sql/connect/bin/spark-connect

#!/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.
#

# Start the spark-connect with server logs printed in the standard output. The script rebuild the
# server dependencies and start the server at the default port. This can be used to debug client
# during client development.
#
# Set SCBUILD=0 to skip rebuilding the spark-connect server.

# Go to the Spark project root directory
FWDIR="$(cd "`dirname "$0"`"/../../..; pwd)"
cd "$FWDIR"
export SPARK_HOME=$FWDIR

# Determine the Scala version used in Spark
SCALA_BINARY_VER=`grep "scala.binary.version" "${SPARK_HOME}/pom.xml" | head -n1 | awk -F '[<>]' '{print $3}'`
SCALA_ARG="-Pscala-${SCALA_BINARY_VER}"

SCBUILD="${SCBUILD:-1}"
if [ "$SCBUILD" -eq "1" ]; then
  # Build the jars needed for spark submit and spark connect
  build/sbt "${SCALA_ARG}" -Phive package || exit 1
fi

# This jar is already in the classpath, but the submit commands wants a jar as the input.
CONNECT_JAR=`ls "${SPARK_HOME}"/assembly/target/scala-"${SCALA_BINARY_VER}"/jars/spark-connect_*.jar | paste -sd ',' -`

exec "${SPARK_HOME}"/bin/spark-submit "$@" --class org.apache.spark.sql.connect.SimpleSparkConnectService "$CONNECT_JAR"