sahara-image-elements/elements/hadoop-mapr/install.d/41-scala

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#!/bin/bash
if [ "${DIB_DEBUG_TRACE:-0}" -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
echo "START: installing Scala"
#Current available version
DEF_VERSION="2.11.6"
RETURN_CODE="$(curl -s -o /dev/null -w "%{http_code}" http://www.scala-lang.org/)"
if [ "$RETURN_CODE" != "200" ]; then
echo "http://www.scala-lang.org is unreachable" && exit 1
fi
if [ -n "${SCALA_VERSION:-}" ]; then
VERSION=${SCALA_VERSION}
elif [ "trusty" == "${DIB_RELEASE:-}" ]; then
# scale >= 2.12 for ubuntu depends on openjdk-8, not available on trusty
VERSION=${DEF_VERSION}
else
VERSION="$(curl -s --fail http://www.scala-lang.org| tr -d '\n' | sed 's/^.*<div[^<]\+scala-version">[^0-9]\+\([0-9\.\?]\+\)<.\+$/\1/')"
if [ $? != 0 -o -z "${VERSION}" ]; then
echo "Installing default version $DEF_VERSION"
VERSION=${DEF_VERSION}
fi
fi
PKG=scala-${VERSION}
URL="http://downloads.lightbend.com/scala/${VERSION}"
if [ "$DISTRO_NAME" = "ubuntu" ]; then
wget -N ${URL}/${PKG}.deb
dpkg -i ${PKG}.deb
rm ${PKG}.deb
elif [ "$DISTRO_NAME" = "centos" -o "$DISTRO_NAME" = "centos7" -o "$DISTRO_NAME" = "rhel" -o "$DISTRO_NAME" = "rhel7" ]; then
rpm -Uhv ${URL}/${PKG}.rpm
fi
echo "END: installing Scala"