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#!/bin/sh
# SPDX-License-Identifier: MIT
# SPDX-FileCopyrightText: 2021 Jakub Jirutka <jakub@jirutka.cz>
#---help---
# Usage: radacct-rotate [options]
#
# Compress and later remove old FreeRADIUS' radacct log files with "-YYYYMMDD"
# suffix. This script is provided by the freeradius package in Alpine Linux.
#
# Options:
# -C FILE Location of radacct-rotate config file (defaults to
# /etc/raddb/radacct-rotate.conf).
#
# -c DAYS Compress files older than DAYS (overrides option
# compress_after_days from the config).
#
# -r DAYS Remove compressed files older than DAYS (overrides
# option remove_after_days from the config).
#
# -d Run in dry-run mode (only print what would be done).
#
# -h Show this message and exit.
#---help---
set -eu
readonly PROGNAME='radacct-rotate'
# Y Y Y Y m m d d
readonly DATE_GLOB='[1-9][0-9][0-9][0-9][0-1][0-9][0-3][0-9]'
readonly HELP_TAG='#---help---'
# Defaults
CONFIG='/etc/raddb/radacct-rotate.conf'
DRY_RUN=false
radacct_dir='/var/log/radius/radacct'
compress_cmd='gzip -9'
compress_ext='.gz'
compress_after_days=2
remove_after_days=180
while getopts ':C:c:dr:h' OPT; do
case "$OPT" in
C) CONFIG=$OPTARG;;
c) COMPRESS_AFTER_DAYS=$OPTARG;;
d) DRY_RUN=true;;
r) REMOVE_AFTER_DAYS=$OPTARG;;
h) sed -n "/^$HELP_TAG/,/^$HELP_TAG/{/^$HELP_TAG/d; s/^# \\?//; p;}" "$0"; exit 0;;
\?) echo "$PROGNAME: invalid option: -$OPTARG (see '$PROGNAME -h')" >&2; exit 100;;
esac
done
readonly CONFIG COMPRESS_AFTER_DAYS DRY_RUN REMOVE_AFTER_DAYS
sh -n "$CONFIG" || exit 100
. "$CONFIG"
compress_after_days=${COMPRESS_AFTER_DAYS:-$compress_after_days}
remove_after_days=${REMOVE_AFTER_DAYS:-$remove_after_days}
find_compressible() {
find "$radacct_dir" -type f -name "*-$DATE_GLOB" -mtime "+$compress_after_days" "$@"
}
find_deletable() {
find "$radacct_dir" -type f -name "*-${DATE_GLOB}${compress_ext}" -mtime "+$remove_after_days" "$@"
}
check_number() {
case "$1" in
''|*[!0-9]*) echo "$PROGNAME: option '$2' must be a number, but given: '$1'" >&2; exit 100;;
esac
}
check_number "$compress_after_days" 'compress_after_days'
check_number "$remove_after_days" 'remove_after_days'
rc=0
if $DRY_RUN; then
find_compressible -exec echo $compress_cmd {} \; || rc=111
find_deletable -exec echo rm {} \; || rc=111
else
for path in $(find_compressible -print); do
$compress_cmd "$path" >&2 && touch -ct "${path##*-}0000" "$path".* || rc=111
done
find_deletable -exec rm '{}' \; >&2 || rc=111
fi
exit $rc
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