rel/overlay/bin/remsh

#!/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.

COUCHDB_BIN_DIR=$(cd "${0%/*}" && pwd)
ERTS_BIN_DIR=$COUCHDB_BIN_DIR/../
ROOTDIR=${ERTS_BIN_DIR%/*}
START_ERL=$(cat "$ROOTDIR/releases/start_erl.data")
ERTS_VSN=${START_ERL% *}
APP_VSN=${START_ERL#* }
BINDIR=$ROOTDIR/erts-$ERTS_VSN/bin

PROGNAME=${0##*/}
VERBOSE=""
NODE="couchdb@127.0.0.1"
COOKIE=monster
LHOST=127.0.0.1

printHelpAndExit() {
  echo "Usage: ${PROGNAME} [OPTION]... [-- <additional Erlang cli options>]"
  echo "  -c cookie     specify shared Erlang cookie (default: monster)"
  echo "  -l HOST       specify remsh's host name (default: 127.0.0.1)"
  echo "  -m            use output of \`hostname -f\` as remsh's host name"
  echo "  -n NAME@HOST  specify couchdb's Erlang node name (-name in vm.args)"
  echo "  -v            verbose; print invocation line"
  echo "  -h            this help message"
  exit
}

while getopts ":hn:c:l:mv" optionName; do
  case "$optionName" in
    h)
      printHelpAndExit 0
      ;;
    n)
      NODE=$OPTARG
      ;;
    c)
      COOKIE=$OPTARG
      ;;
    l)
      LHOST=$OPTARG
      ;;
    m)
      LHOST=$(hostname -f)
      ;;
    v)
      VERBOSE=0
      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      printHelpAndExit 0
      ;;
  esac
done

shift $((OPTIND - 1))

if [ ! -z "$VERBOSE" ]; then
  # cheap but it works
  set -x
fi

exec "$BINDIR/erl" -boot "$ROOTDIR/releases/$APP_VSN/start_clean" \
    -name remsh$$@$LHOST -remsh $NODE -hidden -setcookie $COOKIE \
    "$@"