1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
# Support code for building a C extension with compression code
import os
def multi_join(paths, *path_segments):
"""apply os.path.join on a list of paths"""
return [os.path.join(*(path_segments + (path,))) for path in paths]
# zstd files, structure as seen in zstd project repository:
# path relative (to this file) to the bundled library source code files
zstd_bundled_path = 'src/borg/algorithms/zstd'
zstd_sources = [
'lib/common/debug.c',
'lib/common/entropy_common.c',
'lib/common/error_private.c',
'lib/common/fse_decompress.c',
'lib/common/pool.c',
'lib/common/threading.c',
'lib/common/xxhash.c',
'lib/common/zstd_common.c',
'lib/compress/fse_compress.c',
'lib/compress/hist.c',
'lib/compress/huf_compress.c',
'lib/compress/zstd_compress.c',
'lib/compress/zstd_compress_literals.c',
'lib/compress/zstd_compress_sequences.c',
'lib/compress/zstd_compress_superblock.c',
'lib/compress/zstd_double_fast.c',
'lib/compress/zstd_fast.c',
'lib/compress/zstd_lazy.c',
'lib/compress/zstd_ldm.c',
'lib/compress/zstd_opt.c',
'lib/compress/zstdmt_compress.c',
'lib/decompress/huf_decompress.c',
'lib/decompress/zstd_ddict.c',
'lib/decompress/zstd_decompress.c',
'lib/decompress/zstd_decompress_block.c',
'lib/dictBuilder/cover.c',
'lib/dictBuilder/divsufsort.c',
'lib/dictBuilder/fastcover.c',
'lib/dictBuilder/zdict.c',
]
zstd_sources_legacy = [
'lib/deprecated/zbuff_common.c',
'lib/deprecated/zbuff_compress.c',
'lib/deprecated/zbuff_decompress.c',
'lib/legacy/zstd_v01.c',
'lib/legacy/zstd_v02.c',
'lib/legacy/zstd_v03.c',
'lib/legacy/zstd_v04.c',
'lib/legacy/zstd_v05.c',
'lib/legacy/zstd_v06.c',
'lib/legacy/zstd_v07.c',
]
zstd_includes = [
'lib',
'lib/common',
'lib/compress',
'lib/decompress',
'lib/dictBuilder',
]
zstd_includes_legacy = [
'lib/deprecated',
'lib/legacy',
]
def zstd_ext_kwargs(pc, prefer_system, system_prefix, multithreaded=False, legacy=False):
if prefer_system:
if system_prefix:
print('Detected and preferring libzstd [via BORG_LIBZSTD_PREFIX]')
return dict(include_dirs=[os.path.join(system_prefix, 'include')],
library_dirs=[os.path.join(system_prefix, 'lib')],
libraries=['zstd'])
if pc and pc.installed('libzstd', '>= 1.3.0'):
print('Detected and preferring libzstd [via pkg-config]')
return pc.parse('libzstd')
print('Using bundled ZSTD')
sources = multi_join(zstd_sources, zstd_bundled_path)
if legacy:
sources += multi_join(zstd_sources_legacy, zstd_bundled_path)
include_dirs = multi_join(zstd_includes, zstd_bundled_path)
if legacy:
include_dirs += multi_join(zstd_includes_legacy, zstd_bundled_path)
extra_compile_args = ['-DZSTDLIB_VISIBILITY=', '-DZDICTLIB_VISIBILITY=', '-DZSTDERRORLIB_VISIBILITY=', ]
# '-fvisibility=hidden' does not work, doesn't find PyInit_compress then
if legacy:
extra_compile_args += ['-DZSTD_LEGACY_SUPPORT=1', ]
if multithreaded:
extra_compile_args += ['-DZSTD_MULTITHREAD', ]
define_macros = [('BORG_USE_BUNDLED_ZSTD', 'YES')]
return dict(sources=sources, include_dirs=include_dirs,
extra_compile_args=extra_compile_args, define_macros=define_macros)
# lz4 files, structure as seen in lz4 project repository:
# path relative (to this file) to the bundled library source code files
lz4_bundled_path = 'src/borg/algorithms/lz4'
lz4_sources = [
'lib/lz4.c',
]
lz4_includes = [
'lib',
]
def lz4_ext_kwargs(pc, prefer_system, system_prefix):
if prefer_system:
if system_prefix:
print('Detected and preferring liblz4 [via BORG_LIBLZ4_PREFIX]')
return dict(include_dirs=[os.path.join(system_prefix, 'include')],
library_dirs=[os.path.join(system_prefix, 'lib')],
libraries=['lz4'])
if pc and pc.installed('liblz4', '>= 1.7.0'):
print('Detected and preferring liblz4 [via pkg-config]')
return pc.parse('liblz4')
print('Using bundled LZ4')
sources = multi_join(lz4_sources, lz4_bundled_path)
include_dirs = multi_join(lz4_includes, lz4_bundled_path)
define_macros = [('BORG_USE_BUNDLED_LZ4', 'YES')]
return dict(sources=sources, include_dirs=include_dirs, define_macros=define_macros)
|
