diff options
Diffstat (limited to 'venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/build_env.py')
-rw-r--r-- | venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/build_env.py | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/build_env.py b/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/build_env.py deleted file mode 100644 index d744cc7..0000000 --- a/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/build_env.py +++ /dev/null @@ -1,215 +0,0 @@ -"""Build Environment used for isolation during sdist building -""" - -import logging -import os -import sys -import textwrap -from collections import OrderedDict -from distutils.sysconfig import get_python_lib -from sysconfig import get_paths - -from pip._vendor.pkg_resources import Requirement, VersionConflict, WorkingSet - -from pip import __file__ as pip_location -from pip._internal.utils.misc import call_subprocess -from pip._internal.utils.temp_dir import TempDirectory -from pip._internal.utils.typing import MYPY_CHECK_RUNNING -from pip._internal.utils.ui import open_spinner - -if MYPY_CHECK_RUNNING: - from typing import Tuple, Set, Iterable, Optional, List # noqa: F401 - from pip._internal.index import PackageFinder # noqa: F401 - -logger = logging.getLogger(__name__) - - -class _Prefix: - - def __init__(self, path): - # type: (str) -> None - self.path = path - self.setup = False - self.bin_dir = get_paths( - 'nt' if os.name == 'nt' else 'posix_prefix', - vars={'base': path, 'platbase': path} - )['scripts'] - # Note: prefer distutils' sysconfig to get the - # library paths so PyPy is correctly supported. - purelib = get_python_lib(plat_specific=False, prefix=path) - platlib = get_python_lib(plat_specific=True, prefix=path) - if purelib == platlib: - self.lib_dirs = [purelib] - else: - self.lib_dirs = [purelib, platlib] - - -class BuildEnvironment(object): - """Creates and manages an isolated environment to install build deps - """ - - def __init__(self): - # type: () -> None - self._temp_dir = TempDirectory(kind="build-env") - self._temp_dir.create() - - self._prefixes = OrderedDict(( - (name, _Prefix(os.path.join(self._temp_dir.path, name))) - for name in ('normal', 'overlay') - )) - - self._bin_dirs = [] # type: List[str] - self._lib_dirs = [] # type: List[str] - for prefix in reversed(list(self._prefixes.values())): - self._bin_dirs.append(prefix.bin_dir) - self._lib_dirs.extend(prefix.lib_dirs) - - # Customize site to: - # - ensure .pth files are honored - # - prevent access to system site packages - system_sites = { - os.path.normcase(site) for site in ( - get_python_lib(plat_specific=False), - get_python_lib(plat_specific=True), - ) - } - self._site_dir = os.path.join(self._temp_dir.path, 'site') - if not os.path.exists(self._site_dir): - os.mkdir(self._site_dir) - with open(os.path.join(self._site_dir, 'sitecustomize.py'), 'w') as fp: - fp.write(textwrap.dedent( - ''' - import os, site, sys - - # First, drop system-sites related paths. - original_sys_path = sys.path[:] - known_paths = set() - for path in {system_sites!r}: - site.addsitedir(path, known_paths=known_paths) - system_paths = set( - os.path.normcase(path) - for path in sys.path[len(original_sys_path):] - ) - original_sys_path = [ - path for path in original_sys_path - if os.path.normcase(path) not in system_paths - ] - sys.path = original_sys_path - - # Second, add lib directories. - # ensuring .pth file are processed. - for path in {lib_dirs!r}: - assert not path in sys.path - site.addsitedir(path) - ''' - ).format(system_sites=system_sites, lib_dirs=self._lib_dirs)) - - def __enter__(self): - self._save_env = { - name: os.environ.get(name, None) - for name in ('PATH', 'PYTHONNOUSERSITE', 'PYTHONPATH') - } - - path = self._bin_dirs[:] - old_path = self._save_env['PATH'] - if old_path: - path.extend(old_path.split(os.pathsep)) - - pythonpath = [self._site_dir] - - os.environ.update({ - 'PATH': os.pathsep.join(path), - 'PYTHONNOUSERSITE': '1', - 'PYTHONPATH': os.pathsep.join(pythonpath), - }) - - def __exit__(self, exc_type, exc_val, exc_tb): - for varname, old_value in self._save_env.items(): - if old_value is None: - os.environ.pop(varname, None) - else: - os.environ[varname] = old_value - - def cleanup(self): - # type: () -> None - self._temp_dir.cleanup() - - def check_requirements(self, reqs): - # type: (Iterable[str]) -> Tuple[Set[Tuple[str, str]], Set[str]] - """Return 2 sets: - - conflicting requirements: set of (installed, wanted) reqs tuples - - missing requirements: set of reqs - """ - missing = set() - conflicting = set() - if reqs: - ws = WorkingSet(self._lib_dirs) - for req in reqs: - try: - if ws.find(Requirement.parse(req)) is None: - missing.add(req) - except VersionConflict as e: - conflicting.add((str(e.args[0].as_requirement()), - str(e.args[1]))) - return conflicting, missing - - def install_requirements( - self, - finder, # type: PackageFinder - requirements, # type: Iterable[str] - prefix_as_string, # type: str - message # type: Optional[str] - ): - # type: (...) -> None - prefix = self._prefixes[prefix_as_string] - assert not prefix.setup - prefix.setup = True - if not requirements: - return - args = [ - sys.executable, os.path.dirname(pip_location), 'install', - '--ignore-installed', '--no-user', '--prefix', prefix.path, - '--no-warn-script-location', - ] # type: List[str] - if logger.getEffectiveLevel() <= logging.DEBUG: - args.append('-v') - for format_control in ('no_binary', 'only_binary'): - formats = getattr(finder.format_control, format_control) - args.extend(('--' + format_control.replace('_', '-'), - ','.join(sorted(formats or {':none:'})))) - if finder.index_urls: - args.extend(['-i', finder.index_urls[0]]) - for extra_index in finder.index_urls[1:]: - args.extend(['--extra-index-url', extra_index]) - else: - args.append('--no-index') - for link in finder.find_links: - args.extend(['--find-links', link]) - for _, host, _ in finder.secure_origins: - args.extend(['--trusted-host', host]) - if finder.allow_all_prereleases: - args.append('--pre') - args.append('--') - args.extend(requirements) - with open_spinner(message) as spinner: - call_subprocess(args, show_stdout=False, spinner=spinner) - - -class NoOpBuildEnvironment(BuildEnvironment): - """A no-op drop-in replacement for BuildEnvironment - """ - - def __init__(self): - pass - - def __enter__(self): - pass - - def __exit__(self, exc_type, exc_val, exc_tb): - pass - - def cleanup(self): - pass - - def install_requirements(self, finder, requirements, prefix, message): - raise NotImplementedError() |