update-kernel

#!/bin/bash

set -e

NUM_CPUS=${NUM_CPUS:-"$(getconf _NPROCESSORS_ONLN)"}
TOP=${TOP:-$(dirname $(pwd))}
LOCAL_KBRANCH="build-test-next"
REMOTE_KBRANCH="next/master"
UPSTREAM='@{u}'
EMAIL_ADDRESS=${EMAIL_ADDRESS:-'anders.roxell@linaro.org'}

usage() {
    echo -e "$0's help text"
    echo -e "$0 -b build-test-next -u next/master -p /path/to/the/kernel/repository"
    echo -e "   -b LOCAL_KBRANCH, local kernel branch, default 'build-test-next'"
    echo -e "   -b REMOTE_KBRANCH, remote kernel branch, default 'next/master'"
    echo -e "   -p PATH, path to kernel dir"
    echo -e "   -h, prints out this help"
}

while getopts "b:u:hp:" arg; do
    case $arg in
        b)
            LOCAL_KBRANCH="$OPTARG"
            ;;
        u)
            REMOTE_KBRANCH="$OPTARG"
            ;;
        p)
            KDIR_PATH="$OPTARG"
            ;;
        h|*)
            usage
            exit 0
            ;;
    esac
done

if [[ ! -d ${KDIR_PATH} ]] &&
    [[ $(grep -c "^WHAT IS LINUX" README) -ne 1 ]] &&
    [[  $(grep -c "^Linux kernel" README) -ne 1 ]]; then
    echo -e "ERROR: Need to run this script $(basename $0),"
    echo -e "  from a kernel repository"
    echo ""
    echo satan
    usage
    exit 1
fi

pushd ${KDIR_PATH} >/dev/null
git fetch $(dirname ${REMOTE_KBRANCH})
LOCAL=$(git rev-parse @)
REMOTE=$(git rev-parse "$UPSTREAM")

if [[ ${LOCAL} = ${REMOTE} ]]; then
	echo "Up-to-date"
else
	git checkout -B ${LOCAL_KBRANCH} ${REMOTE_KBRANCH}
	echo "$(git describe --long)"
	#| mail -s "remote ${REMOTE_KBRANCH} branch updated" ${EMAIL_ADDRESS}
fi

#build-kernel -m am57xx-evm -k linux-next
#build-kernel -m hikey -k linux-next
#build-kernel -m intel-core2-32 -k linux-next

popd >/dev/null