| #!/usr/bin/env bash |
| |
| # 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. |
| |
| #==================================== |
| #determine HADOOP_HOME if possible |
| #==================================== |
| function find_hadoop_home() { |
| # check for hadoop in the path |
| HADOOP_IN_PATH=`which hadoop 2>/dev/null` |
| if [ -f ${HADOOP_IN_PATH} ]; then |
| HADOOP_DIR=`dirname "$HADOOP_IN_PATH"`/.. |
| fi |
| # HADOOP_HOME env variable overrides hadoop in the path |
| HADOOP_HOME=${HADOOP_HOME:-${HADOOP_PREFIX:-$HADOOP_DIR}} |
| if [ "$HADOOP_HOME" == "" ]; then |
| echo "Cannot find hadoop installation: \$HADOOP_HOME or \$HADOOP_PREFIX must be set or hadoop must be in the path"; |
| exit 4; |
| fi |
| |
| HADOOP=$HADOOP_HOME/bin/hadoop |
| if [ ! -f ${HADOOP} ]; then |
| echo "Cannot find hadoop installation: \$HADOOP_HOME or \$HADOOP_PREFIX must be set or hadoop must be in the path"; |
| exit 4; |
| fi |
| } |