#!/bin/bash
# -----------------------------------------------------------------------------
# Remotely pushes bits to a remote node in preparation for install.
# -----------------------------------------------------------------------------
function _usage () {
cat << _EOF_
usage:
 $(basename $0) [node]

options:
- [node] : the target node to prime for installation

summary:
 Remotely pushes Atomix bits to a remote node in preparation for install.

 $(basename $0) is invoked as part of 'atomix-install', and shouldn't be
 directly invoked for the most part.

_EOF_
}

[ $# -gt 1 ] || [ "$1" = "-h" ] && _usage && exit 0
[ ! -d "$ONOS_ROOT" ] && echo "ONOS_ROOT isn't set correctly" >&2 && exit 1

set -e

. $ONOS_ROOT/tools/build/envDefaults

ATOMIX_VERSION=${ATOMIX_VERSION:-3.0.7}
ATOMIX_MAVEN=~/.m2/repository/io/atomix/atomix-dist/$ATOMIX_VERSION/atomix-dist-$ATOMIX_VERSION.tar.gz
ATOMIX_LOCAL=/tmp/atomix-$ATOMIX_VERSION.tar.gz
ATOMIX_REMOTE=https://oss.sonatype.org/content/repositories/releases/io/atomix/atomix-dist/$ATOMIX_VERSION/atomix-dist-$ATOMIX_VERSION.tar.gz

node=${1:-$OCI}
remote=$ONOS_USER@$node
remote_with_bracket=$ONOS_USER@[$node]
SSH_OPTIONS=" -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null \
 -o ControlMaster=auto -o ControlPath=~/.ssh/mux-%r@%h:%p \
 -o ControlPersist=300 "

if [ ! -z "$ATOMIX_ROOT" ]; then
  echo "Pushing to $node from $ATOMIX_ROOT"
  ATOMIX_TAR=$ATOMIX_ROOT/dist/target/atomix.tar.gz
elif [ -e $ATOMIX_MAVEN ]; then
  echo "Pushing to $node from $ATOMIX_MAVEN"
  ATOMIX_TAR=$ATOMIX_MAVEN
else
  echo "Pushing to $node from $ATOMIX_LOCAL"
  rm $ATOMIX_LOCAL
  wget -O $ATOMIX_LOCAL $ATOMIX_REMOTE
  ATOMIX_TAR=$ATOMIX_LOCAL
fi

echo "Using scp"

locHash=$(cksum $ATOMIX_TAR | cut -d' ' -f1,2)
remHash=$(ssh $remote cksum /tmp/atomix.tar.gz 2>/dev/null | cut -d' ' -f1,2)

if [ -n "$locHash" ] && [ "$locHash" = "$remHash" ]; then
  echo "Atomix bits /tmp/atomix.tar.gz already up-to-date on $node..."
else
  ssh $remote rm -f $ATOMIX_TAR
  scp -q $ATOMIX_TAR $remote_with_bracket:/tmp/atomix.tar.gz
fi