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#
# Copyright (C) 2010-2015 CEA/DAM
# Copyright (C) 2018 Stephane Thiell <sthiell@stanford.edu>
#
# This file is part of ClusterShell.
#
# ClusterShell is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# ClusterShell 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with ClusterShell; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""
CLI utility functions
"""
(KIBI, MEBI, GIBI, TEBI) = (1024.0, 1024.0 ** 2, 1024.0 ** 3, 1024.0 ** 4)
def human_bi_bytes_unit(value):
"""
Format numerical `value` to display it using human readable unit with
binary prefix like (KiB, MiB, GiB, ...).
"""
if value >= TEBI:
fmt = "%.2f TiB" % (value / TEBI)
elif value >= GIBI:
fmt = "%.2f GiB" % (value / GIBI)
elif value >= MEBI:
fmt = "%.2f MiB" % (value / MEBI)
elif value >= KIBI:
fmt = "%.2f KiB" % (value / KIBI)
else:
fmt = "%d B" % value
return fmt
def nodeset_cmpkey(nodeset):
"""We want larger nodeset first, then sorted by first node index."""
return -len(nodeset), nodeset[0]
def bufnodeset_cmpkey(buf):
"""Helper to get nodeset compare key from a buffer (buf, nodeset)"""
return nodeset_cmpkey(buf[1])
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