/main.js}"
export COUCHDB_QUERY_SERVER_COFFEESCRIPT="${COUCHDB_QUERY_SERVER_COFFEESCRIPT:-{{prefix}}/bin/couchjs {{prefix}}/share/server/main-coffee.js}"
# Use a separate var to work around rebar's mustache template bug
DEFAULT_FAUXTON_ROOT={{fauxton_root}}
export COUCHDB_FAUXTON_DOCROOT="${COUCHDB_FAUXTON_DOCROOT:-${DEFAULT_FAUXTON_ROOT}}"

ARGS_FILE="${COUCHDB_ARGS_FILE:-$ROOTDIR/etc/vm.args}"
[ -n "${COUCHDB_INI_FILES:-}" ] && INI_ARGS="-couch_ini $COUCHDB_INI_FILES"
SYSCONFIG_FILE="${COUCHDB_SYSCONFIG_FILE:-$ROOTDIR/releases/sys.config}"

exec "$BINDIR/erlexec" -boot "$ROOTDIR/releases/couchdb" \
     -args_file "${ARGS_FILE}" \
     ${INI_ARGS:-} \
     -config "${SYSCONFIG_FILE}" "$@"
