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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
"""Generate build-details.json (see PEP 739)."""
# Script initially imported from:
# https://github.com/FFY00/python-instrospection/blob/main/python_introspection/scripts/generate-build-details.py
from __future__ import annotations
import argparse
import collections
import importlib.machinery
import json
import os
import sys
import sysconfig
TYPE_CHECKING = False
if TYPE_CHECKING:
from typing import Any
def version_info_to_dict(obj: sys._version_info) -> dict[str, Any]:
field_names = ('major', 'minor', 'micro', 'releaselevel', 'serial')
return {field: getattr(obj, field) for field in field_names}
def get_dict_key(container: dict[str, Any], key: str) -> dict[str, Any]:
for part in key.split('.'):
container = container[part]
return container
def generate_data(schema_version: str) -> collections.defaultdict[str, Any]:
"""Generate the build-details.json data (PEP 739).
:param schema_version: The schema version of the data we want to generate.
"""
if schema_version != '1.0':
raise ValueError(f'Unsupported schema_version: {schema_version}')
data: collections.defaultdict[str, Any] = collections.defaultdict(
lambda: collections.defaultdict(dict),
)
data['schema_version'] = schema_version
data['base_prefix'] = sysconfig.get_config_var('installed_base')
#data['base_interpreter'] = sys._base_executable
data['base_interpreter'] = os.path.join(
sysconfig.get_path('scripts'),
'python' + sysconfig.get_config_var('VERSION'),
)
data['platform'] = sysconfig.get_platform()
data['language']['version'] = sysconfig.get_python_version()
data['language']['version_info'] = version_info_to_dict(sys.version_info)
data['implementation'] = vars(sys.implementation)
data['implementation']['version'] = version_info_to_dict(sys.implementation.version)
# Fix cross-compilation
if '_multiarch' in data['implementation']:
data['implementation']['_multiarch'] = sysconfig.get_config_var('MULTIARCH')
data['abi']['flags'] = list(sys.abiflags)
data['suffixes']['source'] = importlib.machinery.SOURCE_SUFFIXES
data['suffixes']['bytecode'] = importlib.machinery.BYTECODE_SUFFIXES
#data['suffixes']['optimized_bytecode'] = importlib.machinery.OPTIMIZED_BYTECODE_SUFFIXES
#data['suffixes']['debug_bytecode'] = importlib.machinery.DEBUG_BYTECODE_SUFFIXES
data['suffixes']['extensions'] = importlib.machinery.EXTENSION_SUFFIXES
LIBDIR = sysconfig.get_config_var('LIBDIR')
LDLIBRARY = sysconfig.get_config_var('LDLIBRARY')
LIBRARY = sysconfig.get_config_var('LIBRARY')
PY3LIBRARY = sysconfig.get_config_var('PY3LIBRARY')
LIBPYTHON = sysconfig.get_config_var('LIBPYTHON')
LIBPC = sysconfig.get_config_var('LIBPC')
INCLUDEDIR = sysconfig.get_config_var('INCLUDEDIR')
if os.name == 'posix':
# On POSIX, LIBRARY is always the static library, while LDLIBRARY is the
# dynamic library if enabled, otherwise it's the static library.
# If LIBRARY != LDLIBRARY, support for the dynamic library is enabled.
has_dynamic_library = LDLIBRARY != LIBRARY
has_static_library = sysconfig.get_config_var('STATIC_LIBPYTHON')
elif os.name == 'nt':
# Windows can only use a dynamic library or a static library.
# If it's using a dynamic library, sys.dllhandle will be set.
# Static builds on Windows are not really well supported, though.
# More context: https://github.com/python/cpython/issues/110234
has_dynamic_library = hasattr(sys, 'dllhandle')
has_static_library = not has_dynamic_library
else:
raise NotADirectoryError(f'Unknown platform: {os.name}')
# On POSIX, EXT_SUFFIX is set regardless if extension modules are supported
# or not, and on Windows older versions of CPython only set EXT_SUFFIX when
# extension modules are supported, but newer versions of CPython set it
# regardless.
#
# We only want to set abi.extension_suffix and stable_abi_suffix if
# extension modules are supported.
if has_dynamic_library:
data['abi']['extension_suffix'] = sysconfig.get_config_var('EXT_SUFFIX')
# EXTENSION_SUFFIXES has been constant for a long time, and currently we
# don't have a better information source to find the stable ABI suffix.
for suffix in importlib.machinery.EXTENSION_SUFFIXES:
if suffix.startswith('.abi'):
data['abi']['stable_abi_suffix'] = suffix
break
data['libpython']['dynamic'] = os.path.join(LIBDIR, LDLIBRARY)
# FIXME: Not sure if windows has a different dll for the stable ABI, and
# even if it does, currently we don't have a way to get its name.
if PY3LIBRARY:
data['libpython']['dynamic_stableabi'] = os.path.join(LIBDIR, PY3LIBRARY)
# Os POSIX, this is defined by the LIBPYTHON Makefile variable not being
# empty. On Windows, don't link extensions — LIBPYTHON won't be defined,
data['libpython']['link_extensions'] = bool(LIBPYTHON)
if has_static_library:
data['libpython']['static'] = os.path.join(LIBDIR, LIBRARY)
data['c_api']['headers'] = INCLUDEDIR
if LIBPC:
data['c_api']['pkgconfig_path'] = LIBPC
return data
def make_paths_relative(data: dict[str, Any], config_path: str | None = None) -> None:
# Make base_prefix relative to the config_path directory
if config_path:
data['base_prefix'] = os.path.relpath(data['base_prefix'], os.path.dirname(config_path))
# Update path values to make them relative to base_prefix
PATH_KEYS = [
'base_interpreter',
'libpython.dynamic',
'libpython.dynamic_stableabi',
'libpython.static',
'c_api.headers',
'c_api.pkgconfig_path',
]
for entry in PATH_KEYS:
parent, _, child = entry.rpartition('.')
# Get the key container object
try:
container = data
for part in parent.split('.'):
container = container[part]
current_path = container[child]
except KeyError:
continue
# Get the relative path
new_path = os.path.relpath(current_path, data['base_prefix'])
# Join '.' so that the path is formated as './path' instead of 'path'
new_path = os.path.join('.', new_path)
container[child] = new_path
def main() -> None:
parser = argparse.ArgumentParser(exit_on_error=False)
parser.add_argument('location')
parser.add_argument(
'--schema-version',
default='1.0',
help='Schema version of the build-details.json file to generate.',
)
parser.add_argument(
'--relative-paths',
action='store_true',
help='Whether to specify paths as absolute, or as relative paths to ``base_prefix``.',
)
parser.add_argument(
'--config-file-path',
default=None,
help='If specified, ``base_prefix`` will be set as a relative path to the given config file path.',
)
args = parser.parse_args()
data = generate_data(args.schema_version)
if args.relative_paths:
make_paths_relative(data, args.config_file_path)
json_output = json.dumps(data, indent=2)
with open(args.location, 'w') as f:
print(json_output, file=f)
if __name__ == '__main__':
main()
|
