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#!/usr/bin/env bash
set -euE
BINDIR=$(dirname $(readlink -f "$0")); . "${BINDIR}/include-git" ## INCLUDE COMMON
export BASEDIR
ARCHIVE=${1:-}
CONFIG="ftpsync${ARCHIVE:+-$ARCHIVE}.conf"
NAME=ftpsync-cron
PROGRAM=ftpsync-cron
read_config "${CONFIG}"
MAILTO=${MAILTO:-${LOGNAME:?Environment variable LOGNAME unset, please check your system or specify MAILTO}}
MIRRORNAME=${MIRRORNAME:-$(hostname -f)}
LOCK=${LOCK:-"${TO}/Archive-Update-in-Progress-${MIRRORNAME}"}
RSYNC_PATH="${RSYNC_PATH:-debian}"
TRACE_UPSTREAM="project/trace/${RSYNC_HOST}"
TRACE="project/trace/${MIRRORNAME}"
function run_ftpsync() {
exec "${BINDIR:+${BINDIR}/}ftpsync" -T "cron" "sync:archive:${ARCHIVE}" "$@"
}
function cmp_trace() {
local trace_uri="http://${RSYNC_HOST}/${RSYNC_PATH}/${TRACE_UPSTREAM}"
local trace_local="${TO}/${TRACE}"
local trace ret
if [[ -e $LOCK ]] && $(kill -0 $(< ${LOCK}) 2>/dev/null); then
return 0
fi
trace=$(curl --silent --fail --show-error --location "$trace_uri" 2>&1)
ret=$?
if [[ $ret != 0 ]]; then
error "Failed to retrieve $trace_uri: $trace"
exit $ret
fi
if ! serial_remote=$(extract_trace_serial_string "$trace"); then
error "Failed to parse archive serial from $trace_uri"
exit 1
elif ! serial_local=$(extract_trace_serial "$trace_local"); then
return 1
elif [[ $serial_remote != $serial_local ]]; then
return 1
fi
}
if ! cmp_trace; then
run_ftpsync
fi
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