s3fs-fuse/test/sample_delcache.sh
Andrew Gaul 8fb70c5e4a Fix expandtab settings for tests
This matches the main source.
2020-09-15 22:11:14 +09:00

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#!/bin/sh
#
# s3fs - FUSE-based file system backed by Amazon S3
#
# Copyright 2007-2008 Randy Rizun <rrizun@gmail.com>
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
#
# This is unsupport sample deleting cache files script.
# So s3fs's local cache files(stats and objects) grow up,
# you need to delete these.
# This script deletes these files with total size limit
# by sorted atime of files.
# You can modify this script for your system.
#
# [Usage] script <bucket name> <cache path> <limit size> [-silent]
#
func_usage()
{
echo ""
echo "Usage: $1 <bucket name> <cache path> <limit size> [-silent]"
echo " $1 -h"
echo "Sample: $1 mybucket /tmp/s3fs/cache 1073741824"
echo ""
echo " bucket name = bucket name which specified s3fs option"
echo " cache path = cache directory path which specified by"
echo " use_cache s3fs option."
echo " limit size = limit for total cache files size."
echo " specify by BYTE"
echo " -silent = silent mode"
echo ""
}
PRGNAME=`basename $0`
if [ "X$1" = "X-h" -o "X$1" = "X-H" ]; then
func_usage $PRGNAME
exit 0
fi
if [ "X$1" = "X" -o "X$2" = "X" -o "X$3" = "X" ]; then
func_usage $PRGNAME
exit 1
fi
BUCKET=$1
CDIR="$2"
LIMIT=$3
SILENT=0
if [ "X$4" = "X-silent" ]; then
SILENT=1
fi
FILES_CDIR="${CDIR}/${BUCKET}"
STATS_CDIR="${CDIR}/.${BUCKET}.stat"
CURRENT_CACHE_SIZE=`du -sb "$FILES_CDIR" | awk '{print $1}'`
#
# Check total size
#
if [ $LIMIT -ge $CURRENT_CACHE_SIZE ]; then
if [ $SILENT -ne 1 ]; then
echo "$FILES_CDIR ($CURRENT_CACHE_SIZE) is below allowed $LIMIT"
fi
exit 0
fi
#
# Remove loop
#
TMP_ATIME=0
TMP_STATS=""
TMP_CFILE=""
#
# Make file list by sorted access time
#
find "$STATS_CDIR" -type f -exec stat -c "%X:%n" "{}" \; | sort | while read part
do
echo Looking at $part
TMP_ATIME=`echo "$part" | cut -d: -f1`
TMP_STATS="`echo "$part" | cut -d: -f2`"
TMP_CFILE=`echo "$TMP_STATS" | sed s/\.$BUCKET\.stat/$BUCKET/`
if [ `stat -c %X "$TMP_STATS"` -eq $TMP_ATIME ]; then
rm -f "$TMP_STATS" "$TMP_CFILE" > /dev/null 2>&1
if [ $? -ne 0 ]; then
if [ $SILENT -ne 1 ]; then
echo "ERROR: Could not remove files($TMP_STATS,$TMP_CFILE)"
fi
exit 1
else
if [ $SILENT -ne 1 ]; then
echo "remove file: $TMP_CFILE $TMP_STATS"
fi
fi
fi
if [ $LIMIT -ge `du -sb "$FILES_CDIR" | awk '{print $1}'` ]; then
if [ $SILENT -ne 1 ]; then
echo "finish removing files"
fi
break
fi
done
if [ $SILENT -ne 1 ]; then
TOTAL_SIZE=`du -sb "$FILES_CDIR" | awk '{print $1}'`
echo "Finish: $FILES_CDIR total size is $TOTAL_SIZE"
fi
exit 0
#
# Local variables:
# tab-width: 4
# c-basic-offset: 4
# End:
# vim600: expandtab sw=4 ts=4 fdm=marker
# vim<600: expandtab sw=4 ts=4
#