install.sh

#!/bin/bash

# Check the current user is root or not.
if [ $EUID -ne 0 ]; then
    echo "You're not root user. using sudo to continue."
    case $0 in
        bash)
            sudo $0 -s $*
            ;;
        *)
            sudo bash $0 $*
            ;;
    esac
    exit 0
fi

checkpackages() {
    for prg in $*; do
        hash $prg 2>/dev/null || return 1
    done

    return 0
}

versiongte() {
    [ "$1" = "$(echo -e "$1\n$2" | sort -V | tail -n1)" ]
}

install_maven() {
    version=$1
    echo "Download and install maven ${version} ..."
    curl -sSL http://archive.apache.org/dist/maven/maven-3/${version}/binaries/apache-maven-${version}-bin.tar.gz |\
        tar -C /opt/ -xzf -
    ln -sf /opt/apache-maven-${version}/bin/mvn /usr/bin/mvn
}

if ! checkpackages curl git javac; then
    # Update repository
    echo "Update repository ..."
    apt-get update -qq

    # Install dependencies
    echo "Installing JDK and other dependencies ..."
    apt-get install -qq curl git openjdk-7-jre openjdk-7-jdk
else
    echo "Dependencies are already installed"
fi

# Maven 3.0.1 or higher required.
mvn_version_to_install='3.3.9'
mvn_version=$(mvn -v 2>/dev/null | grep 'Apache Maven' | awk '{print $3}')
if hash mvn && versiongte $mvn_version '3.0.1'; then
    echo "Required maven version is already installed."
else
    install_maven $mvn_version_to_install
fi

# Copy maven settings
echo "Copying maven settings ..."
if [ -x ~/.m2/settings.xml ]; then
    mv ~/.m2/settings.xml{,.bak}
fi
mkdir -p ~/.m2
chown -R $SUDO_USER:$SUDOUSER ~/.m2
curl -sSL -o ~/.m2/settings.xml \
    https://raw.githubusercontent.com/opendaylight/odlparent/master/settings.xml

# Setting maven opts
if ! grep MAVEN_OPTS ~/.bashrc >/dev/null; then
    echo "Setting maven options to profile ..."
    echo "export MAVEN_OPTS='-Xmx1048m -XX:MaxPermSize=1024m'" >> ~/.bashrc
else
    echo "Maven option is already given."
fi

echo "Done!"