#!/bin/bash
set -e

ROOT_DIR=$(readlink -f $(dirname $0))

source ${ROOT_DIR}/helper/generic
export CONFIGURE_FLAGS=""

export GIT_BRANCH="${GIT_BRANCH:-master}"
export COMPARE_BRANCH="${COMPARE_BRANCH:-api-next}"
export GENERIC_SRCDIR="${GENERIC_SRCDIR:-${SRCDIR}/odp}"
export GENERIC_BUILDDIR="${GENERIC_BUILDDIR:-${BUILDDIR}/odp_diff}"
export COMPARE_BUILDDIR="${COMPARE_BUILDDIR:-${BUILDDIR}/odp_diff_2}"
export CLEANUP="${CLEANUP:-1}"
export COMPARE_URL="${COMPARE_URL:-""}"
PLATFORM=${PLATFORM:-linux-generic}
DETAILED_DIFF=${DETAILED_DIFF:-0}
DETAILED_DIFF_FLAGS=""

API_LOGDIR="${LOGDIR}/diff-api"
LOGFILE_BASENAME="${LOGFILE_BASENAME:-default}"
LOGFILE="${API_LOGDIR}/${LOGFILE_BASENAME}-$(date "+%Y%m%d_%H%M")"
mkdir -p ${API_LOGDIR}

publishing=${ROOT_DIR}/publishing/diff-api
mkdir -p ${publishing}

trap cleanup_exit INT TERM EXIT

cleanup_exit()
{
    if [[ ${CLEANUP} -eq 1 ]]; then
        rm -rf ${GENERIC_BUILDDIR}
        rm -rf ${COMPARE_BUILDDIR}
        rm -rf odp_diff*
        rm -rf ${API_LOGDIR}
        ${PLATFORM_SHORT}_cleanup
    fi
}

usage() {
    echo -e "$0 makes use of the following environment variables,"
    echo -e "\tCOMPARE_URL:\t which ODP git repo to use, default: NONE"
    echo -e "\tCOMPARE_BRANCH:\t which branch to checkout and test, default: master"
    echo -e "\tCLEANUP:\t to save workspace set CLEANUP=0, default: ${CLEANUP}"
    echo -e "\tDETAILED_DIFF:\t to see a detailed list set DETAILED_DIFF=1, default: 0"
    ${PLATFORM_SHORT}_usage
}

prepare_platform

if [[ "x$1" = "x-h" || "x$1" = "x--help" ]]; then
    usage
    exit 0
fi

display_os

if [ ${DETAILED_DIFF} -eq 1 ]; then
    DETAILED_DIFF_FLAGS="--detailed --brief"
fi

${PLATFORM_SHORT}_get

# Default compare branch and repo, if you don't set anything you will default
# to api-next and upstream repo odp (linux-generic)
if [ -z ${COMPARE_URL} ]; then
    COMPARE_URL=${GIT_URL}
fi

if [ ! -d "$GENERIC_BUILDDIR" ]; then
    setup_builddir ${GENERIC_SRCDIR} ${GIT_URL} ${GIT_BRANCH} ${GENERIC_BUILDDIR}
fi

if [ ! -d "$COMPARE_BUILDDIR" ]; then
    setup_builddir ${GENERIC_SRCDIR} ${COMPARE_URL} ${COMPARE_BRANCH} ${COMPARE_BUILDDIR}
fi

if [[ -d ${COMPARE_BUILDDIR}/platform/linux-dpdk ]]; then
    source ${ROOT_DIR}/helper/platform/dpdk
    dpdk_prepare >>${LOGFILE}-${4}-prepare.log 2>&1
    dpdk_get >>${LOGFILE}-${4}-prepare.log 2>&1
    dpdk_build >>${LOGFILE}-${4}-prepare.log 2>&1
fi

${ROOT_DIR}/helper/api_diff/dox_api_signature.pl --generate --in_dir=${GENERIC_BUILDDIR} >/dev/null
${ROOT_DIR}/helper/api_diff/dox_api_signature.pl --generate --configure="${CONFIGURE_FLAGS}" --in_dir=${COMPARE_BUILDDIR} >/dev/null
${ROOT_DIR}/helper/api_diff/dox_diff_repos.pl ${DETAILED_DIFF_FLAGS} --git_dir=${GENERIC_BUILDDIR} --git_dir=${COMPARE_BUILDDIR} --no-generate | tee ${publishing}/$(basename ${GIT_URL})-${GIT_BRANCH}_VS_$(basename ${COMPARE_URL})-${COMPARE_BRANCH}-api-diff.txt
## vim: set sw=4 sts=4 et foldmethod=syntax : ##