Viewing file:  req_install.py (45.59 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
from __future__ import absolute_import
import logging
import os
import re
import shutil
import sys
import tempfile
import traceback
import warnings
import zipfile
from distutils import sysconfig
from distutils.util import change_root
from email.parser import FeedParser
from pip._vendor import pkg_resources, six
from pip._vendor.packaging import specifiers
from pip._vendor.packaging.markers import Marker
from pip._vendor.packaging.requirements import InvalidRequirement, Requirement
from pip._vendor.packaging.utils import canonicalize_name
from pip._vendor.packaging.version import Version, parse as parse_version
from pip._vendor.six.moves import configparser
import pip.wheel
from pip.compat import native_str, get_stdlib, WINDOWS
from pip.download import is_url, url_to_path, path_to_url, is_archive_file
from pip.exceptions import (
InstallationError, UninstallationError,
)
from pip.locations import (
bin_py, running_under_virtualenv, PIP_DELETE_MARKER_FILENAME, bin_user,
)
from pip.utils import (
display_path, rmtree, ask_path_exists, backup_dir, is_installable_dir,
dist_in_usersite, dist_in_site_packages, egg_link_path,
call_subprocess, read_text_file, FakeFile, _make_build_dir, ensure_dir,
get_installed_version, normalize_path, dist_is_local,
)
from pip.utils.hashes import Hashes
from pip.utils.deprecation import RemovedInPip10Warning
from pip.utils.logging import indent_log
from pip.utils.setuptools_build import SETUPTOOLS_SHIM
from pip.utils.ui import open_spinner
from pip.req.req_uninstall import UninstallPathSet
from pip.vcs import vcs
from pip.wheel import move_wheel_files, Wheel
logger = logging.getLogger(__name__)
operators = specifiers.Specifier._operators.keys()
def _strip_extras(path):
m = re.match(r'^(.+)(\[[^\]]+\])$', path)
extras = None
if m:
path_no_extras = m.group(1)
extras = m.group(2)
else:
path_no_extras = path
return path_no_extras, extras
def _safe_extras(extras):
return set(pkg_resources.safe_extra(extra) for extra in extras)
class InstallRequirement(object):
def __init__(self, req, comes_from, source_dir=None, editable=False,
link=None, as_egg=False, update=True,
pycompile=True, markers=None, isolated=False, options=None,
wheel_cache=None, constraint=False):
self.extras = ()
if isinstance(req, six.string_types):
try:
req = Requirement(req)
except InvalidRequirement:
if os.path.sep in req:
add_msg = "It looks like a path. Does it exist ?"
elif '=' in req and not any(op in req for op in operators):
add_msg = "= is not a valid operator. Did you mean == ?"
else:
add_msg = traceback.format_exc()
raise InstallationError(
"Invalid requirement: '%s'\n%s" % (req, add_msg))
self.extras = _safe_extras(req.extras)
self.req = req
self.comes_from = comes_from
self.constraint = constraint
self.source_dir = source_dir
self.editable = editable
self._wheel_cache = wheel_cache
self.link = self.original_link = link
self.as_egg = as_egg
if markers is not None:
self.markers = markers
else:
