# pro-archman
# src/garbage.sh
# Functions for garbage collection
#
# Copyright (C) 2013 Patrick McDermott
#
# This file is part of the ProteanOS Archive Manager.
#
# The ProteanOS Archive Manager is free software: you can redistribute
# it and/or modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# The ProteanOS Archive Manager is distributed in the hope that it
# will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with the ProteanOS Archive Manager. If not, see
# .
time()
{
# Based on code from by Rich
# Felker, with whitespace added for readability.
printf '%d' $(($(TZ=UTC0 date "+
(
(%Y - 1600) * 365
+ (%Y - 1600) / 4
- (%Y - 1600) / 100
+ (%Y - 1600) / 400
+ 1%j - 1000
- 135140
) * 86400
+ (1%H - 100) * 3600
+ (1%M - 100) * 60
+ (1%S - 100)")))
}
collect_garbage()
{
local cur_time=
local garbage=
local gar_time=
local dirs=
local file=
info_v "$(get_msg 'collecting_garbage')"
cur_time=$(time)
for garbage in "${base_dir}/.db/garbage/"*; do
if [ ! -f "${garbage}" ]; then
continue
fi
gar_time=${garbage##*/}
if [ ${cur_time} -lt ${gar_time} ]; then
break
fi
while read -r dirs file; do
info_v "$(get_msg 'collecting_garbage_file')" "${file}"
rm -f "${base_dir}/${file}"
while [ ${dirs} -gt 0 ]; do
file="${file%/*}"
try_rmdir "${base_dir}/${file}"
dirs=$((${dirs} - 1))
done
done <"${garbage}"
rm -f "${garbage}"
done
return 0
}
mark_pool_garbage()
{
local file="${1}"
shift 1
local time=
info_v "$(get_msg 'marking_garbage_file')" "${file}"
time=$(time)
time=$((${time} + ${conf_pool_gc_delay}))
mkdir -p "${base_dir}/.db/garbage"
printf '2 %s\n' "${file}" >>"${base_dir}/.db/garbage/${time}"
return 0
}