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|
#!@zsh@/bin/zsh
set -e
PATH=@coreutils@/bin:@findutils@/bin:@gawk@/bin:@inotify@/bin:$PATH
dir=${1:A}
maxSize=$(numfmt --from=auto --to=none -- $2)
shift 2
[[ -d "${dir}" ]] || exit 2
[[ "${maxSize}" = <-> ]] || exit 2
typeset -a findExtra
findExtra=(-not -path ${dir}/CACHEDIR.TAG)
resize() {
echo "Resizing ${dir} to below $(numfmt --to=iec-i --suffix=B -- ${maxSize})..." >&2
while [[ $(du -xbs ${dir} | awk '{ print $1; }') -gt $maxSize ]]; do
find ${dir} -xdev -type f \( ${findExtra} \) -print0 | \
xargs -r0 -- stat --printf '%W %Y %Z %X %n\0' | \
sort -t '\0' -z | \
awk -F '\0' '{ gsub("^\\S+\\s+\\S+\\s+\\S+\\s+\\S+\\s+", "", $1); printf "%s\0", $1; }' | \
xargs -r0 -- rm -v
done
find ${dir} -xdev -xtype l -print0 | xargs -r0 -- rm -v
find ${dir} -xdev -type d \( -not -path ${dir} \) -empty -print0 | xargs -r0 -- rmdir -v
}
case "${1}" in
monitor)
shift
typeset -a inotifyExtra
inotifyExtra=()
if [[ "${1}" = <-> ]]; then
inotifyExtra=(-t "${1}")
shift
fi
while
resize
inotifywait -qq -r ${dir} ${inotifyExtra} \
-e modify \
-e close_write \
-e moved_to \
-e move_self \
-e create
true
do :; done
;;
*)
resize
;;
esac
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