self.markers = req and req.marker
self._egg_info_path = None
# This holds the pkg_resources.Distribution object if this requirement
# is already available:
self.satisfied_by = None
# This hold the pkg_resources.Distribution object if this requirement
# conflicts with another installed distribution:
self.conflicts_with = None
# Temporary build location
self._temp_build_dir = None
# Used to store the global directory where the _temp_build_dir should
# have been created. Cf _correct_build_location method.
self._ideal_build_dir = None
# True if the editable should be updated:
self.update = update
# Set to True after successful installation
self.install_succeeded = None
# UninstallPathSet of uninstalled distribution (for possible rollback)
self.uninstalled = None
# Set True if a legitimate do-nothing-on-uninstall has happened - e.g.
# system site packages, stdlib packages.
self.nothing_to_uninstall = False
self.use_user_site = False
self.target_dir = None
self.options = options if options else {}
self.pycompile = pycompile
# Set to True after successful preparation of this requirement
self.prepared = False
self.isolated = isolated
@classmethod
def from_editable(cls, editable_req, comes_from=None, default_vcs=None,
isolated=False, options=None, wheel_cache=None,
constraint=False):
from pip.index import Link
name, url, extras_override = parse_editable(
editable_req, default_vcs)
if url.startswith('file:'):
source_dir = url_to_path(url)
else:
source_dir = None
res = cls(name, comes_from, source_dir=source_dir,
editable=True,
link=Link(url),
constraint=constraint,
isolated=isolated,
options=options if options else {},
wheel_cache=wheel_cache)
if extras_override is not None:
res.extras = _safe_extras(extras_override)
return res
@classmethod
def from_line(
cls, name, comes_from=None, isolated=False, options=None,
wheel_cache=None, constraint=False):
"""Creates an InstallRequirement from a name, which might be a
requirement, directory containing 'setup.py', filename, or URL.
"""
from pip.index import Link
if is_url(name):
marker_sep = '; '
else:
marker_sep = ';'
if marker_sep in name:
name, markers = name.split(marker_sep, 1)
markers = markers.strip()
if not markers:
markers = None
else:
markers = Marker(markers)
else:
markers = None
name = name.strip()
req = None
path = os.path.normpath(os.path.abspath(name))
link = None
extras = None
if is_url(name):
link = Link(name)
else:
p, extras = _strip_extras(path)
if (os.path.isdir(p) and
(os.path.sep in name or name.startswith('.'))):
if not is_installable_dir(p):
raise InstallationError(
"Directory %r is not installable. File 'setup.py' "
"not found." % name
)
link = Link(path_to_url(p))
elif is_archive_file(p):
if not os.path.isfile(p):
logger.warning(
'Requirement %r looks like a filename, but the '
'file does not exist',
name
)
link = Link(path_to_url(p))
# it's a local file, dir, or url
if link:
# Handle relative file URLs
if link.scheme == 'file' and re.search(r'\.\./', link.url):
link = Link(
path_to_url(os.path.normpath(os.path.abspath(link.path))))
# wheel file
if link.is_wheel:
wheel = Wheel(link.filename) # can raise InvalidWheelFilename
req = "%s==%s" % (wheel.name, wheel.version)
else:
# set the req to the egg fragment. when it's not there, this
# will become an 'unnamed' requirement
req = link.egg_fragment
# a requirement specifier
else:
req = name
options = options if options else {}
res = cls(req, comes_from, link=link, markers=markers,
isolated=isolated, options=options,
wheel_cache=wheel_cache, constraint=constraint)
if extras:
res.extras = _safe_extras(
Requirement('placeholder' + extras).extras)
return res
def __str__(self):
if self.req:
s = str(self.req)
if self.link:
s += ' from %s' % self.link.url
else:
s = self.link.url if self.link else None
if self.satisfied_by is not None:
s += ' in %s' % display_path(self.satisfied_by.location)
if self.comes_from:
if isinstance(self.comes_from, six.string_types):
comes_from = self.comes_from
else:
comes_from = self.comes_from.from_path()
if comes_from:
s += ' (from %s)' % comes_from
return s
def __repr__(self):
return '<%s object: %s editable=%r>' % (
self.__class__.__name__, str(self), self.editable)
def populate_link(self, finder, upgrade, require_hashes):
"""Ensure that if a link can be found for this, that it is found.
Note that self.link may still be None - if Upgrade is False and the
requirement is already installed.
If require_hashes is True, don't use the wheel cache, because cached
wheels, always built locally, have different hashes than the files
downloaded from the index server and thus throw false hash mismatches.
Furthermore, cached wheels at present have undeterministic contents due
to file modification times.
"""
if self.link is None:
self.link = finder.find_requirement(self, upgrade)
if self._wheel_cache is not None and not require_hashes:
old_link = self.link
self.link = self._wheel_cache.cached_wheel(self.link, self.name)
if old_link != self.link:
logger.debug('Using cached wheel link: %s', self.link)
@property
def specifier(self):
return self.req.specifier
@property
def is_pinned(self):
"""Return whether I am pinned to an exact version.
For example, some-package==1.2 is pinned; some-package>1.2 is not.
