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
|
"""
It's possible to use multiple types of host pythons to create virtual environments and all should work:
- host installation
- invoking from a venv (if Python 3.3+)
- invoking from an old style virtualenv (<17.0.0)
- invoking from our own venv
"""
from __future__ import absolute_import, unicode_literals
import subprocess
import sys
import pytest
from virtualenv.discovery.py_info import PythonInfo
from virtualenv.info import IS_WIN
from virtualenv.run import cli_run
from virtualenv.util.path import Path
from virtualenv.util.subprocess import Popen
CURRENT = PythonInfo.current_system()
# noinspection PyUnusedLocal
def root(tmp_path_factory, session_app_data):
return CURRENT.system_executable
def venv(tmp_path_factory, session_app_data):
if CURRENT.is_venv:
return sys.executable
elif CURRENT.version_info.major == 3:
root_python = root(tmp_path_factory, session_app_data)
dest = tmp_path_factory.mktemp("venv")
process = Popen([str(root_python), "-m", "venv", "--without-pip", str(dest)])
process.communicate()
# sadly creating a virtual environment does not tell us where the executable lives in general case
# so discover using some heuristic
exe_path = CURRENT.discover_exe(prefix=str(dest)).original_executable
return exe_path
def old_virtualenv(tmp_path_factory, session_app_data):
if CURRENT.is_old_virtualenv:
return CURRENT.executable
else:
env_for_old_virtualenv = tmp_path_factory.mktemp("env-for-old-virtualenv")
result = cli_run(["--no-download", "--activators", "", str(env_for_old_virtualenv), "--no-periodic-update"])
# noinspection PyBroadException
try:
process = Popen(
[
str(result.creator.script("pip")),
"install",
"--no-index",
"--disable-pip-version-check",
str(Path(__file__).resolve().parent / "virtualenv-16.7.9-py2.py3-none-any.whl"),
"-v",
],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
)
_, __ = process.communicate()
assert not process.returncode
except Exception:
return RuntimeError("failed to install old virtualenv")
# noinspection PyBroadException
try:
old_virtualenv_at = tmp_path_factory.mktemp("old-virtualenv")
cmd = [
str(result.creator.script("virtualenv")),
str(old_virtualenv_at),
"--no-pip",
"--no-setuptools",
"--no-wheel",
]
process = Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
_, __ = process.communicate()
assert not process.returncode
if result.creator.interpreter.implementation == "PyPy" and IS_WIN:
# old virtualenv creates pypy paths wrong on windows, so have to hardcode it
return str(old_virtualenv_at / "bin" / "pypy.exe")
exe_path = CURRENT.discover_exe(session_app_data, prefix=str(old_virtualenv_at)).original_executable
return exe_path
except Exception as exception:
return RuntimeError("failed to create old virtualenv {}".format(exception))
PYTHON = {
"root": root,
"venv": venv,
"old_virtualenv": old_virtualenv,
}
@pytest.fixture(params=list(PYTHON.values()), ids=list(PYTHON.keys()), scope="session")
def python(request, tmp_path_factory, session_app_data):
result = request.param(tmp_path_factory, session_app_data)
if isinstance(result, Exception):
pytest.skip("could not resolve interpreter based on {} because {}".format(request.param.__name__, result))
if result is None:
pytest.skip("requires interpreter with {}".format(request.param.__name__))
return result
|
