run

#!/bin/bash
# Starts a Neoclassical Habitat server and Habitat protocol bridge.

set -o pipefail

trap 'kill %1; kill %2' SIGINT

function retry() {
  local n=0
  local try=$1
  local cmd="${@: 2}"
  [[ $# -le 1 ]] && {
    echo "Usage $0 <retry_number> <command>";
  }

  until [[ $n -ge $try ]]
  do
    $cmd && break || {
      echo "Command Fail.."
      ((n++))
      echo "retry $n ::"
      sleep 1;
    }
  done
}

GIT_BASE_DIR=$(git rev-parse --show-toplevel)
VERSION=$(cat ${GIT_BASE_DIR}/target/classes/version.txt)

# Sets default config values if there are no environment-level overrides.
DEBUG_PORT="${NEOHABITAT_DEBUG_PORT-1985}"
MONGO_HOST="${NEOHABITAT_MONGO_HOST-127.0.0.1:27017}"
BRIDGE_HOST="${NEOHABITAT_BRIDGE_HOST-0.0.0.0}"
BRIDGE_PORT="${NEOHABITAT_BRIDGE_PORT-1337}"
DEFAULT_CONTEXT="${NEOHABITAT_DEFAULT_CONTEXT-context-Downtown_5f}"
SCHEMA_DIR="${NEOHABITAT_SCHEMA_DIR-db}"
SERVER_HOST="${NEOHABITAT_SERVER_HOST-0.0.0.0}"
SERVER_NAME="${NEOHABITAT_SERVER_NAME-neohabitat}"
SERVER_BIND="${NEOHABITAT_SERVER_PORT-0.0.0.0}"
DEBUGGER_PORT="${NEOHABITAT_DEBUGGER_PORT-1898}"
SHUTDOWN_PASSWORD="${NEOHABITAT_SHUTDOWN_PASSWORD-figleaf}"
SHOULD_BACKGROUND_BRIDGE="${NEOHABITAT_SHOULD_BACKGROUND_BRIDGE-true}"
SHOULD_ENABLE_DEBUGGER="${NEOHABITAT_SHOULD_ENABLE_DEBUGGER-false}"
SHOULD_RUN_BRIDGE="${NEOHABITAT_SHOULD_RUN_BRIDGE-true}"
SHOULD_RUN_NEOHABITAT="${NEOHABITAT_SHOULD_RUN_NEOHABITAT-true}"
SHOULD_UPDATE_SCHEMA="${NEOHABITAT_SHOULD_UPDATE_SCHEMA-true}"
PORT_RESV_TCP="${NEOHABITAT_PORT_RESV_TCP-9000}"

BASE_ARGS=(
  org.elkoserver.server.context.ContextServerBoot
  trace_cont=DEBUG
  trace_comm=EVENT
  # Forcibly logs to stdout to comply with 12 Factor App guidelines.
  tracelog_dir=/plz/log/to/stdout
  tracelog_tag=context
  conf.listen.host="${SERVER_HOST}:${PORT_RESV_TCP}"
  conf.listen.bind="${SERVER_BIND}:${PORT_RESV_TCP}"
  conf.listen.protocol=tcp
  conf.comm.jsonstrictness=true
  conf.context.entrytimeout=999999
  conf.context.odb=mongo
  conf.context.odb.mongo.hostport="${MONGO_HOST}"
  conf.context.objstore=org.elkoserver.objdb.store.mongostore.MongoObjectStore
  conf.context.name="${SERVER_NAME}"
  conf.context.shutdownpassword="${SHUTDOWN_PASSWORD}"
  conf.msgdiagnostics=true
)

JVM_ARGS=()

if [ "${SHOULD_ENABLE_DEBUGGER}" == true ]; then
  echo " - Enabling JMX debugging for Neohabitat..."
  JVM_ARGS+=("-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=${DEBUGGER_PORT}")
fi

if [ "${SHOULD_UPDATE_SCHEMA}" == true ]; then
  cd ${GIT_BASE_DIR}/${SCHEMA_DIR}
  retry 60 "make clean"
  cd ..
fi

# Starts the Habitat-to-Elko bridge process if requested.
if [ "${SHOULD_RUN_BRIDGE}" == true ]; then
  if [ "${SHOULD_BACKGROUND_BRIDGE}" == true ]; then
    supervisor -w bridge -- ${GIT_BASE_DIR}/bridge/Habitat2ElkoBridge.js -l "${BRIDGE_HOST}:${BRIDGE_PORT}" -m "${MONGO_HOST}/elko" -c "${DEFAULT_CONTEXT}" -t debug &
  else
    supervisor -w bridge -- ${GIT_BASE_DIR}/bridge/Habitat2ElkoBridge.js -l "${BRIDGE_HOST}:${BRIDGE_PORT}" -m "${MONGO_HOST}/elko" -c "${DEFAULT_CONTEXT}" -t debug
  fi
fi

# Starts the Habitat Elko server if requested.
if [ "${SHOULD_RUN_NEOHABITAT}" == true ]; then
  echo " - Running Neohabitat Elko server with args: ${BASE_ARGS[@]}"
  java "${JVM_ARGS[@]}" -jar ${GIT_BASE_DIR}/target/neohabitat-${VERSION}.jar "${BASE_ARGS[@]}" "${@}"
fi