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#!/bin/bash
# Syncs Arch repos based on info contained in repo.db files
# License: GPLv3
# Principles
# * Get repo.db from an Arch-like repo
# * Generate a list of available packages
# * Create sync whitelist (based on package blacklist)
# * Get packages
# * Check package signatures
# * Check database signatures
# * Sync repo => repo
# TODO
# * make a tarball of files used for forensics
# * get files db
# Run as `V=true db-sync` to get verbose output
VERBOSE=${V}
${VERBOSE} && extra="-v"
WORKDIR=$(mktemp -dt "${0##*/}.XXXXXXXXXX")
trap "rm -rf -- $(printf '%q' "${WORKDIR}")" EXIT
# Returns contents of a repo
get_repos() {
# Exclude everything but db files
rsync ${extra} -mrtlH --no-p --include="*/" \
--include="*.db" \
--include="*${DBEXT}" \
--include="*.files" \
--include="*${FILESEXT}" \
--exclude="*" \
--delete-after \
rsync://${mirror}/${mirrorpath}/ "$WORKDIR"
}
get_repo_content() {
# Return all contents
bsdtar tf ${1} | \
cut -d "/" -f 1 | \
sort -u
}
# Prints blacklisted packages
get_blacklist() {
cut -d ':' -f 1 "${BLACKLIST_FILE}"
}
# repo
# arch
get_repo_file() {
echo "${WORKDIR}/${1}/os/${2}/${1}"
}
# Process the databases and get the libre packages
init() {
# Get the blacklisted packages
blacklist=($(get_blacklist))
# Store all the whitelist files
whitelists=()
msg "${#blacklist[@]} packages in blacklist"
# Sync the repos databases
get_repos
# Traverse all repo-arch pairs
for _repo in ${ARCHREPOS[@]}; do
for _arch in ${ARCHARCHES[@]}; do
msg "Processing ${_repo}-${_arch}"
db_file=$(get_repo_file ${_repo} ${_arch})${DBEXT}
files_file=$(get_repo_file ${_repo} ${_arch})${FILESEXT}
if [ ! -f "${db_file}" ]; then
warning "%s doesn't exist, skipping this repo-arch" "${db_file}"
continue
fi
if [ ! -f "${files_file}" ]; then
warning "%s doesn't exist, skipping this repo-arch" "${files_file}"
continue
fi
# Remove blacklisted packages and count them
# TODO capture all removed packages for printing on debug mode
msg2 "Removing blacklisted packages from .db database..."
LC_ALL=C repo-remove "${db_file}" "${blacklist[@]}"
msg2 "Removing blacklisted packages from .files database..."
LC_ALL=C repo-remove "${files_file}" "${blacklist[@]}"
# Get db contents
db=($(get_repo_content ${db_file}))
msg2 "Process clean db for syncing..."
# Create a whitelist, add * wildcard to end
# TODO due to lack of -arch suffix, the pool sync retrieves every arch even if
# we aren't syncing them
echo ${db[@]} | tr ' ' "\n" | sed "s|$|*|g" > /tmp/${_repo}-${_arch}.whitelist
msg2 "$(wc -l /tmp/${_repo}-${_arch}.whitelist | cut -d' ' -f1) packages in whitelist"
# Sync excluding everything but whitelist
# We delete here for cleanup
rsync ${extra} -rtlH \
--delete-after \
--delete-excluded \
--delay-updates \
--include-from=/tmp/${_repo}-${_arch}.whitelist \
--exclude="*" \
rsync://${mirror}/${mirrorpath}/${_repo}/os/${_arch}/ \
${FTP_BASE}/${_repo}/os/${_arch}/
# Add a new whitelist
whitelists+=(/tmp/${_repo}-${_arch}.whitelist)
msg "Putting databases back in place"
rsync ${extra} -rtlH \
--delay-updates \
--safe-links \
"${WORKDIR}/${_repo}/os/${_arch}/" \
${FTP_BASE}/${_repo}/os/${_arch}/
# Cleanup
unset db
done
done
msg "Syncing package pool"
# Concatenate all whitelists
cat ${whitelists[@]} | sort -u > /tmp/any.whitelist
msg2 "Retrieving $(wc -l /tmp/any.whitelist | cut -d' ' -f1) packages from pool"
# Sync
# *Don't delete-after*, this is the job of cleanup scripts. It will remove our
# packages too
for PKGPOOL in ${PKGPOOLS[@]}; do
rsync ${extra} -rtlH \
--delay-updates \
--safe-links \
--include-from=/tmp/any.whitelist \
--exclude="*" \
rsync://${mirror}/${mirrorpath}/${PKGPOOL}/ \
${FTP_BASE}/${PKGPOOL}/
done
# Sync sources
msg "Syncing source pool"
#sed "s|\.pkg\.tar\.|.src.tar.|" /tmp/any.whitelist > /tmp/any-src.whitelist
#msg2 "Retrieving $(wc -l /tmp/any-src.whitelist | cut -d' ' -f1) sources from pool"
# Sync
# *Don't delete-after*, this is the job of cleanup scripts. It will remove our
# packages too
for SRCPOOL in ${SRCPOOLS[@]}; do
rsync ${extra} -rtlH \
--delay-updates \
--safe-links \
--include-from=/tmp/any.whitelist \
--exclude="*" \
rsync://${mirror}/${mirrorpath}/${SRCPOOL}/ \
${FTP_BASE}/${SRCPOOL}/
done
# Cleanup
unset blacklist whitelists _arch _repo repo_file
}
trap_exit() {
echo
error "$@"
exit 1
}
source "$(dirname "$(readlink -e "$0")")/config"
source "$(dirname "$(readlink -e "$0")")/local_config"
source "$(dirname "$(readlink -e "$0")")/libremessages"
# From makepkg
set -E
trap 'trap_exit "$(gettext "TERM signal caught. Exiting...")"' TERM HUP QUIT
trap 'trap_exit "$(gettext "Aborted by user! Exiting...")"' INT
trap 'trap_exit "$(gettext "An unknown error has occurred. Exiting...")"' ERR
init
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