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|
#!/bin/sh
#
# Download the current Gentoo stage3
#
# Copyright (C) 2014-2018 W. Trevor King <wking@tremily.us>
#
# 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.
die()
{
echo "$1"
exit 1
}
MIRROR="${MIRROR:-http://distfiles.gentoo.org/}"
if test -n "${STAGE3}"
then
if test -n "${STAGE3_ARCH}"
then
die 'if you set STAGE3, you do not need to set STAGE3_ARCH'
fi
if test -n "${DATE}"
then
die 'if you set STAGE3, you do not need to set DATE'
fi
STAGE3_ARCH=$(echo "${STAGE3}" | sed -n 's/stage3-\([^-]*\)-.*/\1/p')
if test -z "${STAGE3_ARCH}"
then
die "could not calculate STAGE3_ARCH from ${STAGE3}"
fi
DATE=$(echo "${STAGE3}" | sed -n "s/stage3-${STAGE3_ARCH}-\([0-9TZ]*\)[.]tar[.].*/\1/p")
if test -z "${DATE}"
then
die "could not calculate DATE from ${STAGE3}"
fi
else
STAGE3_ARCH="${STAGE3_ARCH:-amd64}"
fi
if test -z "${BASE_ARCH}"
then
case "${STAGE3_ARCH}" in
arm*)
BASE_ARCH=arm
;;
i[46]86)
BASE_ARCH=x86
;;
ppc*)
BASE_ARCH=ppc
;;
*)
BASE_ARCH="${STAGE3_ARCH}"
;;
esac
fi
BASE_ARCH_URL="${BASE_ARCH_URL:-${MIRROR}releases/${BASE_ARCH}/autobuilds/}"
if test -z "${STAGE3}"
then
LATEST=$(wget -O - "${BASE_ARCH_URL}latest-stage3.txt")
if test -z "${DATE}"
then
DATE=$(echo "${LATEST}" | sed -n "s|/stage3-${STAGE3_ARCH}-[0-9TZ]*[.]tar.*||p")
if test -z "${DATE}"
then
die "could not calculate DATE from ${BASE_ARCH_URL}latest-stage3.txt"
fi
fi
STAGE3=$(echo "${LATEST}" | sed -n "s|${DATE}/\(stage3-${STAGE3_ARCH}-${DATE}[.]tar[.][^ ]*\) .*|\1|p")
if test -z "${STAGE3}"
then
die "could not calculate STAGE3 from ${BASE_ARCH_URL}latest-stage3.txt"
fi
fi
ARCH_URL="${ARCH_URL:-${BASE_ARCH_URL}${DATE}/}"
STAGE3_CONTENTS="${STAGE3_CONTENTS:-${STAGE3}.CONTENTS}"
STAGE3_DIGESTS="${STAGE3_DIGESTS:-${STAGE3}.DIGESTS.asc}"
COMPRESSION=$(echo "${STAGE3}" | sed -n 's/^.*[.]\([^.]*\)$/\1/p')
if test -z "${COMPRESSION}"
then
die "could not calculate COMPRESSION from ${STAGE3}"
fi
for FILE in "${STAGE3}" "${STAGE3_CONTENTS}" "${STAGE3_DIGESTS}"; do
if [ ! -f "downloads/${FILE}" ]; then
wget -O "downloads/${FILE}" "${ARCH_URL}${FILE}"
if [ "$?" -ne 0 ]; then
rm -f "downloads/${FILE}" &&
die "failed to download ${ARCH_URL}${FILE}"
fi
fi
FILE_NOCOMPRESSION=$(echo "${FILE}" | sed "s/[.]${COMPRESSION}//")
if [ "${FILE_NOCOMPRESSION}" = "${FILE}" ]; then
die "unable to remove .${COMPRESSION} from ${FILE}"
fi
CURRENT=$(echo "${FILE_NOCOMPRESSION}" | sed "s/${DATE}/current/")
(
cd downloads &&
rm -f "${CURRENT}" &&
ln -s "${FILE}" "${CURRENT}" ||
die "failed to link ${CURRENT} -> ${FILE}"
)
done
|
