#!/bin/sh

# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.

# This script creates the directory structure required for running Tomcat
# in a separate directory by pointing $CATALINA_BASE to it. It copies the
# conf directory from $CATALINA_HOME, and creates empty directories for
# bin, lib, logs, temp, webapps, and work.
#
# If the file $CATALINA_HOME/bin/setenv.sh exists then it is copied to
# the target directory as well.
#
# Usage: makebase <path-to-target-directory> [-w | --webapps]

# resolve links - $0 may be a softlink
PRG="$0"

while [ -h "$PRG" ]; do
  ls=`ls -ld "$PRG"`
  link=`expr "$ls" : '.*-> \(.*\)$'`
  if expr "$link" : '/.*' > /dev/null; then
    PRG="$link"
  else
    PRG=`dirname "$PRG"`/"$link"
  fi
done

# Get standard environment variables
PRGDIR=`dirname "$PRG"`

# Only set CATALINA_HOME if not already set
[ -z "$CATALINA_HOME" ] && CATALINA_HOME=`cd "$PRGDIR/.." >/dev/null; pwd`

# first arg is the target directory
BASE_TGT=$1

if [ -z "$BASE_TGT" ]; then
    # target directory not provided; exit
    echo "Usage: makebase <path-to-target-directory>"
    exit 1
fi

COPY_WEBAPPS=false

# parse args
while [ "$1" != "" ]; do
    case $1 in
        -w | --webapps)
            COPY_WEBAPPS=true
            ;;
    esac
    shift
done

if [ -d "$BASE_TGT" ]; then
  # target directory exists
  echo "Target directory exists"

    # exit if target directory is not empty
    [ "`ls -A "$BASE_TGT"`" ] && \
        echo "Target directory is not empty" && \
        exit 1
else
    # create the target directory
    mkdir -p "$BASE_TGT"
fi

for dir in bin conf lib logs temp webapps work;
do
    # create empty directories
    mkdir "$BASE_TGT/$dir"
done

if [ "$COPY_WEBAPPS" = true ]; then
    echo "Copying webapps"
    cp -r "$CATALINA_HOME/webapps" "$BASE_TGT/"
    # copy conf directory recursively
    cp -r "$CATALINA_HOME/conf" "$BASE_TGT/"
else
    # copy conf directory without subdirectories and suppress warning
    cp "${CATALINA_HOME}/conf"/* "$BASE_TGT/conf" 2> /dev/null
    # create empty ROOT directory
    mkdir "$BASE_TGT/webapps/ROOT"
fi

# copy setenv.sh if exists
[ -f "$CATALINA_HOME/bin/setenv.sh" ] && \
    cp "$CATALINA_HOME/bin/setenv.sh" "$BASE_TGT/bin/"

echo "Created CATALINA_BASE directory at $BASE_TGT"

echo
echo "You can launch the new instance by running:"
echo "    export CATALINA_HOME=$CATALINA_HOME"
echo "    export CATALINA_BASE=$BASE_TGT"
echo "    \$CATALINA_HOME/bin/catalina.sh run"

echo
echo "Attention: The ports in conf/server.xml might be bound by a "
echo "    different instance. Please review your config files "
echo "    and update them as necessary."
echo