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# Copyright 2013-2018 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack import *
import os
class PyUdunits(PythonPackage):
"""The MetOffice cf_units Python interface to the UDUNITS-2 Library."""
homepage = "https://github.com/SciTools/cf_units"
url = "https://github.com/SciTools/cf_units/archive/v1.1.3.tar.gz"
version('1.1.3', '61ea2239c87b4c1d5d30147800a9e750')
maintainers = ['citibeth']
depends_on('py-setuptools', type='build')
depends_on('py-six', type=('build', 'run'))
depends_on('py-netcdf4', type=('build', 'run'))
depends_on('udunits2')
# See: https://github.com/SciTools/cf_units/blob/master/cf_units/etc/site.cfg.template
# udunits2_path = /path/to/libudunits2.so
# udunits2_xml_path = /path/to/udunits2.xml
site_cfg_template = """[System]
udunits2_path = %s
udunits2_xml_path = %s
"""
@run_after('install')
def configure_template(self):
spec = self.spec
cfg_templates = find(spec.prefix, ['site.cfg.template'])
if len(cfg_templates) != 1:
tty.die(
'Found %d instances of site.cfg.template, wanted 1' %
len(cfg_templates))
cfg_template = cfg_templates[0]
cfg = os.path.join(os.path.split(cfg_template)[0], 'site.cfg')
udunits2_xml_path = os.path.join(
spec['udunits2'].prefix, 'share', 'udunits', 'udunits2.xml')
with open(cfg, 'w') as fout:
fout.write(self.site_cfg_template %
(spec['udunits2'].libs, udunits2_xml_path))
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