"""
specifiers = self.specifier
return (len(specifiers) == 1 and
next(iter(specifiers)).operator in ('==', '==='))
def from_path(self):
if self.req is None:
return None
s = str(self.req)
if self.comes_from:
if isinstance(self.comes_from, six.string_types):
comes_from = self.comes_from
else:
comes_from = self.comes_from.from_path()
if comes_from:
s += '->' + comes_from
return s
def build_location(self, build_dir):
if self._temp_build_dir is not None:
return self._temp_build_dir
if self.req is None:
# for requirement via a path to a directory: the name of the
# package is not available yet so we create a temp directory
# Once run_egg_info will have run, we'll be able
# to fix it via _correct_build_location
# Some systems have /tmp as a symlink which confuses custom
# builds (such as numpy). Thus, we ensure that the real path
# is returned.
self._temp_build_dir = os.path.realpath(
tempfile.mkdtemp('-build', 'pip-')
)
self._ideal_build_dir = build_dir
return self._temp_build_dir
if self.editable:
name = self.name.lower()
else:
name = self.name
# FIXME: Is there a better place to create the build_dir? (hg and bzr
# need this)
if not os.path.exists(build_dir):
logger.debug('Creating directory %s', build_dir)
_make_build_dir(build_dir)
return os.path.join(build_dir, name)
def _correct_build_location(self):
"""Move self._temp_build_dir to self._ideal_build_dir/self.req.name
For some requirements (e.g. a path to a directory), the name of the
package is not available until we run egg_info, so the build_location
will return a temporary directory and store the _ideal_build_dir.
This is only called by self.egg_info_path to fix the temporary build
directory.
"""
if self.source_dir is not None:
return
assert self.req is not None
assert self._temp_build_dir
assert self._ideal_build_dir
old_location = self._temp_build_dir
self._temp_build_dir = None
new_location = self.build_location(self._ideal_build_dir)
if os.path.exists(new_location):
raise InstallationError(
'A package already exists in %s; please remove it to continue'
% display_path(new_location))
logger.debug(
'Moving package %s from %s to new location %s',
self, display_path(old_location), display_path(new_location),
)
shutil.move(old_location, new_location)
self._temp_build_dir = new_location
self._ideal_build_dir = None
self.source_dir = new_location
self._egg_info_path = None
@property
def name(self):
if self.req is None:
return None
return native_str(pkg_resources.safe_name(self.req.name))
@property
def setup_py_dir(self):
return os.path.join(
self.source_dir,
self.link and self.link.subdirectory_fragment or '')
@property
def setup_py(self):
assert self.source_dir, "No source dir for %s" % self
try:
import setuptools # noqa
except ImportError:
if get_installed_version('setuptools') is None:
add_msg = "Please install setuptools."
else:
add_msg = traceback.format_exc()
# Setuptools is not available
raise InstallationError(
"Could not import setuptools which is required to "
"install from a source distribution.\n%s" % add_msg
)
setup_py = os.path.join(self.setup_py_dir, 'setup.py')
# Python2 __file__ should not be unicode
if six.PY2 and isinstance(setup_py, six.text_type):
setup_py = setup_py.encode(sys.getfilesystemencoding())
return setup_py
def run_egg_info(self):
assert self.source_dir
if self.name:
logger.debug(
'Running setup.py (path:%s) egg_info for package %s',
self.setup_py, self.name,
)
else:
logger.debug(
'Running setup.py (path:%s) egg_info for package from %s',
self.setup_py, self.link,
)
with indent_log():
script = SETUPTOOLS_SHIM % self.setup_py
base_cmd = [sys.executable, '-c', script]
if self.isolated:
base_cmd += ["--no-user-cfg"]
egg_info_cmd = base_cmd + ['egg_info']
# We can't put the .egg-info files at the root, because then the
# source code will be mistaken for an installed egg, causing
# problems
if self.editable:
egg_base_option = []
else:
egg_info_dir = os.path.join(self.setup_py_dir, 'pip-egg-info')
ensure_dir(egg_info_dir)
egg_base_option = ['--egg-base', 'pip-egg-info']
