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##############################################################################
# Copyright (c) 2013-2018, Lawrence Livermore National Security, LLC.
# Produced at the Lawrence Livermore National Laboratory.
#
# This file is part of Spack.
# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
# LLNL-CODE-647188
#
# For details, see https://github.com/spack/spack
# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
#
# This program 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) version 2.1, February 1999.
#
# 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 terms and
# conditions of the GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser 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
##############################################################################
from spack import *
import glob
import os


class Likwid(Package):
    """Likwid is a simple to install and use toolsuite of command line
    applications for performance oriented programmers. It works for Intel and
    AMD processors on the Linux operating system. This version uses the
    perf_event backend which reduces the feature set but allows user installs.
    See https://github.com/RRZE-HPC/likwid/wiki/TutorialLikwidPerf#feature-limitations
    for information."""

    homepage = "https://github.com/RRZE-HPC/likwid"
    url      = "https://github.com/RRZE-HPC/likwid/archive/4.1.2.tar.gz"

    maintainers = ['davydden']

    version('4.3.2', '2cf00e220dfe22c8d9b6e44f7534e11d')
    version('4.3.1', 'ff28250f622185688bf5e2e0975368ea')
    version('4.3.0', '7f8f6981d7d341fce2621554323f8c8b')

    # NOTE: There is no way to use an externally provided hwloc with Likwid.
    # The reason is that the internal hwloc is patched to contain extra
    # functionality and functions are prefixed with "likwid_".

    depends_on('lua', when='@4.2.0:')

    # TODO: check
    # depends_on('gnuplot', type='run')

    depends_on('perl', type=('build', 'run'))

    supported_compilers = {'clang': 'CLANG', 'gcc': 'GCC', 'intel': 'ICC'}

    def patch(self):
        files = glob.glob('perl/*.*') + glob.glob('bench/perl/*.*')

        # Allow the scripts to find Spack's perl
        filter_file('^#!/usr/bin/perl -w', '#!/usr/bin/env perl', *files)
        filter_file('^#!/usr/bin/perl', '#!/usr/bin/env perl', *files)

    @run_before('install')
    def filter_sbang(self):
        # Filter sbang before install so Spack's sbang hook can fix it up
        files = ['perl/feedGnuplot'] + glob.glob('filters/*')

        filter_file('^#!/usr/bin/perl',
                    '#!{0}'.format(self.spec['perl'].command.path),
                    *files)

    def install(self, spec, prefix):
        if self.compiler.name not in self.supported_compilers:
            raise RuntimeError('{0} is not a supported compiler \
            to compile Likwid'.format(self.compiler.name))

        filter_file('^COMPILER .*',
                    'COMPILER = ' +
                    self.supported_compilers[self.compiler.name],
                    'config.mk')
        filter_file('^PREFIX .*',
                    'PREFIX = ' +
                    prefix,
                    'config.mk')

        # FIXME: once https://github.com/spack/spack/issues/4432 is
        # resolved, install as root by default and remove this
        filter_file('^ACCESSMODE .*',
                    'ACCESSMODE = perf_event',
                    'config.mk')
        filter_file('^BUILDFREQ .*',
                    'BUILDFREQ = false',
                    'config.mk')
        filter_file('^BUILDDAEMON .*',
                    'BUILDDAEMON = false',
                    'config.mk')

        if spec.satisfies('^lua'):
            filter_file('^#LUA_INCLUDE_DIR.*',
                        'LUA_INCLUDE_DIR = {0}'.format(
                            spec['lua'].prefix.include),
                        'config.mk')
            filter_file('^#LUA_LIB_DIR.*',
                        'LUA_LIB_DIR = {0}'.format(
                            spec['lua'].prefix.lib),
                        'config.mk')
            filter_file('^#LUA_LIB_NAME.*',
                        'LUA_LIB_NAME = lua',
                        'config.mk')
            filter_file('^#LUA_BIN.*',
                        'LUA_BIN = {0}'.format(
                            spec['lua'].prefix.bin),
                        'config.mk')

        env['PWD'] = os.getcwd()
        make()
        make('install')