#!/bin/bash

# Copyright (c) 2021 Cisco and/or its affiliates.
# 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.

echo "---> jjb/scripts/vpp/build.sh"

set -euxo pipefail

line="*************************************************************************"
# Don't build anything if this is a merge job being run when
# the git HEAD id is not the same as the Gerrit New Revision id.
if [[ ${JOB_NAME} == *merge* ]] && [ -n "${GERRIT_NEWREV:-}" ] &&
       [ "$GERRIT_NEWREV" != "$GIT_COMMIT" ] ; then
    echo -e "\n$line\nSkipping build. A newer patch has been merged.\n$line\n"
    exit 0
fi

OS_ID=$(grep '^ID=' /etc/os-release | cut -f2- -d= | sed -e 's/\"//g')
OS_VERSION_ID=$(grep '^VERSION_ID=' /etc/os-release | cut -f2- -d= | sed -e 's/\"//g')
OS_ARCH=$(uname -m)
DRYRUN="${DRYRUN:-}"
IS_CSIT_VPP_JOB="${IS_CSIT_VPP_JOB:-}"
MAKE_PARALLEL_FLAGS="${MAKE_PARALLEL_FLAGS:-}"
MAKE_PARALLEL_JOBS="${MAKE_PARALLEL_JOBS:-}"
MAKE_TEST_OS="${MAKE_TEST_OS:-ubuntu-18.04}"
MAKE_TEST_MULTIWORKER_OS="${MAKE_TEST_MULTIWORKER_OS:-debian-10}"
VPPAPIGEN_TEST_OS="${VPPAPIGEN_TEST_OS:-${MAKE_TEST_OS}}"
BUILD_RESULT="SUCCESSFULLY COMPLETED"
BUILD_ERROR=""
RETVAL="0"

echo "sha1sum of this script: ${0}"
sha1sum $0

# TODO: Mount ccache volume into docker container, then enable this.
#
#export CCACHE_DIR=/scratch/docker-build/ccache
#if [ -d $CCACHE_DIR ];then
#    echo "ccache size:"
#    du -sh $CCACHE_DIR
#else
#    echo $CCACHE_DIR does not exist.
#fi

if [ -n "${MAKE_PARALLEL_FLAGS}" ]
then
  echo "Building VPP. Number of cores for build set with" \
       "MAKE_PARALLEL_FLAGS='${MAKE_PARALLEL_FLAGS}'."
elif [ -n "${MAKE_PARALLEL_JOBS}" ]
then
  echo "Building VPP. Number of cores for build set with" \
       "MAKE_PARALLEL_JOBS='${MAKE_PARALLEL_JOBS}'."
else
  echo "Building VPP. Number of cores not set, " \
       "using build default ($(grep -c ^processor /proc/cpuinfo))."
fi

make_build_test() {
    if ! make UNATTENDED=yes install-dep ; then
        BUILD_ERROR="FAILED 'make install-dep'"
        return
    fi
    if ! make UNATTENDED=yes install-ext-deps ; then
        BUILD_ERROR="FAILED 'make install-ext-deps'"
        return
    fi
    if ! make UNATTENDED=yes pkg-verify ; then
        BUILD_ERROR="FAILED 'make pkg-verify'"
	return
    fi
    if [ "${IS_CSIT_VPP_JOB,,}" == "true" ]; then
	# CSIT jobs don't need to run make test
	return
    fi
    if [ -n "${MAKE_PARALLEL_JOBS}" ]; then
        export TEST_JOBS="${MAKE_PARALLEL_JOBS}"
        echo "Testing VPP with ${TEST_JOBS} cores."
    else
        export TEST_JOBS="auto"
        echo "Testing VPP with automatically calculated number of cores. " \
             "See test logs for the exact number."
    fi
    if [ "${OS_ID}-${OS_VERSION_ID}" == "${VPPAPIGEN_TEST_OS}" ]; then
	if ! src/tools/vppapigen/test_vppapigen.py; then
	    BUILD_ERROR="FAILED src/tools/vppapigen/test_vppapigen.py"
	    return
	fi
    fi
    if [ "${OS_ID}-${OS_VERSION_ID}" == "${MAKE_TEST_OS}" ]; then
	if ! make COMPRESS_FAILED_TEST_LOGS=yes RETRIES=3 test; then
	    BUILD_ERROR="FAILED 'make test'"
	    return
	fi
    else
	echo "Skip running 'make test' on ${OS_ID}-${OS_VERSION_ID}"
    fi
    if [ "${OS_ID}-${OS_VERSION_ID}" == "${MAKE_TEST_MULTIWORKER_OS}" ] && git grep VPP_WORKER_CONFIG; then
	if ! make VPP_WORKER_CONFIG="workers 2" COMPRESS_FAILED_TEST_LOGS=yes RETRIES=3 test; then
	    BUILD_ERROR="FAILED 'make test' with VPP_WORKER_CONFIG='workers 2'"
	    return
	else
          echo -e "\n* VPP ${OS_ID^^}-${OS_VERSION_ID}-${OS_ARCH^^} MULTIWORKER MAKE TEST SUCCESSFULLY COMPLETED\n"
	fi
    else
	echo "Skip running 'make test' with VPP_WORKER_CONFIG='workers 2' on ${OS_ID}-${OS_VERSION_ID}"
    fi
}

if [ "${DRYRUN,,}" != "true" ] ; then
    make_build_test
fi
if [ -n "$BUILD_ERROR" ] ; then
    BUILD_RESULT="$BUILD_ERROR"
    RETVAL="1"
fi
echo -e "\n$line\n* VPP ${OS_ID^^}-${OS_VERSION_ID}-${OS_ARCH^^} BUILD $BUILD_RESULT\n$line\n"
exit $RETVAL