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Edit File : generate_metadata.py \| Size : 4.59 KB
"""Metadata generation logic for source distributions. """ import logging import os from pip._internal.exceptions import InstallationError from pip._internal.utils.misc import ensure_dir from pip._internal.utils.setuptools_build import make_setuptools_shim_args from pip._internal.utils.subprocess import call_subprocess from pip._internal.utils.typing import MYPY_CHECK_RUNNING from pip._internal.vcs import vcs if MYPY_CHECK_RUNNING: from typing import Callable, List from pip._internal.req.req_install import InstallRequirement logger = logging.getLogger(__name__) def get_metadata_generator(install_req): # type: (InstallRequirement) -> Callable[[InstallRequirement], str] """Return a callable metadata generator for this InstallRequirement. A metadata generator takes an InstallRequirement (install_req) as an input, generates metadata via the appropriate process for that install_req and returns the generated metadata directory. """ if not install_req.use_pep517: return _generate_metadata_legacy return _generate_metadata def _find_egg_info(source_directory, is_editable): # type: (str, bool) -> str """Find an .egg-info in `source_directory`, based on `is_editable`. """ def looks_like_virtual_env(path): # type: (str) -> bool return ( os.path.lexists(os.path.join(path, 'bin', 'python')) or os.path.exists(os.path.join(path, 'Scripts', 'Python.exe')) ) def locate_editable_egg_info(base): # type: (str) -> List[str] candidates = [] # type: List[str] for root, dirs, files in os.walk(base): for dir_ in vcs.dirnames: if dir_ in dirs: dirs.remove(dir_) # Iterate over a copy of ``dirs``, since mutating # a list while iterating over it can cause trouble. # (See https://github.com/pypa/pip/pull/462.) for dir_ in list(dirs): if looks_like_virtual_env(os.path.join(root, dir_)): dirs.remove(dir_) # Also don't search through tests elif dir_ == 'test' or dir_ == 'tests': dirs.remove(dir_) candidates.extend(os.path.join(root, dir_) for dir_ in dirs) return [f for f in candidates if f.endswith('.egg-info')] def depth_of_directory(dir_): # type: (str) -> int return ( dir_.count(os.path.sep) + (os.path.altsep and dir_.count(os.path.altsep) or 0) ) base = source_directory if is_editable: filenames = locate_editable_egg_info(base) else: base = os.path.join(base, 'pip-egg-info') filenames = os.listdir(base) if not filenames: raise InstallationError( "Files/directories not found in %s" % base ) # If we have more than one match, we pick the toplevel one. This # can easily be the case if there is a dist folder which contains # an extracted tarball for testing purposes. if len(filenames) > 1: filenames.sort(key=depth_of_directory) return os.path.join(base, filenames[0]) def _generate_metadata_legacy(install_req): # type: (InstallRequirement) -> str req_details_str = install_req.name or "from {}".format(install_req.link) logger.debug( 'Running setup.py (path:%s) egg_info for package %s', install_req.setup_py_path, req_details_str, ) # Compose arguments for subprocess call base_cmd = make_setuptools_shim_args(install_req.setup_py_path) if install_req.isolated: base_cmd += ["--no-user-cfg"] # For non-editable installs, don't put the .egg-info files at the root, # to avoid confusion due to the source code being considered an installed # egg. egg_base_option = [] # type: List[str] if not install_req.editable: egg_info_dir = os.path.join( install_req.unpacked_source_directory, 'pip-egg-info', ) egg_base_option = ['--egg-base', egg_info_dir] # setuptools complains if the target directory does not exist. ensure_dir(egg_info_dir) with install_req.build_env: call_subprocess( base_cmd + ["egg_info"] + egg_base_option, cwd=install_req.unpacked_source_directory, command_desc='python setup.py egg_info', ) # Return the .egg-info directory. return _find_egg_info( install_req.unpacked_source_directory, install_req.editable, ) def _generate_metadata(install_req): # type: (InstallRequirement) -> str return install_req.prepare_pep517_metadata() Back

Edit File : generate_metadata.py | Size : 4.59 KB

"""Metadata generation logic for source distributions.
"""

import logging
import os

from pip._internal.exceptions import InstallationError
from pip._internal.utils.misc import ensure_dir
from pip._internal.utils.setuptools_build import make_setuptools_shim_args
from pip._internal.utils.subprocess import call_subprocess
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
from pip._internal.vcs import vcs

if MYPY_CHECK_RUNNING:
    from typing import Callable, List
    from pip._internal.req.req_install import InstallRequirement

logger = logging.getLogger(__name__)

def get_metadata_generator(install_req):
    # type: (InstallRequirement) -> Callable[[InstallRequirement], str]
    """Return a callable metadata generator for this InstallRequirement.

