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#!@zsh@/bin/zsh
typeset -A opts
zparseopts -A opts -M -- -delta: d:=-delta -interval: i:=-interval
delta_t=${opts[--delta]:-20}
interval=${opts[--interval]:-3600}
staggerFile=~/.rss-stagger
[[ "${FLOCKER}" != "$0" ]] && exec env FLOCKER="$0" flock -x "${staggerFile}" "$0" "$@" || :
typeset -A feeds
r2e list | while read num junk name junk; do
num=${num%:}
feeds[${num}]=${name}
done
max=$(($#feeds))
num=$(((max * delta_t) / interval))
[[ $num -lt 1 ]] && num=1
now=$(cat ${staggerFile} || echo 0)
now=$((now % max))
typeset -a run
run=()
typeset -a names
names=()
n=0
for i in $(seq $((now + 1)) $((now + num + 1))); do
n=$((i % max))
run+=$n
names+=$feeds[${n}]
done
echo $n >! ${staggerFile}
printf "Retrieving: %s\n" ${(j:, :)names}
exec @rss2email@/bin/r2e run $run
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