| #!/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. |
| # |
| |
| # Attempts to find a proper value for SPARK_HOME. Should be included using "source" directive. |
| |
| FIND_SPARK_HOME_PYTHON_SCRIPT="$(cd "$(dirname "$0")"; pwd)/find_spark_home.py" |
| |
| # Short circuit if the user already has this set. |
| if [ ! -z "${SPARK_HOME}" ]; then |
| exit 0 |
| elif [ ! -f "$FIND_SPARK_HOME_PYTHON_SCRIPT" ]; then |
| # If we are not in the same directory as find_spark_home.py we are not pip installed so we don't |
| # need to search the different Python directories for a Spark installation. |
| # Note only that, if the user has pip installed PySpark but is directly calling pyspark-shell or |
| # spark-submit in another directory we want to use that version of PySpark rather than the |
| # pip installed version of PySpark. |
| export SPARK_HOME="$(cd "$(dirname "$0")"/..; pwd)" |
| else |
| # We are pip installed, use the Python script to resolve a reasonable SPARK_HOME |
| # Default to standard python3 interpreter unless told otherwise |
| if [[ -z "$PYSPARK_DRIVER_PYTHON" ]]; then |
| PYSPARK_DRIVER_PYTHON="${PYSPARK_PYTHON:-"python3"}" |
| fi |
| export SPARK_HOME=$($PYSPARK_DRIVER_PYTHON "$FIND_SPARK_HOME_PYTHON_SCRIPT") |
| fi |