diff options
Diffstat (limited to 'venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/pep517/envbuild.py')
| -rw-r--r-- | venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/pep517/envbuild.py | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/pep517/envbuild.py b/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/pep517/envbuild.py deleted file mode 100644 index f7ac5f4..0000000 --- a/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/pep517/envbuild.py +++ /dev/null @@ -1,158 +0,0 @@ -"""Build wheels/sdists by installing build deps to a temporary environment. -""" - -import os -import logging -from pip._vendor import pytoml -import shutil -from subprocess import check_call -import sys -from sysconfig import get_paths -from tempfile import mkdtemp - -from .wrappers import Pep517HookCaller - -log = logging.getLogger(__name__) - - -def _load_pyproject(source_dir): - with open(os.path.join(source_dir, 'pyproject.toml')) as f: - pyproject_data = pytoml.load(f) - buildsys = pyproject_data['build-system'] - return buildsys['requires'], buildsys['build-backend'] - - -class BuildEnvironment(object): - """Context manager to install build deps in a simple temporary environment - - Based on code I wrote for pip, which is MIT licensed. - """ - # Copyright (c) 2008-2016 The pip developers (see AUTHORS.txt file) - # - # Permission is hereby granted, free of charge, to any person obtaining - # a copy of this software and associated documentation files (the - # "Software"), to deal in the Software without restriction, including - # without limitation the rights to use, copy, modify, merge, publish, - # distribute, sublicense, and/or sell copies of the Software, and to - # permit persons to whom the Software is furnished to do so, subject to - # the following conditions: - # - # The above copyright notice and this permission notice shall be - # included in all copies or substantial portions of the Software. - # - # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE - # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION - # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - - path = None - - def __init__(self, cleanup=True): - self._cleanup = cleanup - - def __enter__(self): - self.path = mkdtemp(prefix='pep517-build-env-') - log.info('Temporary build environment: %s', self.path) - - self.save_path = os.environ.get('PATH', None) - self.save_pythonpath = os.environ.get('PYTHONPATH', None) - - install_scheme = 'nt' if (os.name == 'nt') else 'posix_prefix' - install_dirs = get_paths(install_scheme, vars={ - 'base': self.path, - 'platbase': self.path, - }) - - scripts = install_dirs['scripts'] - if self.save_path: - os.environ['PATH'] = scripts + os.pathsep + self.save_path - else: - os.environ['PATH'] = scripts + os.pathsep + os.defpath - - if install_dirs['purelib'] == install_dirs['platlib']: - lib_dirs = install_dirs['purelib'] - else: - lib_dirs = install_dirs['purelib'] + os.pathsep + \ - install_dirs['platlib'] - if self.save_pythonpath: - os.environ['PYTHONPATH'] = lib_dirs + os.pathsep + \ - self.save_pythonpath - else: - os.environ['PYTHONPATH'] = lib_dirs - - return self - - def pip_install(self, reqs): - """Install dependencies into this env by calling pip in a subprocess""" - if not reqs: - return - log.info('Calling pip to install %s', reqs) - check_call([ - sys.executable, '-m', 'pip', 'install', '--ignore-installed', - '--prefix', self.path] + list(reqs)) - - def __exit__(self, exc_type, exc_val, exc_tb): - needs_cleanup = ( - self._cleanup and - self.path is not None and - os.path.isdir(self.path) - ) - if needs_cleanup: - shutil.rmtree(self.path) - - if self.save_path is None: - os.environ.pop('PATH', None) - else: - os.environ['PATH'] = self.save_path - - if self.save_pythonpath is None: - os.environ.pop('PYTHONPATH', None) - else: - os.environ['PYTHONPATH'] = self.save_pythonpath - - -def build_wheel(source_dir, wheel_dir, config_settings=None): - """Build a wheel from a source directory using PEP 517 hooks. - - :param str source_dir: Source directory containing pyproject.toml - :param str wheel_dir: Target directory to create wheel in - :param dict config_settings: Options to pass to build backend - - This is a blocking function which will run pip in a subprocess to install - build requirements. - """ - if config_settings is None: - config_settings = {} - requires, backend = _load_pyproject(source_dir) - hooks = Pep517HookCaller(source_dir, backend) - - with BuildEnvironment() as env: - env.pip_install(requires) - reqs = hooks.get_requires_for_build_wheel(config_settings) - env.pip_install(reqs) - return hooks.build_wheel(wheel_dir, config_settings) - - -def build_sdist(source_dir, sdist_dir, config_settings=None): - """Build an sdist from a source directory using PEP 517 hooks. - - :param str source_dir: Source directory containing pyproject.toml - :param str sdist_dir: Target directory to place sdist in - :param dict config_settings: Options to pass to build backend - - This is a blocking function which will run pip in a subprocess to install - build requirements. - """ - if config_settings is None: - config_settings = {} - requires, backend = _load_pyproject(source_dir) - hooks = Pep517HookCaller(source_dir, backend) - - with BuildEnvironment() as env: - env.pip_install(requires) - reqs = hooks.get_requires_for_build_sdist(config_settings) - env.pip_install(reqs) - return hooks.build_sdist(sdist_dir, config_settings) |