rougail/upgrade/pre_download/90-fill-apt-cache

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#!/bin/sh
set -e
ISO_DIR='/var/lib/eole/iso'
ISO_IMAGE=$(ls -1 ${ISO_DIR}/*.iso 2>/dev/null || true)
APT_CACHER_DIR='/var/cache/apt-cacher-ng'
APT_DIR='/var/cache/apt/archives'
MOUNT_POINT=
## Called at the end of the file
main() {
if [ $(echo "${ISO_IMAGE}" | wc -l) -gt 1 ]
then
die "more than one ISO image detected: ${ISO_IMAGE}"
fi
if [ -d "${APT_CACHER_DIR}" ]
then
populate_apt_cacher_cache
else
populate_apt_cache
fi
}
populate_apt_cache() {
MOUNT_POINT='/media/cdrom'
mount_iso "${ISO_IMAGE}" "${MOUNT_POINT}"
if find "${MOUNT_POINT}" -type f -name '*.deb' | xargs -I{} cp {} "${APT_DIR}"
then
echo "APT cache directory populated"
else
die "unablo to populate APT cache"
fi
}
populate_apt_cacher_cache() {
MOUNT_POINT="${APT_CACHER_DIR}/_import"
mount_iso "${ISO_IMAGE}" "${MOUNT_POINT}"
APT_CACHER_IMPORT_LOG=/tmp/apt-cacher-import.log
APT_CACHER_PORT=$(CreoleGet apt_cacher_port)
CURRENT_DISTRIB=$(lsb_release --codename --short)
NEXT_DISTRIB=$(awk '/^Suite:/ {print $2}' "${MOUNT_POINT}/dists/stable/Release")
TMP_SL=/tmp/next-apt-sources.list
# Build a temporary sources.list
# EOLE references are OK
cp /etc/apt/sources.list ${TMP_SL}
sed -i -e "s,${CURRENT_DISTRIB},${NEXT_DISTRIB}," ${TMP_SL}
# Clean apt cache
rm -f /var/cache/apt/*cache.bin
rm -f /var/lib/apt/lists/*Packages
rm -f /var/lib/apt/lists/*Sources
apt-get -o Dir::Etc::SourceList=${TMP_SL} update
IMPORT_URL="http://localhost:${APT_CACHER_PORT}/acng-report.html?abortOnErrors=aOe&doImport=Start+Import&calcSize=cs&asNeeded=an"
ERROR_PATTERN='(No appropriate files found in the _import directory|color=red)'
wget -O "${APT_CACHER_IMPORT_LOG}" -q "${IMPORT_URL}"
ERRORS=$(sed -n -E "/${ERROR_PATTERN}/ s,<[^>]*>,,gp" "${APT_CACHER_IMPORT_LOG}")
if [ -n "${ERRORS}" ]
then
die "import log contains errors: ${ERRORS}"
else
echo "APT-CACHER cache populated"
fi
}
mount_iso() {
ISO="${1}"
MOUNT_POINT="$2"
[ -d "${MOUNT_POINT}" ] || mkdir "${MOUNT_POINT}"
if ! mount -o loop,ro "${ISO}" "${MOUNT_POINT}"
then
die "unable to mount “${ISO}"
fi
}
die(){ echo 'Error:' $@ >&2; exit 1; }
_clean() {
EXIT_CODE=$?
# Do not abort on failure as we are in SIGHANDLER
set +e
# Make script idempotent
umount "${MOUNT_POINT}" 2> /dev/null
rmdir "${MOUNT_POINT}" 2> /dev/null
# Use main script exit code
return ${EXIT_CODE}
}
trap _clean EXIT
main $@