[WIP] The next-gen virtualenv (rewrite)

.coveragerc

@@ -0,0 +1,27 @@
+[coverage:report]
+skip_covered = False
+show_missing = True
+exclude_lines =
+    \#\s*pragma: no cover
+    ^\s*raise AssertionError\b
+    ^\s*raise NotImplementedError\b
+    ^\s*raise$
+    ^if __name__ == ['"]__main__['"]:$
+omit =
+    # site.py is ran before the coverage can be enabled, no way to measure coverage on this
+    src/virtualenv/interpreters/create/impl/cpython/site.py
+
+[coverage:paths]
+source =
+    src
+    .tox/*/lib/python*/site-packages
+    .tox/pypy*/site-packages
+    .tox\*\Lib\site-packages\
+    */src
+    *\src
+
+[coverage:run]
+branch = false
+parallel = true
+source =
+    ${_COVERAGE_SRC}

.gitignore

@@ -19,3 +19,7 @@ dist
 .vscode
 
 /docs/_draft.rst
+/pip-wheel-metadata
+/src/virtualenv/version.py
+/src/virtualenv/out
+/*env*

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
 -   repo: https://github.com/ambv/black
-    rev: 19.3b0
+    rev: 19.10b0
     hooks:
     -   id: black
         args: [--safe]
@@ -15,13 +15,13 @@ repos:
     rev: v1.9.3
     hooks:
     -   id: seed-isort-config
-        args: [--application-directories, '.']
+        args: [--application-directories, '.:src']
 -   repo: https://github.com/pre-commit/mirrors-isort
     rev: v4.3.21
     hooks:
     -   id: isort
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v2.3.0
+    rev: v2.4.0
     hooks:
     -   id: trailing-whitespace
     -   id: end-of-file-fixer
@@ -34,10 +34,10 @@ repos:
         additional_dependencies: ["flake8-bugbear == 19.8.0"]
         language_version: python3.7
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v1.24.1
+    rev: v1.25.1
     hooks:
     -   id: pyupgrade
 -   repo: https://github.com/pre-commit/pygrep-hooks
-    rev: v1.4.1
+    rev: v1.4.2
     hooks:
     -   id: rst-backticks

MANIFEST.in

@@ -1,22 +1,12 @@
-include virtualenv.py
-recursive-include virtualenv_support *.whl
-recursive-include virtualenv_embedded *
-include virtualenv_support/__init__.py
-include pyproject.toml
-
-include AUTHORS.txt
-include LICENSE.txt
-
-recursive-include tests *
-recursive-include docs *
-include tasks/*
-include tox.ini
+# setuptools-scm by default adds all SCM tracked files, we prune the following maintenance related ones (sdist only)
+exclude .gitattributes
+exclude .gitignore
+exclude .github/*
 
-exclude readthedocs.yml
-exclude CONTRIBUTING.rst
-exclude .pre-commit-config.yaml
-exclude azure-run-tox-env.yml
 exclude azure-pipelines.yml
-exclude .gitignore
-exclude .gitattributes
-recursive-exclude .github *
+exclude CONTRIBUTING.rst
+exclude readthedocs.yml
+exclude MANIFEST.in
+
+exclude tasks/release.py
+exclude tasks/upgrade_wheels.py

azure-pipelines.yml

@@ -19,19 +19,17 @@ pr:
     - master
 
 variables:
-  PYTEST_ADDOPTS: "-v -v -ra --showlocals"
+  PYTEST_ADDOPTS: "-v -v -ra --showlocals --durations=15"
   PYTEST_XDIST_PROC_NR: 'auto'
   CI_RUN: 'yes'
+  UPGRADE_ADVISORY: 'yes'
 
 jobs:
 - template: run-tox-env.yml@tox
   parameters:
     jobs:
-      fix_lint: null
-      embed: null
-      cross_python2: null
-      cross_python3: null
-      docs: null
+      py38:
+        image: [linux]
       py37:
         image: [linux, windows, macOs]
       py36:
@@ -42,8 +40,15 @@ jobs:
         image: [linux, windows, macOs]
       py27:
         image: [linux, windows, macOs]
+      fix_lint:
+        image: [linux, windows]
+      docs:
+        image: [linux, windows]
+      package_readme:
+        image: [linux, windows]
+      upgrade:
+        image: [linux, windows]
       dev: null
-      package_readme: null
     before:
       - script: 'sudo apt-get update -y && sudo apt-get install fish csh'
         condition: and(succeeded(), eq(variables['image_name'], 'linux'), in(variables['TOXENV'], 'py37', 'py36', 'py35', 'py34', 'py27'))

docs/conf.py

@@ -12,6 +12,7 @@
 source_suffix = ".rst"
 master_doc = "index"
 project = "virtualenv"
+# noinspection PyShadowingBuiltins
 copyright = "2007-2018, Ian Bicking, The Open Planning Project, PyPA"
 
