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#!/bin/sh
# Copyright (C) 2011-2012 Red Hat, Inc. All rights reserved.
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# get.sh: get various values from volumes
#
# USAGE:
# get pv_field PV field [pvs params]
# get vg_field VG field [vgs params]
# get lv_field LV field [lvs params]
#
# get lv_devices LV [lvs params]
# trims only leading prefix, we should not need trim trailing spaces
trim_() {
#local var=${var%"${var##*[! ]}"} # remove trailing space characters
echo ${1#"${1%%[! ]*}"} # remove leading space characters
}
pv_field() {
trim_ "$(pvs --noheadings -o $2 ${@:3} $1)"
}
vg_field() {
trim_ "$(vgs --noheadings -o $2 ${@:3} $1)"
}
lv_field() {
trim_ "$(lvs --noheadings -o $2 ${@:3} $1)"
}
lv_devices() {
lv_field $1 devices -a "${@:2}" | sed 's/([^)]*)//g; s/,/ /g'
}
unset LVM_VALGRIND
"$@"
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