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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
#!/usr/bin/env python
# Copyright (c) 2016-present, Gregory Szorc
# All rights reserved.
#
# This software may be modified and distributed under the terms
# of the BSD license. See the LICENSE file for details.
from __future__ import print_function
import os
import platform
import sys
from setuptools import setup
# Python 3.12 dropped distutils from the stdlib. Try to access it via
# setuptools.
try:
from setuptools._distutils.version import LooseVersion
except ImportError:
from distutils.version import LooseVersion
if sys.version_info[0:2] < (3, 9):
print("Python 3.9+ is required", file=sys.stderr)
sys.exit(1)
# Need change in 1.10 for ffi.from_buffer() to handle all buffer types
# (like memoryview).
# Need feature in 1.11 for ffi.gc() to declare size of objects so we avoid
# garbage collection pitfalls.
# Require 1.17 everywhere so we don't have to think about supporting older
# versions.
MINIMUM_CFFI_VERSION = "1.17"
ext_suffix = os.environ.get("SETUPTOOLS_EXT_SUFFIX")
if ext_suffix:
import sysconfig
# setuptools._distutils.command.build_ext doesn't use
# SETUPTOOLS_EXT_SUFFIX like setuptools.command.build_ext does.
# Work around the issue so that cross-compilation can work
# properly.
sysconfig.get_config_vars()["EXT_SUFFIX"] = ext_suffix
try:
# Older versions of python didn't have EXT_SUFFIX, and setuptools
# sets its own value, but since we've already set one, we don't
# want setuptools to overwrite it.
import setuptools._distutils.compat.py39 as py39compat
except ImportError:
try:
import setuptools._distutils.py39compat as py39compat
except ImportError:
pass
if py39compat:
py39compat.add_ext_suffix = lambda vars: None
try:
import cffi
# PyPy (and possibly other distros) have CFFI distributed as part of
# them.
cffi_version = LooseVersion(cffi.__version__)
if cffi_version < LooseVersion(MINIMUM_CFFI_VERSION):
print(
"CFFI %s or newer required (%s found); "
"not building CFFI backend" % (MINIMUM_CFFI_VERSION, cffi_version),
file=sys.stderr,
)
cffi = None
except ImportError:
cffi = None
sys.path.insert(0, ".")
import setup_zstd # noqa: E402
SUPPORT_LEGACY = False
SYSTEM_ZSTD = True
WARNINGS_AS_ERRORS = False
C_BACKEND = True
CFFI_BACKEND = True
RUST_BACKEND = False
if os.environ.get("ZSTD_WARNINGS_AS_ERRORS", ""):
WARNINGS_AS_ERRORS = True
# PyPy doesn't support the C backend.
if platform.python_implementation() == "PyPy":
C_BACKEND = False
if "--legacy" in sys.argv:
SUPPORT_LEGACY = True
sys.argv.remove("--legacy")
if "--system-zstd" in sys.argv:
SYSTEM_ZSTD = True
sys.argv.remove("--system-zstd")
if "--warnings-as-errors" in sys.argv:
WARNINGS_AS_ERRORS = True
sys.argv.remove("--warning-as-errors")
if "--no-c-backend" in sys.argv:
C_BACKEND = False
sys.argv.remove("--no-c-backend")
if "--no-cffi-backend" in sys.argv:
CFFI_BACKEND = False
sys.argv.remove("--no-cffi-backend")
if "--rust-backend" in sys.argv:
RUST_BACKEND = True
sys.argv.remove("--rust-backend")
# Code for obtaining the Extension instance is in its own module to
# facilitate reuse in other projects.
extensions = []
if C_BACKEND:
extensions.append(
setup_zstd.get_c_extension(
support_legacy=SUPPORT_LEGACY,
system_zstd=SYSTEM_ZSTD,
warnings_as_errors=WARNINGS_AS_ERRORS,
)
)
if RUST_BACKEND:
extensions.append(setup_zstd.get_rust_extension())
if CFFI_BACKEND and cffi:
import make_cffi
extensions.append(make_cffi.ffi.distutils_extension())
version = None
with open("c-ext/python-zstandard.h", "r") as fh:
for line in fh:
if not line.startswith("#define PYTHON_ZSTANDARD_VERSION"):
continue
version = line.split()[2][1:-1]
break
if not version:
raise Exception(
"could not resolve package version; " "this should never happen"
)
setup(
name="zstandard",
version=version,
packages=["zstandard"],
package_data={"zstandard": ["__init__.pyi", "py.typed"]},
ext_modules=extensions,
cmdclass={"build_ext": setup_zstd.RustBuildExt},
test_suite="tests",
tests_require=["hypothesis"],
)
|
