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Implement optional per-env lockfiles in tox setup
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‎.flake8‎

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@@ -28,6 +28,12 @@ extend-exclude =
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# Metadata of `pip wheel` cmd is autogenerated
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pip-wheel-metadata,
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# IMPORTANT: avoid using ignore option, always use extend-ignore instead
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# Completely and unconditionally ignore the following errors:
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extend-ignore =
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# Legitimate cases, no need to "fix" these violations:
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WPS326 # "Found implicit string concatenation" -- nothing bad about this
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# https://wemake-python-stylegui.de/en/latest/pages/usage/formatter.html
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#format = wemake
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@@ -43,6 +49,10 @@ per-file-ignores =
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# and subprocesses (import – S404; call – S603) in tests:
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cheroot/test/test_*.py: S101, S404, S603
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# WPS102 Found incorrect module name pattern
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# This is not a regular module but a standalone script:
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bin/pip-wrapper: WPS102
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# FIXME:
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cheroot/__init__.py: I003, WPS100, WPS412, WPS420, WPS422, WPS433
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cheroot/__main__.py: WPS130, WPS300

‎bin/pip-wrapper‎

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#! /usr/bin/env python
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"""A pip-wrapper that injects platform-specific constraints into pip."""
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from __future__ import print_function # noqa: WPS422
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import functools
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import os
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import platform
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import subprocess # noqa: S404
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import sys
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print_info = functools.partial(print, file=sys.stderr)
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def get_runtime_python_tag():
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"""Identify the Python tag of the current runtime.
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:returns: Python tag.
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"""
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python_minor_ver = sys.version_info[:2]
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python_implementation = platform.python_implementation()
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if python_implementation == 'PyPy':
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python_tag_prefix = 'py'
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else:
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python_tag_prefix = 'cp'
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# pylint: disable=possibly-unused-variable
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python_minor_ver_tag = ''.join(map(str, python_minor_ver))
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python_tag = (
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'{python_tag_prefix!s}{python_minor_ver_tag!s}'.
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format(**locals()) # noqa: WPS421
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)
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if python_tag_prefix == 'cp' and python_implementation == 'CPython':
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print_info(
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'WARNING: The chosen Python interpreter tag "{python_tag}" '
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'may not match the current '
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'Python implementation "{python_implementation}"'.
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format(**locals()), # noqa: WPS421
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)
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return python_tag
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def get_constraint_file_path(req_dir, toxenv, python_tag):
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"""Identify the constraints filename for the current environment.
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:param req_dir: Requirements directory.
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:param toxenv: tox testenv.
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:param python_tag: Python tag.
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:returns: Constraints filename for the current environment.
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"""
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sys_platform = sys.platform
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platform_machine = platform.machine()
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if toxenv in {'py', 'python'}:
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toxenv = 'py{ver}'.format(ver=python_tag[2:])
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if sys_platform == 'linux2':
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sys_platform = 'linux'
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constraint_name = (
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'tox-{toxenv}-{python_tag}-{sys_platform}-{platform_machine}'.
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format(**locals()) # noqa: WPS421
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)
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return os.path.join(req_dir, os.path.extsep.join((constraint_name, 'txt')))
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def make_pip_cmd(pip_args, constraint_file_path):
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"""Inject a lockfile constraint into the pip command if present.
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:param pip_args: pip arguments.
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:param constraint_file_path: Path to a ``constraints.txt``-compatible file.
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:returns: pip command.
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"""
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pip_cmd = [sys.executable, '-m', 'pip'] + pip_args
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if os.path.isfile(constraint_file_path):
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pip_cmd += ['--constraint', constraint_file_path]
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else:
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print_info(
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'WARNING: The expected pinned constraints file for the current env'
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'does not exist (should be "{constraint_file_path}").'.
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format(**locals()), # noqa: WPS421
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)
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return pip_cmd
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def run_cmd(cmd):
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"""Invoke a shell command after logging it.
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:param cmd: The command to invoke.
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"""
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print_info(
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'Invoking the following command: {cmd}'.
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format(cmd=' '.join(cmd)),
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)
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subprocess.check_call(cmd) # noqa: S603
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def main(argv):
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"""Invoke pip with the matching constraints file, if present.
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:param argv: List of command-line arguments.
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"""
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constraint_file_path = get_constraint_file_path(
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req_dir=argv[1],
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toxenv=argv[0],
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python_tag=get_runtime_python_tag(),
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)
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pip_cmd = make_pip_cmd(
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pip_args=argv[2:],
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constraint_file_path=constraint_file_path,
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)
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run_cmd(pip_cmd)
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if __name__ == '__main__':
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main(sys.argv[1:])

