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# Copyright 2013-2020 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)
import re
from spack import *
class Bzip2(Package, SourcewarePackage):
"""bzip2 is a freely available, patent free high-quality data
compressor. It typically compresses files to within 10% to 15%
of the best available techniques (the PPM family of statistical
compressors), whilst being around twice as fast at compression
and six times faster at decompression."""
homepage = "https://sourceware.org/bzip2/"
sourceware_mirror_path = "bzip2/bzip2-1.0.8.tar.gz"
executables = [r'^bzip2$']
version('1.0.8', sha256='ab5a03176ee106d3f0fa90e381da478ddae405918153cca248e682cd0c4a2269')
version('1.0.7', sha256='e768a87c5b1a79511499beb41500bcc4caf203726fff46a6f5f9ad27fe08ab2b')
version('1.0.6', sha256='a2848f34fcd5d6cf47def00461fcb528a0484d8edef8208d6d2e2909dc61d9cd')
variant('shared', default=True, description='Enables the build of shared libraries.')
depends_on('diffutils', type='build')
@classmethod
def determine_version(cls, exe):
output = Executable(exe)('--help', output=str, error=str)
match = re.search(r'bzip2, a block-sorting file compressor.'
' Version ([^,]+)', output)
return match.group(1) if match else None
# override default implementation
@property
def libs(self):
shared = '+shared' in self.spec
return find_libraries(
'libbz2', root=self.prefix, shared=shared, recursive=True
)
def patch(self):
# bzip2 comes with two separate Makefiles for static and dynamic builds
# Tell both to use Spack's compiler wrapper instead of GCC
filter_file(r'^CC=gcc', 'CC={0}'.format(spack_cc), 'Makefile')
filter_file(
r'^CC=gcc', 'CC={0}'.format(spack_cc), 'Makefile-libbz2_so'
)
# The Makefiles use GCC flags that are incompatible with PGI
if self.compiler.name == 'pgi':
filter_file('-Wall -Winline', '-Minform=inform', 'Makefile')
filter_file('-Wall -Winline', '-Minform=inform', 'Makefile-libbz2_so') # noqa
# Patch the link line to use RPATHs on macOS
if 'darwin' in self.spec.architecture:
v = self.spec.version
v1, v2, v3 = (v.up_to(i) for i in (1, 2, 3))
kwargs = {'ignore_absent': False, 'backup': False, 'string': True}
mf = FileFilter('Makefile-libbz2_so')
mf.filter('$(CC) -shared -Wl,-soname -Wl,libbz2.so.{0} -o libbz2.so.{1} $(OBJS)' # noqa
.format(v2, v3),
'$(CC) -dynamiclib -Wl,-install_name -Wl,@rpath/libbz2.{0}.dylib -current_version {1} -compatibility_version {2} -o libbz2.{3}.dylib $(OBJS)' # noqa
.format(v1, v2, v3, v3),
**kwargs)
mf.filter(
'$(CC) $(CFLAGS) -o bzip2-shared bzip2.c libbz2.so.{0}'.format(v3), # noqa
'$(CC) $(CFLAGS) -o bzip2-shared bzip2.c libbz2.{0}.dylib'
.format(v3), **kwargs)
mf.filter(
'rm -f libbz2.so.{0}'.format(v2),
'rm -f libbz2.{0}.dylib'.format(v2), **kwargs)
mf.filter(
'ln -s libbz2.so.{0} libbz2.so.{1}'.format(v3, v2),
'ln -s libbz2.{0}.dylib libbz2.{1}.dylib'.format(v3, v2),
**kwargs)
def install(self, spec, prefix):
# Build the dynamic library first
if '+shared' in spec:
make('-f', 'Makefile-libbz2_so')
# Build the static library and everything else
make()
make('install', 'PREFIX={0}'.format(prefix))
if '+shared' in spec:
install('bzip2-shared', join_path(prefix.bin, 'bzip2'))
v1, v2, v3 = (self.spec.version.up_to(i) for i in (1, 2, 3))
if 'darwin' in self.spec.architecture:
lib = 'libbz2.dylib'
lib1, lib2, lib3 = ('libbz2.{0}.dylib'.format(v)
for v in (v1, v2, v3))
else:
lib = 'libbz2.so'
lib1, lib2, lib3 = ('libbz2.so.{0}'.format(v)
for v in (v1, v2, v3))
install(lib3, join_path(prefix.lib, lib3))
with working_dir(prefix.lib):
for libname in (lib, lib1, lib2):
symlink(lib3, libname)
with working_dir(prefix.bin):
force_remove('bunzip2', 'bzcat')
symlink('bzip2', 'bunzip2')
symlink('bzip2', 'bzcat')
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