Improved download and verify of build.sf
This commit is contained in:
Stefan Reimer
parent
d484a86107
commit
660beda9c7
125
scripts/build.sh
125
scripts/build.sh
@ -19,55 +19,91 @@ die() {
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}
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verify_digest() {
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local FILE_NAME=$1
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local TYPE=$2
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local DIGEST=$3
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local PURGE=$4
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case $TYPE in
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sha512)
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FILE_DIGEST=$(sha512sum ${FILE_NAME} | awk '{print $1}')
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;;
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md5)
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FILE_DIGEST=$(md5sum ${FILE_NAME} | awk '{print $1}')
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;;
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*)
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echo "Unknown DIGEST"
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return 1
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;;
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esac
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if [ ${FILE_DIGEST} == ${DIGEST} ]; then
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echo "${TYPE} checksum for ${FILE_NAME} verified."
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return 0
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else
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echo "Invalid checksum for ${FILE_NAME}!"
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[ "x${PURGE}" != "x" ] && { echo "Removing cached copy." ; rm -f ${FILE_NAME}; }
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return 1
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fi
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}
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fetch_file() {
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local URL=$1
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local DIGEST=$2
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local DIGEST_URL=$2
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FILE_NAME=$(basename ${URL})
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SHA512=$(curl -q -s -S ${DIGEST} | grep -A1 -e "^# SHA512 HASH" | grep -o -E -e "^[0-9a-f]{128} *${FILE_NAME}$" | awk '{print $1}')
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local FILE_NAME=$(basename ${URL})
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# Check if local cache is usable
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local DIGEST_TYPE
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# Check cache
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if [ ! -d ${LOCAL_CACHE} ] || [ ! -w ${LOCAL_CACHE} ]; then
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die "Local cache ${LOCAL_CACHE} unusable!"
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echo "Cannot write to cache ${LOCAL_CACHE}"
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return 1
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fi
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if [ -z ${SHA512} ]; then
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# If DIGEST requested get it
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if [ ! -z ${DIGEST_URL} ]; then
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DIGEST=$(curl -s -S ${DIGEST_URL} | grep -A1 -e "^# SHA512 HASH" | grep -o -E -e "^[0-9a-f]{128} *${FILE_NAME}$" | awk '{print $1}')
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if [ -z ${DIGEST} ]; then
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# Let's try md5sum before giving up
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MD5=$(curl -q -s -S ${DIGEST} | grep -o -E -e "^[0-9a-f]{32} *${FILE_NAME}$" | awk '{print $1}')
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if [ -z ${MD5} ]; then
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die "Unable to get checksum for ${FILE_NAME}, abort"
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DIGEST=$(curl -s -S ${DIGEST_URL} | grep -o -E -e "^[0-9a-f]{32} *${FILE_NAME}$" | awk '{print $1}')
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if [ -z ${DIGEST} ]; then
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echo "Unable to get checksum for ${FILE_NAME}, abort"
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return 2
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fi
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fi
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# Do we have local copy, if not download
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if [ ! -f ${LOCAL_CACHE}/${FILE_NAME} ]; then
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wget -O ${LOCAL_CACHE}/${FILE_NAME} ${URL} || die "Cannot download ${URL}!"
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fi
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if [ ! -z ${SHA512} ]; then
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if [ $(sha512sum ${LOCAL_CACHE}/${FILE_NAME} | awk '{print $1}') = ${SHA512} ]; then
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echo "SHA512 checksum for ${FILE_NAME} verified."
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cp ${LOCAL_CACHE}/${FILE_NAME} .
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return
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DIGEST_TYPE="md5"
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else
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rm -f ${LOCAL_CACHE}/${FILE_NAME}
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die "Invalid checksum for ${LOCAL_CACHE}/${FILE_NAME}, removing cached copy."
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DIGEST_TYPE="sha512"
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fi
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fi
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if [ ! -z ${MD5} ]; then
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if [ $(md5sum ${LOCAL_CACHE}/${FILE_NAME} | awk '{print $1}') = ${MD5} ]; then
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echo "MD5 checksum for ${FILE_NAME} verified."
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# Do we have local copy
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if [ -f ${LOCAL_CACHE}/${FILE_NAME} ]; then
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verify_digest ${LOCAL_CACHE}/${FILE_NAME} $DIGEST_TYPE ${DIGEST} 1
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if [ $? -eq 0 ]; then
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cp ${LOCAL_CACHE}/${FILE_NAME} .