call_subprocess(
egg_info_cmd + egg_base_option,
cwd=self.setup_py_dir,
show_stdout=False,
command_desc='python setup.py egg_info')
if not self.req:
if isinstance(parse_version(self.pkg_info()["Version"]), Version):
op = "=="
else:
op = "==="
self.req = Requirement(
"".join([
self.pkg_info()["Name"],
op,
self.pkg_info()["Version"],
])
)
self._correct_build_location()
else:
metadata_name = canonicalize_name(self.pkg_info()["Name"])
if canonicalize_name(self.req.name) != metadata_name:
logger.warning(
'Running setup.py (path:%s) egg_info for package %s '
'produced metadata for project name %s. Fix your '
'#egg=%s fragments.',
self.setup_py, self.name, metadata_name, self.name
)
self.req = Requirement(metadata_name)
def egg_info_data(self, filename):
if self.satisfied_by is not None:
if not self.satisfied_by.has_metadata(filename):
return None
return self.satisfied_by.get_metadata(filename)
assert self.source_dir
filename = self.egg_info_path(filename)
if not os.path.exists(filename):
return None
data = read_text_file(filename)
return data
def egg_info_path(self, filename):
if self._egg_info_path is None:
if self.editable:
base = self.source_dir
else:
base = os.path.join(self.setup_py_dir, 'pip-egg-info')
filenames = os.listdir(base)
if self.editable:
filenames = []
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):
# Don't search in anything that looks like a virtualenv
# environment
if (
os.path.lexists(
os.path.join(root, dir, 'bin', 'python')
) or
os.path.exists(
os.path.join(
root, dir, 'Scripts', 'Python.exe'
)
)):
dirs.remove(dir)
# Also don't search through tests
elif dir == 'test' or dir == 'tests':
dirs.remove(dir)
filenames.extend([os.path.join(root, dir)
for dir in dirs])
filenames = [f for f in filenames if f.endswith('.egg-info')]
if not filenames:
raise InstallationError(
'No files/directories in %s (from %s)' % (base, filename)
)
assert filenames, \
"No files/directories in %s (from %s)" % (base, filename)
# 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=lambda x: x.count(os.path.sep) +
(os.path.altsep and x.count(os.path.altsep) or 0)
)
self._egg_info_path = os.path.join(base, filenames[0])
return os.path.join(self._egg_info_path, filename)
def pkg_info(self):
p = FeedParser()
data = self.egg_info_data('PKG-INFO')
if not data:
logger.warning(
'No PKG-INFO file found in %s',
display_path(self.egg_info_path('PKG-INFO')),
)
p.feed(data or '')
return p.close()
_requirements_section_re = re.compile(r'\[(.*?)\]')
@property
def installed_version(self):
return get_installed_version(self.name)
def assert_source_matches_version(self):
assert self.source_dir
version = self.pkg_info()['version']
if self.req.specifier and version not in self.req.specifier:
logger.warning(
'Requested %s, but installing version %s',
self,
self.installed_version,
)
else:
logger.debug(
'Source in %s has version %s, which satisfies requirement %s',
display_path(self.source_dir),
version,
self,
)
def update_editable(self, obtain=True):
if not self.link:
logger.debug(
"Cannot update repository at %s; repository location is "
"unknown",
self.source_dir,
)
return
assert self.editable
assert self.source_dir
if self.link.scheme == 'file':
# Static paths don't get updated
return
assert '+' in self.link.url, "bad url: %r" % self.link.url
if not self.update:
return
vc_type, url = self.link.url.split('+', 1)
backend = vcs.get_backend(vc_type)
if backend:
vcs_backend = backend(self.link.url)
if obtain:
vcs_backend.obtain(self.source_dir)
else:
vcs_backend.export(self.source_dir)
else:
assert 0, (
'Unexpected version control type (in %s): %s'
% (self.link, vc_type))
def uninstall(self, auto_confirm=False):
"""
Uninstall the distribution currently satisfying this requirement.
Prompts before removing or modifying files unless
``auto_confirm`` is True.
Refuses to delete or modify files outside of ``sys.prefix`` -
thus uninstallation within a virtual environment can only
modify that virtual environment, even if the virtualenv is
linked to global site-packages.
