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#!/bin/sh
# Copyright © 2005-2007 Roger Leigh <rleigh@debian.org>
#
# schroot 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.
#
# schroot 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 -e
. "$SETUP_DATA_DIR/common-data"
. "$SETUP_DATA_DIR/common-functions"
. "$SETUP_DATA_DIR/common-config"
if [ "$VERBOSE" = "verbose" ]; then
LVM_VERBOSE="-v"
fi
if [ "$CHROOT_TYPE" = "lvm-snapshot" ]; then
if [ $STAGE = "setup-start" ]; then
if [ ! "$DEVTYPE" "$CHROOT_DEVICE" ]; then
fatal "Device '$CHROOT_DEVICE' does not exist"
fi
if [ "$VERBOSE" = "verbose" ]; then
lvcreate $LVM_VERBOSE --snapshot --name "$CHROOT_LVM_SNAPSHOT_NAME" \
"$CHROOT_DEVICE" $CHROOT_LVM_SNAPSHOT_OPTIONS
else
lvcreate $LVM_VERBOSE --snapshot --name "$CHROOT_LVM_SNAPSHOT_NAME" \
"$CHROOT_DEVICE" $CHROOT_LVM_SNAPSHOT_OPTIONS > /dev/null
fi
elif [ $STAGE = "setup-stop" ]; then
if [ "$DEVTYPE" "$CHROOT_LVM_SNAPSHOT_DEVICE" ]; then
# The lock needs to be dropped immediately before
# destroying the device. There is a small race here, but
# the lock can't be dropped once the device has been
# removed.
info "Removing device lock for $CHROOT_LVM_SNAPSHOT_DEVICE, owned by pid $PID"
"$LIBEXEC_DIR/schroot-releaselock" \
--device="$CHROOT_LVM_SNAPSHOT_DEVICE" \
--pid=$PID || true
if [ "$VERBOSE" = "verbose" ]; then
lvremove $LVM_VERBOSE -f "$CHROOT_LVM_SNAPSHOT_DEVICE" || true
else
lvremove $LVM_VERBOSE -f "$CHROOT_LVM_SNAPSHOT_DEVICE" > /dev/null || true
fi
else
# The block device no longer exists, or was never created,
# for example on lvcreate failure.
warn "$CHROOT_LVM_SNAPSHOT_DEVICE does not exist (it may have been removed previously)"
fi
fi
fi
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