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echo "Using cached ${LOCAL_CACHE}/${FILE_NAME}"
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return 0
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fi
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fi
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# We we are here either we didnt have a copy or the cached file was invalid
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wget -q -O ${LOCAL_CACHE}/${FILE_NAME} ${URL}
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if [ $? -eq 0 ]; then
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echo "Downloaded ${URL} to ${LOCAL_CACHE}/${FILE_NAME}"
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verify_digest ${LOCAL_CACHE}/${FILE_NAME} $DIGEST_TYPE ${DIGEST} 1
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if [ $? -ne 0 ]; then
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echo "Could not get a verified version of ${FILE_NAME}"
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return 3
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fi
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cp ${LOCAL_CACHE}/${FILE_NAME} .
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return
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else
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rm -f ${LOCAL_CACHE}/${FILE_NAME}
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die "Invalid checksum for ${LOCAL_CACHE}/${FILE_NAME}, removing cached copy."
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echo "Cannot download ${URL}!"
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return 4
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fi
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fi
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die "No checksum available for ${FILE_NAME}!"
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}
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@ -111,22 +147,23 @@ bootstrap() {
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[ -d ${ROOT_FS} ] || die "${ROOT_FS} does not exists"
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[ -w ${ROOT_FS} ] || die "${ROOT_FS} isn't writable"
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# install stage 3
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cd ${ROOT_FS}
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# first install stage 3
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if [ -d "usr" ] ; then
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echo "There seems to be already files in ${ROOT_FS} !"
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echo "Press <Ctrl+c> to abort, or <Return> to proceed with extracting stage3 ..."
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echo "Press <Ctrl+c> to abort, or <Return> to proceed without extracting stage3 ..."
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read -r REPLY
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fi
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fetch_file "${STAGE_TARBALL}" "${STAGE_TARBALL}.DIGESTS"
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else
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fetch_file "${STAGE_TARBALL}" "${STAGE_TARBALL}.DIGESTS" || die "Cannot get ${STAGE_TARBALL}"
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echo "Extracting stage3 to ${ROOT_FS} ..."
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tar jxpf $(basename ${STAGE_TARBALL}) || die "Extracting stage file failed"
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tar jxpf $(basename ${STAGE_TARBALL}) || die "Extracting stage3 failed"
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rm -f $(basename ${STAGE_TARBALL})
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fi
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# Portage snapshot
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PORTAGE_SNAPSHOT="${GENTOO_MIRROR}/releases/snapshots/current/portage-latest.tar.bz2"
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if [ ${BIND_PORTAGE} = 1 ] ; then
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if [ ! -r $MAKE_CONF ]; then
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@ -143,7 +180,11 @@ bootstrap() {
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mount --bind ${HOST_PORTDIR} ${ROOT_FS}/${HOST_PORTDIR} || die "Error mounting ${HOST_PORTDIR}"
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else
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# install latest portage snapshot
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if [ ! -d "usr/portage" ] ; then
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if [ -d "usr/portage" ] ; then
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echo "There seems to be already portage files!"
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echo "Press <Ctrl+c> to abort, or <Return> to proceed without extracting portage ..."
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read -r REPLY
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else
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fetch_file "${PORTAGE_SNAPSHOT}" "${PORTAGE_SNAPSHOT}.md5sum"
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echo "Extracting latest portage snapshot to ${ROOT_FS}/usr ..."
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tar jxf $(basename ${PORTAGE_SNAPSHOT}) -C "${ROOT_FS}/usr" || die "Extracting portage snapshot failed"
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@ -207,7 +248,7 @@ OPTIONS:
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-r chroot location (default $IMAGE_ROOT )
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-c local cache (default $LOCAL_CACHE)
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-b bind mount host portage tree
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-i interactive, setting up chroot and enter it, skip extracting stage3, portage, etc.
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-i interactive, after setting up chroot and enter it
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-m make.conf to source portage location,etc. defaults to /etc/portage/make.conf
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-v Verbose
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EOF
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@ -249,9 +290,7 @@ if [ ${VERBOSE} -eq 1 ]; then
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set -x
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fi
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if [ ${INTERACTIVE} -eq 0 ]; then
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bootstrap ${IMAGE_ROOT} ${PROFILE} ${ARCH}
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fi
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# From here make sure we don't leave stuff around
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trap "cleanup ${IMAGE_ROOT}" INT TERM EXIT
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