"""
if not self.check_if_exists():
raise UninstallationError(
"Cannot uninstall requirement %s, not installed" % (self.name,)
)
dist = self.satisfied_by or self.conflicts_with
dist_path = normalize_path(dist.location)
if not dist_is_local(dist):
logger.info(
"Not uninstalling %s at %s, outside environment %s",
dist.key,
dist_path,
sys.prefix,
)
self.nothing_to_uninstall = True
return
if dist_path in get_stdlib():
logger.info(
"Not uninstalling %s at %s, as it is in the standard library.",
dist.key,
dist_path,
)
self.nothing_to_uninstall = True
return
paths_to_remove = UninstallPathSet(dist)
develop_egg_link = egg_link_path(dist)
develop_egg_link_egg_info = '{0}.egg-info'.format(
pkg_resources.to_filename(dist.project_name))
egg_info_exists = dist.egg_info and os.path.exists(dist.egg_info)
# Special case for distutils installed package
distutils_egg_info = getattr(dist._provider, 'path', None)
# Uninstall cases order do matter as in the case of 2 installs of the
# same package, pip needs to uninstall the currently detected version
if (egg_info_exists and dist.egg_info.endswith('.egg-info') and
not dist.egg_info.endswith(develop_egg_link_egg_info)):
# if dist.egg_info.endswith(develop_egg_link_egg_info), we
# are in fact in the develop_egg_link case
paths_to_remove.add(dist.egg_info)
if dist.has_metadata('installed-files.txt'):
for installed_file in dist.get_metadata(
'installed-files.txt').splitlines():
path = os.path.normpath(
os.path.join(dist.egg_info, installed_file)
)
paths_to_remove.add(path)
# FIXME: need a test for this elif block
# occurs with --single-version-externally-managed/--record outside
# of pip
elif dist.has_metadata('top_level.txt'):
if dist.has_metadata('namespace_packages.txt'):
namespaces = dist.get_metadata('namespace_packages.txt')
else:
namespaces = []
for top_level_pkg in [
p for p
in dist.get_metadata('top_level.txt').splitlines()
if p and p not in namespaces]:
path = os.path.join(dist.location, top_level_pkg)
paths_to_remove.add(path)
paths_to_remove.add(path + '.py')
paths_to_remove.add(path + '.pyc')
paths_to_remove.add(path + '.pyo')
elif distutils_egg_info:
warnings.warn(
"Uninstalling a distutils installed project ({0}) has been "
"deprecated and will be removed in a future version. This is "
"due to the fact that uninstalling a distutils project will "
"only partially uninstall the project.".format(self.name),
RemovedInPip10Warning,
)
paths_to_remove.add(distutils_egg_info)
elif dist.location.endswith('.egg'):
# package installed by easy_install
# We cannot match on dist.egg_name because it can slightly vary
# i.e. setuptools-0.6c11-py2.6.egg vs setuptools-0.6rc11-py2.6.egg
paths_to_remove.add(dist.location)
easy_install_egg = os.path.split(dist.location)[1]
easy_install_pth = os.path.join(os.path.dirname(dist.location),
'easy-install.pth')
paths_to_remove.add_pth(easy_install_pth, './' + easy_install_egg)
elif egg_info_exists and dist.egg_info.endswith('.dist-info'):
for path in pip.wheel.uninstallation_paths(dist):
paths_to_remove.add(path)
elif develop_egg_link:
# develop egg
with open(develop_egg_link, 'r') as fh:
link_pointer = os.path.normcase(fh.readline().strip())
assert (link_pointer == dist.location), (
'Egg-link %s does not match installed location of %s '
'(at %s)' % (link_pointer, self.name, dist.location)
)
paths_to_remove.add(develop_egg_link)
easy_install_pth = os.path.join(os.path.dirname(develop_egg_link),
'easy-install.pth')
paths_to_remove.add_pth(easy_install_pth, dist.location)
else:
logger.debug(
'Not sure how to uninstall: %s - Check: %s',
dist, dist.location)
# find distutils scripts= scripts
if dist.has_metadata('scripts') and dist.metadata_isdir('scripts'):
for script in dist.metadata_listdir('scripts'):
if dist_in_usersite(dist):
bin_dir = bin_user
else:
bin_dir = bin_py
paths_to_remove.add(os.path.join(bin_dir, script))
if WINDOWS:
paths_to_remove.add(os.path.join(bin_dir, script) + '.bat')
