dockerized

#!/usr/bin/env bash
set -e

source $(dirname "$0")/common.sh

DOCKER_DIR=${KUBEVIRT_DIR}/hack/kubevirt-builder

SYNC_OUT=${SYNC_OUT:-true}

BUILDER=${job_prefix}

SYNC_VENDOR=${SYNC_VENDOR:-false}

TEMPFILE=".rsynctemp"

BUILDER_EXTRA_ARGS=""
if [ -n "${KUBEVIRT_CACHE_FROM}" ]; then
    BUILDER_EXTRA_ARGS="${BUILDER_EXTRA_ARGS} --cache-from kubevirt/builder-cache:${KUBEVIRT_CACHE_FROM}"
fi

if [ -n "${KUBEVIRT_UPDATE_CACHE_FROM}" ]; then
    BUILDER_EXTRA_ARGS="${BUILDER_EXTRA_ARGS} -t kubevirt/builder-cache:${KUBEVIRT_UPDATE_CACHE_FROM}"
fi

# Be less verbose with bazel
if [ -n "${TRAVIS_JOB_ID}" ]; then
    cat >.bazelrc <<EOF
common --noshow_progress --noshow_loading_progress
EOF
fi

# Build the build container
(cd ${DOCKER_DIR} && docker build . ${BUILDER_EXTRA_ARGS} -t ${BUILDER})

# Create the persistent docker volume
if [ -z "$(docker volume list | grep ${BUILDER})" ]; then
    docker volume create --name ${BUILDER}
fi

# Make sure that the output directory exists
docker run -v "${BUILDER}:/root:rw,z" --security-opt label:disable --rm ${BUILDER} mkdir -p /root/go/src/kubevirt.io/kubevirt/_out

# Start an rsyncd instance and make sure it gets stopped after the script exits
RSYNC_CID=$(docker run -d -v "${BUILDER}:/root:rw,z" --security-opt label:disable --expose 873 -P ${BUILDER} /usr/bin/rsync --no-detach --daemon --verbose)

function finish() {
    docker stop ${RSYNC_CID} >/dev/null 2>&1 &
    docker rm -f ${RSYNC_CID} >/dev/null 2>&1 &
}
trap finish EXIT

RSYNCD_PORT=$(docker port $RSYNC_CID 873 | cut -d':' -f2)

rsynch_fail_count=0

while ! rsync ${KUBEVIRT_DIR}/${RSYNCTEMP} "rsync://root@127.0.0.1:${RSYNCD_PORT}/build/${RSYNCTEMP}" &>/dev/null; do
    if [[ "$rsynch_fail_count" -eq 0 ]]; then
        printf "Waiting for rsyncd to be ready"
        sleep .1
    elif [[ "$rsynch_fail_count" -lt 30 ]]; then
        printf "."
        sleep 1
    else
        printf "failed"
        break
    fi
    rsynch_fail_count=$((rsynch_fail_count + 1))
done

printf "\n"

rsynch_fail_count=0

_rsync() {
    rsync -al "$@"
}

# For backward compatibility. If vendorless branches are used we need to make sure
# that they can sync again.
rm -f ${KUBEVIRT_DIR}/.glide*.hash

# Copy kubevirt into the persistent docker volume
_rsync \
    --delete \
    --exclude 'bazel-bin' \
    --exclude 'bazel-genfiles' \
    --exclude 'bazel-kubevirt' \
    --exclude 'bazel-out' \
    --exclude 'bazel-testlogs' \
    --exclude 'cluster/**/.kubectl' \
    --exclude 'cluster/**/.oc' \
    --exclude 'cluster/**/.kubeconfig' \
    --exclude "_out" \
    --exclude ".vagrant" \
    ${KUBEVIRT_DIR}/ \
    "rsync://root@127.0.0.1:${RSYNCD_PORT}/build"

volumes="-v ${BUILDER}:/root:rw,z"

# append .docker directory as volume
mkdir -p "${HOME}/.docker"
volumes="$volumes -v ${HOME}/.docker:/root/.docker:ro,z"

# Ensure that a bazel server is running

if [ -z "$(docker ps --format '{{.Names}}' | grep ${BUILDER}-bazel-server)" ]; then
    docker run --network host -d ${volumes} --security-opt label:disable --name ${BUILDER}-bazel-server -w "/root/go/src/kubevirt.io/kubevirt" --rm ${BUILDER} hack/bazel-server.sh
fi

# Run the command
test -t 1 && USE_TTY="-it"
docker exec ${USE_TTY} ${BUILDER}-bazel-server /entrypoint.sh "$@"

# Copy the whole kubevirt data out to get generated sources and formatting changes
_rsync \
    --exclude 'bazel-bin' \
    --exclude 'bazel-genfiles' \
    --exclude 'bazel-kubevirt' \
    --exclude 'bazel-out' \
    --exclude 'bazel-testlogs' \
    --exclude '.glide*' \
    --exclude 'cluster/**/.kubectl' \
    --exclude 'cluster/**/.oc' \
    --exclude 'cluster/**/.kubeconfig' \
    --exclude "_out" \
    --exclude "vendor" \
    --exclude ".vagrant" \
    --exclude ".git" \
    "rsync://root@127.0.0.1:${RSYNCD_PORT}/build" \
    ${KUBEVIRT_DIR}/

_rsync --delete "rsync://root@127.0.0.1:${RSYNCD_PORT}/build/manifests/generated/" "${KUBEVIRT_DIR}/manifests/generated"
_rsync --delete "rsync://root@127.0.0.1:${RSYNCD_PORT}/build/cluster/examples/" "${KUBEVIRT_DIR}/cluster/examples"
if [ "$SYNC_VENDOR" = "true" ]; then
    _rsync --delete "rsync://root@127.0.0.1:${RSYNCD_PORT}/vendor" "${VENDOR_DIR}/"
fi
# Copy the build output out of the container, make sure that _out exactly matches the build result
if [ "$SYNC_OUT" = "true" ]; then
    _rsync --delete "rsync://root@127.0.0.1:${RSYNCD_PORT}/out" ${OUT_DIR}
fi