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os-kernel/scripts/extract

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#!/bin/bash
set -e
cd $(dirname $0)/..
source scripts/build-common
KERNEL=$(basename ${KERNEL_URL})
DIR=${KERNEL/.tar.*//}
mkdir -p ${BUILD}
cd ${BUILD}
if [ ! -e ${DIR} ]; then
echo Extracting ${ARTIFACTS}/${KERNEL}
TEMP=$(mktemp -d -p ${BUILD})
mkdir ${TEMP}/${DIR}
trap "rm -rf ${TEMP}" exit
tar xf ${ARTIFACTS}/${KERNEL} -C ${TEMP}/${DIR} --strip-components=1
mv ${TEMP}/${DIR} ${DIR}
fi
cp ${CONFIG}/kernel-config ${DIR}/.config