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#!/bin/sh
#
set -o errexit -o noglob;
glob() { set +o noglob; echo ${@}; set -o noglob; };
map() { local _ifs="${IFS}" _sep="${1}"; shift; IFS="${_sep}"; echo "${*}"; IFS="${_ifs}"; };
rc() { echo "${@}"; "${@}"; };
rotate_build() {
local _build_dname="${1}" _hostname="${2}" _limit="${3}";
local _dist_dates="";
for _dist_fname in $(glob \
${_build_dname}/*.tar.xz \
${_build_dname}/*.tar.xz.asc); do
if [ -e "${_dist_fname}" ]; then
_dist_date="${_dist_fname#*@${_hostname}-}";
_dist_date="${_dist_date%.tar.xz*}";
_dist_date="${_dist_date%-[0-9][0-9]-[0-9][0-9]-[0-9][0-9]}";
_dist_dates="${_dist_dates:+${_dist_dates} }${_dist_date}";
fi;
done;
if [ -n "${_dist_dates}" ]; then
rotate_build_dates "${_build_dname}" "${_dist_dates}" "${_limit}";
fi;
};
rotate_build_dates() {
local _build_dname="${1}" _dist_dates="${2}" _limit="${3}";
local _dist_dates_count _dist_dates_count_limit="" _dist_fname="" _nl="
"; _dist_dates="$(map "${_nl}" ${_dist_dates} | sort | uniq)";
_dist_dates_count="$(echo "${_dist_dates}" | wc -l)";
if [ "${_dist_dates_count}" -gt "${_limit}" ]; then
_dist_dates_count_limit=$((${_dist_dates_count}-${_limit}));
_dist_dates="$(echo "${_dist_dates}" |\
sed -n "1,${_dist_dates_count_limit}p")";
for _dist_date in ${_dist_dates}; do
for _dist_fname in $(glob \
${_build_dname}/*-${_dist_date}-*.tar.xz*); do
rc rm -f "${_dist_fname}";
done;
done;
fi;
};
rotate_builds() {
local _build_dnames="${1}" _limit="${2}";
local _hostname="$(hostname)";
for _build_dname in ${_build_dnames}; do
rotate_build "${_build_dname}" "${_hostname}" "${_limit}";
done;
};
rotate_builds "${1}" "${2:-3}";
# vim:filetype=sh noexpandtab sw=8 ts=8
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