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#!/bin/bash
# Contains code derived from devtools' "makechrootpkg"
# Copyright 2011-2012 The Arch Linux Development Team
# Copyright 2012 Luke Shumaker
#
# 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; version 2 of the License.
#
# 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.
sync() {
if [[ $CHROOTCOPY = root ]]; then
error "Cannot sync the root copy with itself"
exit 1
fi
lock_open_read 8 "$rootdir" \
"Waiting for existing lock on \`$rootdir' to be released"
stat_busy 'Creating clean working copy'
local use_rsync=false
if type -P btrfs >/dev/null; then
[[ -d $copydir ]] && btrfs subvolume delete "$copydir" &>/dev/null
btrfs subvolume snapshot "$rootdir" "$copydir" &>/dev/null || use_rsync=true
else
use_rsync=true
fi
if $use_rsync; then
mkdir -p "$copydir"
rsync -a --delete -q -W -x "$rootdir/" "$copydir"
fi
stat_done
lock_close 8
}
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