mirror of https://github.com/borgbackup/borg.git
44 lines
1.4 KiB
Python
44 lines
1.4 KiB
Python
# Support code for building a C extension with lz4 files
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import os
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# lz4 files, structure as seen in lz4 project repository:
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# bundled_path: relative (to this file) path to the bundled library source code files
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bundled_path = 'src/borg/algorithms/lz4'
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lz4_sources = [
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'lib/lz4.c',
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]
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lz4_includes = [
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'lib',
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]
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def multi_join(paths, *path_segments):
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"""apply os.path.join on a list of paths"""
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return [os.path.join(*(path_segments + (path,))) for path in paths]
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def lz4_ext_kwargs(prefer_system):
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if prefer_system:
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system_prefix = os.environ.get('BORG_LIBLZ4_PREFIX')
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if system_prefix:
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print('Detected and preferring liblz4 [via BORG_LIBLZ4_PREFIX]')
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return dict(include_dirs=[os.path.join(system_prefix, 'include')],
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library_dirs=[os.path.join(system_prefix, 'lib')],
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libraries=['lz4'])
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import pkgconfig
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if pkgconfig.installed('liblz4', '>= 1.7.0'):
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print('Detected and preferring liblz4 [via pkg-config]')
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return pkgconfig.parse('liblz4')
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print('Using bundled LZ4')
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sources = multi_join(lz4_sources, bundled_path)
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include_dirs = multi_join(lz4_includes, bundled_path)
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define_macros = [('BORG_USE_BUNDLED_LZ4', 'YES')]
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return dict(sources=sources, include_dirs=include_dirs, define_macros=define_macros)
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