 ROOT_SRC_TREE_DIR = Path(__file__).parents[1]

pyproject.toml

@@ -1,7 +1,8 @@
 [build-system]
 requires = [
-    "setuptools >= 40.6.3",
+    "setuptools >= 40.0.0",
     "wheel >= 0.29.0",
+    "setuptools-scm >= 2, < 4",
 ]
 build-backend = 'setuptools.build_meta'
 

setup.cfg

@@ -1,81 +1,80 @@
 [metadata]
 name = virtualenv
+version = attr: virtualenv.__version__
 description = Virtual Python Environment builder
 long_description = file: README.rst
 keywords = virtual, environments, isolated
 maintainer = Bernat Gabor
-author = Ian Bicking
+author = Bernat Gabor
 maintainer-email = [email protected]
-author-email = ianb@colorstudy.com
+author-email = gaborjbernat@gmail.com
 url = https://virtualenv.pypa.io/
 project_urls =
     Source=https://github.com/pypa/virtualenv
     Tracker=https://github.com/pypa/virtualenv/issues
-classifiers = Development Status :: 5 - Production/Stable
-              Intended Audience :: Developers
-              License :: OSI Approved :: MIT License
-              Operating System :: POSIX
-              Operating System :: Microsoft :: Windows
-              Operating System :: MacOS :: MacOS X
-              Topic :: Software Development :: Testing
-              Topic :: Software Development :: Libraries
-              Topic :: Utilities
-              Programming Language :: Python :: 2
-              Programming Language :: Python :: 2.7
-              Programming Language :: Python :: 3
-              Programming Language :: Python :: 3.4
-              Programming Language :: Python :: 3.5
-              Programming Language :: Python :: 3.6
-              Programming Language :: Python :: 3.7
+classifiers =
+    Development Status :: 3 - Alpha
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.5
+    Programming Language :: Python :: 3.4
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 2
+    Programming Language :: Python :: 2.7
+    Intended Audience :: Developers
+    License :: OSI Approved :: MIT License
+    Operating System :: POSIX
+    Operating System :: Microsoft :: Windows
+    Operating System :: MacOS :: MacOS X
+    Topic :: Software Development :: Testing
+    Topic :: Software Development :: Libraries
+    Topic :: Utilities
 platforms = any
 license = MIT
 license_file = LICENSE.txt
 
 [options]
 packages = find:
-include_package_data = True
+package_dir =
+    =src
 zip_safe = True
 python_requires = >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*
+install_requires =
+    six >= 1.12.0, < 2
+    attrs
+    pathlib2 >= 2.3.3, < 3
+    appdirs >= 1.4.3
+[options.packages.find]
+where = src
 
 [options.extras_require]
-testing = mock;python_version<"3.3"
-          pytest >= 4.0.0, <5
-          coverage >= 4.5.0, <5
-          pytest-timeout >= 1.3.0, <2
-          xonsh; python_version>="3.5"
-          six >= 1.10.0, < 2
-          pytest-xdist
-          pytest-localserver
-          pypiserver
-docs = sphinx >= 1.8.0, < 2
-       towncrier >= 18.5.0
-       sphinx_rtd_theme >= 0.4.2, < 1
-
-[options.packages.find]
-where = .
+testing =
+    pytest >= 4.0.0, <6
+    coverage >= 4.5.0, < 5
+    pytest-mock
+docs =
+    sphinx >= 2.0.0, < 3
+    towncrier >= 18.5.0
+    sphinx_rtd_theme >= 0.4.2, < 1
 
 [options.package_data]
-virtualenv_support = *.whl
+virtualenv.seed.wheels = *.whl
 
 [options.entry_points]
-console_scripts = virtualenv=virtualenv:main
+console_scripts =
+    virtualenv=virtualenv.__main__:run
 
 [sdist]
 formats = gztar
 
 [bdist_wheel]
 universal = true
 
-[coverage:run]
-branch = false
-parallel = true
-
-[coverage:report]
-skip_covered = True
-show_missing = True
-
-[coverage:paths]
-source = .
-         .tox/*/*/site-packages
-         .tox/*/*/*/site-packages
-         */s
+[tool:pytest]
+markers =
+    bash
+    csh
+    fish
+    pwsh
+    xonsh

setup.py

@@ -1,16 +1,17 @@
-import os
-import re
+# -*- coding: utf-8 -*-
+import textwrap
 
 from setuptools import setup
 
-
-def get_version():
-    with open(os.path.join(os.path.dirname(os.path.abspath(__file__)), "virtualenv.py")) as file_handler:
-        version_file = file_handler.read()
-    version_match = re.search(r"^__version__ = ['\"]([^'\"]*)['\"]", version_file, re.M)
-    if version_match:
-        return version_match.group(1)
-    raise RuntimeError("Unable to find version string.")
-
-
-setup(version=get_version(), py_modules=["virtualenv"], setup_requires=["setuptools >= 40.6.3"])
+setup(
+    use_scm_version={
+        "write_to": "src/virtualenv/version.py",
+        "write_to_template": textwrap.dedent(
+            """
+             # coding: utf-8
+             from __future__ import unicode_literals
+             __version__ = {version!r}
+             """
+        ).lstrip(),
+    }
+)

src/virtualenv/__init__.py

@@ -0,0 +1,5 @@
+from __future__ import absolute_import, unicode_literals
+
+from .version import __version__
+
+__all__ = ("__version__", "run")

src/virtualenv/__main__.py

@@ -0,0 +1,22 @@
+from __future__ import absolute_import, print_function, unicode_literals
+
+import sys
+
+from virtualenv.error import ProcessCallFailed
+from virtualenv.run import run_via_cli
+
+
+def run(args=None):
+    if args is None:
+        args = sys.argv[1:]
+    try:
+        run_via_cli(args)
+    except ProcessCallFailed as exception:
+        print("subprocess call failed for {}".format(exception.cmd))
+        print(exception.out, file=sys.stdout, end="")
+        print(exception.err, file=sys.stderr, end="")
+        raise SystemExit(exception.code)
+
+
+if __name__ == "__main__":
+    run()

src/virtualenv/config/__init__.py

@@ -0,0 +1,6 @@
+from __future__ import absolute_import, unicode_literals
+
+from .cli import parse_base_cli, parse_core_cli
+from .options import BaseOption, RunOption
+
+__all__ = ("parse_core_cli", "RunOption", "BaseOption", "parse_base_cli")