install-kafka.sh
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install-kafka.sh
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	#!/usr/bin/env bash

	set -xe

	SCALA_VERSION=2.12
	KAFKA_VERSION=2.1.1
	KAFKA_CHECKSUM=a2e8168e8de6b45e8fca1f2883f0744d3c5a939b70d8a47a5428b72188501d4c2fc11bc35759f2392680d4e8ecf2fa9d0e518e77fd28393afba22194ad018b10

	KAFKA_APP="kafka_${SCALA_VERSION}-${KAFKA_VERSION}"
	TARBALL="${KAFKA_APP}.tgz"
	URL="http://apache.mirrors.ovh.net/ftp.apache.org/dist/kafka/${KAFKA_VERSION}/${TARBALL}"
	CHECKSUMS="${TARBALL}.sha512"
	KAFKA_ROOT_DIR=swh/journal/tests
	KAFKA_DIR="${KAFKA_ROOT_DIR}/${KAFKA_APP}"
	KAFKA_LINK="${KAFKA_ROOT_DIR}/kafka"

	case $1 in
	"install")
	echo "Kafka installation started."
	if [ ! -f $TARBALL ]; then
	echo "Kafka download"
	wget $URL
	echo "${KAFKA_CHECKSUM} ${TARBALL}" > $CHECKSUMS
	sha512sum -c $CHECKSUMS

	if [ $? -ne 0 ]; then
	echo "Kafka download: failed to retrieve ${TARBALL}";
	exit 1
	fi
	echo "Kafka download done"
	fi

	if [ ! -d $KAFKA_DIR ]; then
	echo "Kafka extraction"
	tar xvf $TARBALL -C $KAFKA_ROOT_DIR
	pushd $KAFKA_ROOT_DIR && ln -nsf $KAFKA_APP kafka && popd
	echo "Kafka extraction done"
	fi
	echo "Kafka installation done. Kafka is installed at $KAFKA_DIR"
	;;
	"clean")
	echo "Kafka cleanup started."
	[ -d $KAFKA_DIR ] && rm -rf $KAFKA_DIR
	[ -L $KAFKA_LINK ] && rm $KAFKA_LINK
	echo "Kafka cleanup done."
	;;
	"clean-cache")
	echo "Kafka cleanup cache started."
	[ -f $TARBALL ] && rm $TARBALL
	[ -f $CHECKSUMS ] && rm $CHECKSUMS
	echo "Kafka cleanup cache done."
	;;
	*)
	echo "Unknown command, do nothing"
	exit 1;
	esac