‎requirements/tox-py27-cp27-linux-x86_64.in‎

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tests.in

‎requirements/tox-py27-cp27-linux-x86_64.txt‎

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#
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# This file is autogenerated by pip-compile
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# To update, run:
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#
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# pip-compile --allow-unsafe --output-file=requirements/tox-py27-cp27-linux-x86_64.txt requirements/tox-py27-cp27-linux-x86_64.in
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#
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atomicwrites==1.4.0
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# via pytest
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attrs==21.2.0
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# via pytest
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backports.functools-lru-cache==1.6.4
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# via
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# jaraco.functools
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# wcwidth
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certifi==2021.10.8
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# via requests
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cffi==1.15.0
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# via cryptography
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chardet==4.0.0
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# via
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# -r requirements/tox-py27-cp27-linux-x86_64.in
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# requests
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colorama==0.4.4
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# via pytest-watch
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configparser==4.0.2
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# via importlib-metadata
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contextlib2==0.6.0.post1
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# via
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# importlib-metadata
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# importlib-resources
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# jaraco.context
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# yg.lockfile
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# zipp
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coverage[toml]==5.5 ; python_version < "3.6" and python_version != "3.4"
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# via
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# -r requirements/tox-py27-cp27-linux-x86_64.in
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# pytest-cov
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cryptography==3.3.2
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# via
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# pyopenssl
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# trustme
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docopt==0.6.2
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# via pytest-watch
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enum34==1.1.10
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# via cryptography
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execnet==1.9.0
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# via pytest-xdist
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funcsigs==1.0.2
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# via
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# mock
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# pytest
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futures==3.3.0 ; python_version == "2.7"
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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idna==2.10
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# via
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# requests
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# trustme
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importlib-metadata==2.1.2
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# via
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# pluggy
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# pytest
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importlib-resources==3.3.1
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# via jaraco.text
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ipaddress==1.0.23
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# via
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# cryptography
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# trustme
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jaraco.apt==2.0
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# via jaraco.context
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jaraco.context==2.0
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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jaraco.functools==2.0
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# via
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# jaraco.text
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# tempora
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# yg.lockfile
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jaraco.text==3.2.0
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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mock==3.0.5
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# via pytest-mock
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more-itertools==5.0.0
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# via
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# jaraco.functools
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# pytest
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packaging==20.9
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# via
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# pytest
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# pytest-sugar
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pathlib2==2.3.6
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# via
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# importlib-metadata
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# importlib-resources
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# pytest
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pathtools==0.1.2
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# via watchdog
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pluggy==0.13.1
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# via pytest
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portend==2.6
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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py==1.11.0
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# via
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# pypytools
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# pytest
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# pytest-forked
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pycparser==2.21
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# via cffi
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pyopenssl==21.0.0
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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pyparsing==2.4.7
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# via packaging
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pypytools==0.6.2
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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pytest-cov==2.12.0 ; python_version != "3.4"
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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pytest-forked==1.3.0 ; sys_platform != "win32" and (python_version < "3.0" or python_version > "3.4")
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# via
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# -r requirements/tox-py27-cp27-linux-x86_64.in
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# pytest-xdist
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pytest-mock==2.0.0
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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pytest-rerunfailures==8.0 ; python_version <= "2.7"
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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pytest-sugar==0.9.4
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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pytest-watch==4.2.0
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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pytest-xdist==1.34.0
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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pytest==4.6.11
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# via
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# -r requirements/tox-py27-cp27-linux-x86_64.in
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# pytest-cov
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# pytest-forked
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# pytest-mock
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# pytest-rerunfailures
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# pytest-sugar
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# pytest-watch
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# pytest-xdist
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pytz==2021.3
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# via tempora
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requests-toolbelt==0.9.1
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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requests-unixsocket==0.2.0
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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requests==2.26.0
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# via
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# requests-toolbelt
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# requests-unixsocket
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scandir==1.10.0
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# via pathlib2
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singledispatch==3.7.0
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# via importlib-resources
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six==1.16.0
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# via
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# cryptography
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# jaraco.apt
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# jaraco.text
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# mock
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# more-itertools
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# pathlib2
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# pyopenssl
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# pytest
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# pytest-xdist
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# singledispatch
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# tempora
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tempora==1.14.1
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# via
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# portend
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# yg.lockfile
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termcolor==1.1.0
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# via pytest-sugar
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toml==0.10.2
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# via coverage
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trustme==0.9.0
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# via -r requirements/tox-py27-cp27-linux-x86_64.in
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typing==3.10.0.0
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# via importlib-resources
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urllib3==1.26.7 ; python_version != "3.4"
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# via
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# -r requirements/tox-py27-cp27-linux-x86_64.in
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# requests
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# requests-unixsocket
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watchdog==0.10.7 ; python_version < "3.6"
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# via
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# -r requirements/tox-py27-cp27-linux-x86_64.in
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# pytest-watch
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wcwidth==0.2.5
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# via pytest
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yg.lockfile==2.3
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# via jaraco.context
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zc.lockfile==2.0
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# via yg.lockfile
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zipp==1.2.0
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# via
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# importlib-metadata
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# importlib-resources
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# The following packages are considered to be unsafe in a requirements file:
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setuptools==44.1.1
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# via
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# pytest-rerunfailures
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# zc.lockfile

‎requirements/tox-py310-cp310-linux-x86_64.in‎

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tests.in

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