#! /bin/sh

set -e

run () {
    echo "$@"
    "$@" || exit 1
}

# Put built tools early in $PATH.
builddir=`pwd`
if test ! -e vswitchd/ovs-vswitchd; then
    echo >&2 'not in build directory, please change directory or run via \"make check-oftest'
    exit 1
fi
PATH=$builddir/ovsdb:$builddir/vswitchd:$builddir/utilities:$PATH; export PATH

# Find srcdir.
case $srcdir in
    '') srcdir=$builddir ;;
    /*) ;;
    *) srcdir=`pwd`/$srcdir ;;
esac
if test ! -e "$srcdir"/WHY-OVS.md; then
    echo >&2 'source directory not found, please set $srcdir or run via \"make check-oftest'
    exit 1
fi

# Make sure oftest is available.
if test X"$OFT" = X; then
    OFT=oft
fi
if ($OFT --version) >/dev/null 2>&1; then
    :
else
    echo >&2 'OFTest "oft" binary not found or cannot be run, please add to $PATH or set $OFT'
    exit 1
fi

# Create sandbox.
rm -rf sandbox
mkdir sandbox
cd sandbox
sandbox=`pwd`

# Set up environment for OVS programs to sandbox themselves.
OVS_RUNDIR=$sandbox; export OVS_RUNDIR
OVS_LOGDIR=$sandbox; export OVS_LOGDIR
OVS_DBDIR=$sandbox; export OVS_DBDIR
OVS_SYSCONFDIR=$sandbox; export OVS_SYSCONFDIR

trap 'kill `cat *.pid`' 0 1 2 3 13 14 15

# Create database and start ovsdb-server.
touch .conf.db.~lock~
rm -f conf.db
run ovsdb-tool create conf.db "$srcdir"/vswitchd/vswitch.ovsschema
run ovsdb-server --detach --no-chdir --pidfile -vconsole:off --log-file \
    --remote=punix:"$sandbox"/db.sock

# Start ovs-vswitchd.
run ovs-vswitchd --detach --no-chdir --pidfile -vconsole:off --log-file \
    --enable-dummy --disable-system -vvconn -vnetdev_dummy

# Add a bridge and some ports for OFTest to use,
# and configure ovs-vswitchd to connect to OFTest.
run ovs-vsctl --no-wait \
    -- add-br br0 \
    -- set bridge br0 datapath-type=dummy fail-mode=secure
for port in p1 p2 p3 p4; do
    run ovs-vsctl --no-wait \
	-- add-port br0 $port \
	-- set interface $port type=dummy \
                               options:pstream=punix:$OVS_RUNDIR/$port
done
run ovs-vsctl \
    -- set-controller br0 tcp:127.0.0.1:6653 \
    -- set controller br0 connection-mode=out-of-band max-backoff=1000

# Run OFTest.
run $OFT -P ovs-dummy $OFTFLAGS; status=$?

cat <<EOF

----------------------------------------------------------------------
Logs may be found under $sandbox, e.g.:
	$sandbox/oft.log
	$sandbox/ovs-vswitchd.log
	$sandbox/ovsdb-server.log
----------------------------------------------------------------------
EOF

# Propagate OFTest exit status.
exit $status