A metadata generator takes an InstallRequirement (install_req) as an input,
    generates metadata via the appropriate process for that install_req and
    returns the generated metadata directory.
    """
    if not install_req.use_pep517:
        return _generate_metadata_legacy

return _generate_metadata

def _find_egg_info(source_directory, is_editable):
    # type: (str, bool) -> str
    """Find an .egg-info in `source_directory`, based on `is_editable`.
    """

def looks_like_virtual_env(path):
        # type: (str) -> bool
        return (
            os.path.lexists(os.path.join(path, 'bin', 'python')) or
            os.path.exists(os.path.join(path, 'Scripts', 'Python.exe'))
        )

def locate_editable_egg_info(base):
        # type: (str) -> List[str]
        candidates = []  # type: List[str]
        for root, dirs, files in os.walk(base):
            for dir_ in vcs.dirnames:
                if dir_ in dirs:
                    dirs.remove(dir_)
            # Iterate over a copy of ``dirs``, since mutating
            # a list while iterating over it can cause trouble.
            # (See https://github.com/pypa/pip/pull/462.)
            for dir_ in list(dirs):
                if looks_like_virtual_env(os.path.join(root, dir_)):
                    dirs.remove(dir_)
                # Also don't search through tests
                elif dir_ == 'test' or dir_ == 'tests':
                    dirs.remove(dir_)
            candidates.extend(os.path.join(root, dir_) for dir_ in dirs)
        return [f for f in candidates if f.endswith('.egg-info')]

def depth_of_directory(dir_):
        # type: (str) -> int
        return (
            dir_.count(os.path.sep) +
            (os.path.altsep and dir_.count(os.path.altsep) or 0)
        )

base = source_directory
    if is_editable:
        filenames = locate_editable_egg_info(base)
    else:
        base = os.path.join(base, 'pip-egg-info')
        filenames = os.listdir(base)

if not filenames:
        raise InstallationError(
            "Files/directories not found in %s" % base
        )

# If we have more than one match, we pick the toplevel one.  This
    # can easily be the case if there is a dist folder which contains
    # an extracted tarball for testing purposes.
    if len(filenames) > 1:
        filenames.sort(key=depth_of_directory)

return os.path.join(base, filenames[0])

def _generate_metadata_legacy(install_req):
    # type: (InstallRequirement) -> str
    req_details_str = install_req.name or "from {}".format(install_req.link)
    logger.debug(
        'Running setup.py (path:%s) egg_info for package %s',
        install_req.setup_py_path, req_details_str,
    )

# Compose arguments for subprocess call
    base_cmd = make_setuptools_shim_args(install_req.setup_py_path)
    if install_req.isolated:
        base_cmd += ["--no-user-cfg"]

# For non-editable installs, don't put the .egg-info files at the root,
    # to avoid confusion due to the source code being considered an installed
    # egg.
    egg_base_option = []  # type: List[str]
    if not install_req.editable:
        egg_info_dir = os.path.join(
            install_req.unpacked_source_directory, 'pip-egg-info',
        )
        egg_base_option = ['--egg-base', egg_info_dir]

# setuptools complains if the target directory does not exist.
        ensure_dir(egg_info_dir)

with install_req.build_env:
        call_subprocess(
            base_cmd + ["egg_info"] + egg_base_option,
            cwd=install_req.unpacked_source_directory,
            command_desc='python setup.py egg_info',
        )

# Return the .egg-info directory.
    return _find_egg_info(
        install_req.unpacked_source_directory,
        install_req.editable,
    )

def _generate_metadata(install_req):
    # type: (InstallRequirement) -> str
    return install_req.prepare_pep517_metadata()

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