#!/usr/bin/env bash

# Configuration files

#

# /etc/default/jetty

#   If it exists, this is read at the start of script. It may perform any

#   sequence of shell commands, like setting relevant environment variables.

#

# /etc/jetty.conf

#   If found, and no configurations were given on the command line,

#   the file will be used as this script's configuration.

#   Each line in the file may contain:

#     - A comment denoted by the pound (#) sign as first non-blank character.

#     - The path to a regular file, which will be passed to jetty as a

#       config.xml file.

#     - The path to a directory. Each *.xml file in the directory will be

#       passed to jetty as a config.xml file.

#     - All other lines will be passed, as-is to the start.jar

#

#   The files will be checked for existence before being passed to jetty.

#

# Configuration variables

#

# JAVA

#   Command to invoke Java. If not set, java (from the PATH) will be used.

#

# JAVA_OPTIONS

#   Extra options to pass to the JVM

#

# JETTY_HOME

#   Where Jetty is installed. If not set, the script will try go

#   guess it by first looking at the invocation path for the script,

#   and then by looking in standard locations as $HOME/opt/jetty

#   and /opt/jetty. The java system property "jetty.home" will be

#   set to this value for use by configure.xml files, f.e.:

#

#    <Arg><Property name="jetty.home" default="."/>/webapps/jetty.war</Arg>

#

# JETTY_BASE

#   Where your Jetty base directory is.  If not set, the value from

#   $JETTY_HOME will be used.

#

# JETTY_ARGS

#   The default arguments to pass to jetty.

#   For example

#      JETTY_ARGS=jetty.port=8080 jetty.spdy.port=8443 jetty.secure.port=443

#

set -e -C

readConfig()

{

  echo "Reading $1.."

  source "$1"

}

CONFIGS=()

if [ -f /etc/default/jetty ]; then

  readConfig /etc/default/jetty

fi

if [ -z "$JETTY_HOME" ]; then

    JETTY_HOME=/usr/share/jetty

fi

if [ -z "$JETTY_BASE" ]; then

  JETTY_BASE="$JETTY_HOME"

fi

cd "$JETTY_BASE"

JETTY_BASE="$PWD"

if [ -z "$JETTY_CONF" ]

then

  JETTY_CONF=/etc/jetty.conf

fi

if [ -f "$JETTY_CONF" ] && [ -r "$JETTY_CONF" ]

then

  while read -r CONF

  do

    if expr "$CONF" : '#' >/dev/null ; then

      continue

    fi

    if [ -d "$CONF" ]

    then

      # assume it's a directory with configure.xml files

      # for example: /etc/jetty.d/

      # sort the files before adding them to the list of JETTY_ARGS

      for XMLFILE in "$CONF/"*.xml

      do

        if [ -r "$XMLFILE" ] && [ -f "$XMLFILE" ]

        then

          JETTY_ARGS+=("$XMLFILE")

        else

          echo "** WARNING: Cannot read '$XMLFILE' specified in '$JETTY_CONF'"

        fi

      done

    else

      # assume it's a command line parameter (let start.jar deal with its validity)

      JETTY_ARGS+=("$CONF")

    fi

  done < "$JETTY_CONF"

fi

if [ -z "$JAVA" ]

then

    . /usr/share/java-utils/java-functions

    set_jvm

    set_javacmd

    JAVA="$JAVACMD"

fi

if [ -z "$JETTY_LOGS" ] && [ -d $JETTY_BASE/logs ]

then

  JETTY_LOGS=/var/log/jetty/logs

fi

JAVA_OPTIONS+=("-Djetty.logs=$JETTY_LOGS")

JAVA_OPTIONS+=("-Djetty.home=$JETTY_HOME" "-Djetty.base=$JETTY_BASE")

JETTY_START="$JETTY_HOME/start.jar"

START_INI="$JETTY_BASE/start.ini"

if [ ! -f "$START_INI" ]

then

  echo "Cannot find a start.ini in your JETTY_BASE directory: $JETTY_BASE" 2>&2

  exit 1

fi

RUN_ARGS=(${JAVA_OPTIONS[@]} -jar "$JETTY_START" ${JETTY_ARGS[*]})

RUN_CMD=("$JAVA" ${RUN_ARGS[@]})

echo -n "Starting Jetty: "

${RUN_CMD[*]}