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#!/bin/sh
# Copyright 2012-2014 Lars Wirzenius
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
set -eu
if [ "$#" != 1 ]
then
echo "usage: see source" 1>&2
exit 1
fi
N="$1"
tempdir="$(mktemp -d)"
echo "Temporary directory: $tempdir"
cat <<EOF > "$tempdir/conf"
[config]
repository = $tempdir/repo
root = $tempdir/data
log = $tempdir/obnam.log
trace = larch
checkpoint = 1m
lock-timeout = 1
log-keep = 16
# log-level = debug
trace = larch, obnamlib
EOF
# Do a minimal backup to make sure the repository works at least once,
# without the crash-limit option
mkdir "$tempdir/data"
./obnam backup --no-default-config --config "$tempdir/conf"
genbackupdata --create=100m "$tempdir/data"
echo "crash-limit = $N" >> "$tempdir/conf"
while true
do
# There's no need to delete this file because the first Exception message
# that appears in the file will terminate the test.
# rm -f "$tempdir/obnam.log"
echo "Trying backup with at most $N writes to repository"
./obnam force-lock --no-default-config --config "$tempdir/conf" \
2>/dev/null
if ./obnam backup --no-default-config --config "$tempdir/conf" 2>/dev/null
then
echo "Backup finished ok, done"
break
fi
if ! grep -q '^Exception: Crashing as requested' "$tempdir/obnam.log"
then
echo "Backup terminated because of unrequested crash" 1>&2
exit 1
fi
# ./obnam fsck --no-default-config --config "$tempdir/conf" || true
done
rm -rf "$tempdir"
echo "OK"
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