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#!/bin/bash
#
# Top level scripts to build basic setup for the host
#

# Copyright 2015 OPNFV
#
# Licensed 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.

#
# Contributors:
#   Aihua Li, Huawei Technologies.
#   Abdul Halim, Intel Corporation.
#   Martin Klozik, Intel Corporation.

ROOT_UID=0
SUDO=""

export VSPERFENV_DIR="$HOME/vsperfenv"

# function to emit error message before quitting
function die() {
    echo $1
    exit 1
}

# determine this machine's distro-version
# replacing 'lsb_release' tool to detect OS distro name with using systemd distribution release file /etc/os-release
# 'lsb_release' is not available by default on Fedora.

. /etc/os-release

# check if root
if [ "$UID" -ne "$ROOT_UID" ]
then
    # installation must be run via sudo
    SUDO="sudo -E"
fi

# Get distro name from variables imported; Special case for 'Fedora 22' - we need to get versions as well
if [ "$NAME" == 'Fedora' -a $VERSION_ID -gt 21 ]
then
    distro_dir="$NAME$VERSION_ID"
else
    distro_dir=`echo "$NAME" | cut -d ' ' -f1`
fi

# build base system
if [ -d "$distro_dir" ] && [ -e $distro_dir/build_base_machine.sh ]; then
    $SUDO $distro_dir/build_base_machine.sh
else
    die "$distro_dir is not yet supported"
fi

if [ -d "$distro_dir" ] && [ -e $distro_dir/prepare_python_env.sh ] ; then
    $distro_dir/prepare_python_env.sh
else
    die "$distro_dir is not yet supported"
fi

if [ ! -d /lib/modules/`uname -r`/build ] ; then
    die "Kernel devel is not available for active kernel. It can be caused by recent kernel update. Please reboot and run $0 again."
fi

# download and compile DPDK, OVS and QEMU
if [ -f ../src/Makefile ] ; then
    cd ../src
    make
    cd -
fi