#!/usr/bin/env bash

# Copyright (C) 2007-2017 Red Hat, Inc. All rights reserved.
# Copyright (C) 2007-2008 NEC Corporation
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# 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

test_description="check namings of mirrored LV"



. lib/inittest

# ---------------------------------------------------------------------
# Utilities

lv_devices_() {
	local d
	local i
	local lv=$1
	shift
	local devices=( "$@" )
	local devs

	devs=$(get lv_devices "$lv")

	for d in $devs; do
		(echo "${devices[@]}" | grep "$d") || return 1
		for i in "${!devices[@]}"; do
			if [ "${devices[i]}" = "$d" ] ; then
				unset "devices[i]"
			fi
		done
	done

	test "${#devices[@]}" -eq 0 ||
		die "Left devices " "${devices[@]}"
}

lv_mirror_log_() {
	get lv_field "$1" mirror_log | tr -d '[]'
}

lv_convert_lv_() {
	get lv_field "$1" convert_lv | tr -d '[]'
}

# ---------------------------------------------------------------------
# Common environment setup/cleanup for each sub testcases

check_and_cleanup_lvs_() {
	lvs -a -o+devices $vg
	lvremove -ff $vg
	(dm_table | not grep $vg) || \
		die "ERROR: lvremove did leave some some mappings in DM behind!"
}

# ---------------------------------------------------------------------
# Initialize PVs and VGs

aux prepare_vg 5 80

check_and_cleanup_lvs_

# ---------------------------------------------------------------------
# basic

#COMM "init: lvcreate"

#COMM "mirror images are ${lv1}_mimage_x"
lvcreate -an -Zn -l2 --type mirror -m1 -n $lv1 $vg
lv_devices_ $vg/$lv1 ${lv1}_mimage_0 ${lv1}_mimage_1

#COMM "mirror log is ${lv1}_mlog"
test "$(lv_mirror_log_ $vg/$lv1)" = "${lv1}_mlog"

# "cleanup"
check_and_cleanup_lvs_

#COMM "mirror with name longer than 22 characters (bz221322)"
name="LVwithanamelogerthan22characters_butidontwonttocounthem"
lvcreate -an -Zn --type mirror -m1 -l2 -n $name $vg
lvs $vg/$name
check_and_cleanup_lvs_

# ---------------------------------------------------------------------
# lvrename

#COMM "init: lvrename"

#COMM "renamed mirror names: $lv1 to $lv2"
lvcreate -an -Zn -l2 --type mirror -m1 -n $lv1 $vg
lvrename $vg/$lv1 $vg/$lv2
lv_devices_ $vg/$lv2 ${lv2}_mimage_0 ${lv2}_mimage_1
lv_mirror_log_ $vg/$lv2 ${lv2}_mlog

#COMM "cleanup"
check_and_cleanup_lvs_

# ---------------------------------------------------------------------
# lvconvert

#COMM "init: lvconvert"

#COMM "converting mirror names is ${lv1}_mimagetmp_2"
lvcreate -aey -l2 --type mirror -m1 -n $lv1 $vg
# Use large enough polling interval so mirror is keeping mimagetmp
LVM_TEST_TAG="kill_me_$PREFIX" lvconvert -m+1 -i+40 -b $vg/$lv1

#
# TODO: lvmpolld is not 'preserving' -i  interval setting from
# lvconvert initiating command - so there is not much to test
# if the lvconvert is already finished at this point
# and lvmpolld cleaned metadata and refreshed DM table
#
# It' unclear if this is undocumented feature of bug.
#
if test ! -f LOCAL_LVMPOLLD ; then

for i in $(seq 1 10) ; do
	# check if background process already started
	# this is recognized by presence of LV1_mimage_2
	check lvl $vg/${lv1}_mimage_2 && break
	sleep .1
done
convlv=$(lv_convert_lv_ $vg/$lv1)
test "$convlv" = "${lv1}_mimagetmp_2"
lv_devices_ $vg/$lv1 $convlv ${lv1}_mimage_2
lv_devices_ $vg/$convlv ${lv1}_mimage_0 ${lv1}_mimage_1
lv_mirror_log_ $vg/$convlv ${lv1}_mlog
check lv_exists $vg ${lv1}_mimagetmp_2

#COMM "mirror log name after re-adding is ${lv1}_mlog"
lvconvert -f --mirrorlog core $vg/$lv1
lvconvert --mirrorlog disk $vg/$lv1
convlv=$(lv_convert_lv_ $vg/$lv1)
lv_devices_ $vg/$lv1 $convlv ${lv1}_mimage_2
lv_devices_ $vg/$convlv ${lv1}_mimage_0 ${lv1}_mimage_1
lv_mirror_log_ $vg/$convlv ${lv1}_mlog

#COMM "renamed converting mirror names: $lv1 to $lv2"
lvrename $vg/$lv1 $vg/$lv2
convlv=$(lv_convert_lv_ $vg/$lv2)
lv_devices_ $vg/$lv2 $convlv ${lv2}_mimage_2
lv_devices_ $vg/$convlv ${lv2}_mimage_0 ${lv2}_mimage_1
lv_mirror_log_ $vg/$convlv ${lv2}_mlog
fi  # ! -f LOCAL_LVMPOLLD

#COMM "cleanup"
check_and_cleanup_lvs_

# Temporary mirror log should have "_mlogtmp_<n>" suffix
# but currently lvconvert doesn't have an option to add the log.
# If such feature is added in future, a test for that should
# be added.

# ---------------------------------------------------------------------