# find console_scripts
if dist.has_metadata('entry_points.txt'):
if six.PY2:
options = {}
else:
options = {"delimiters": ('=', )}
config = configparser.SafeConfigParser(**options)
config.readfp(
FakeFile(dist.get_metadata_lines('entry_points.txt'))
)
if config.has_section('console_scripts'):
for name, value in config.items('console_scripts'):
if dist_in_usersite(dist):
bin_dir = bin_user
else:
bin_dir = bin_py
paths_to_remove.add(os.path.join(bin_dir, name))
if WINDOWS:
paths_to_remove.add(
os.path.join(bin_dir, name) + '.exe'
)
paths_to_remove.add(
os.path.join(bin_dir, name) + '.exe.manifest'
)
paths_to_remove.add(
os.path.join(bin_dir, name) + '-script.py'
)
paths_to_remove.remove(auto_confirm)
self.uninstalled = paths_to_remove
def rollback_uninstall(self):
if self.uninstalled:
self.uninstalled.rollback()
else:
logger.error(
"Can't rollback %s, nothing uninstalled.", self.name,
)
def commit_uninstall(self):
if self.uninstalled:
self.uninstalled.commit()
elif not self.nothing_to_uninstall:
logger.error(
"Can't commit %s, nothing uninstalled.", self.name,
)
def archive(self, build_dir):
assert self.source_dir
create_archive = True
archive_name = '%s-%s.zip' % (self.name, self.pkg_info()["version"])
archive_path = os.path.join(build_dir, archive_name)
if os.path.exists(archive_path):
response = ask_path_exists(
'The file %s exists. (i)gnore, (w)ipe, (b)ackup, (a)bort ' %
display_path(archive_path), ('i', 'w', 'b', 'a'))
if response == 'i':
create_archive = False
elif response == 'w':
logger.warning('Deleting %s', display_path(archive_path))
os.remove(archive_path)
elif response == 'b':
dest_file = backup_dir(archive_path)
logger.warning(
'Backing up %s to %s',
display_path(archive_path),
display_path(dest_file),
)
shutil.move(archive_path, dest_file)
elif response == 'a':
sys.exit(-1)
if create_archive:
zip = zipfile.ZipFile(
archive_path, 'w', zipfile.ZIP_DEFLATED,
allowZip64=True
)
dir = os.path.normcase(os.path.abspath(self.setup_py_dir))
for dirpath, dirnames, filenames in os.walk(dir):
if 'pip-egg-info' in dirnames:
dirnames.remove('pip-egg-info')
for dirname in dirnames:
dirname = os.path.join(dirpath, dirname)
name = self._clean_zip_name(dirname, dir)
zipdir = zipfile.ZipInfo(self.name + '/' + name + '/')
zipdir.external_attr = 0x1ED << 16 # 0o755
zip.writestr(zipdir, '')
for filename in filenames:
if filename == PIP_DELETE_MARKER_FILENAME:
continue
filename = os.path.join(dirpath, filename)
name = self._clean_zip_name(filename, dir)
zip.write(filename, self.name + '/' + name)
zip.close()
logger.info('Saved %s', display_path(archive_path))
def _clean_zip_name(self, name, prefix):
assert name.startswith(prefix + os.path.sep), (
"name %r doesn't start with prefix %r" % (name, prefix)
)
name = name[len(prefix) + 1:]
name = name.replace(os.path.sep, '/')
return name
def match_markers(self, extras_requested=None):
if not extras_requested:
# Provide an extra to safely evaluate the markers
# without matching any extra
extras_requested = ('',)
if self.markers is not None:
return any(
self.markers.evaluate({'extra': extra})
for extra in extras_requested)
else:
return True
def install(self, install_options, global_options=[], root=None, prefix=None, strip_file_prefix=None):
if self.editable:
self.install_editable(
install_options, global_options, prefix=prefix)
return
if self.is_wheel:
version = pip.wheel.wheel_version(self.source_dir)
pip.wheel.check_compatibility(version, self.name)
self.move_wheel_files(
self.source_dir,
root=root,
prefix=prefix,
strip_file_prefix=strip_file_prefix
)
self.install_succeeded = True
return
# Extend the list of global and install options passed on to
# the setup.py call with the ones from the requirements file.
# Options specified in requirements file override those
# specified on the command line, since the last option given
# to setup.py is the one that is used.
global_options += self.options.get('global_options', [])
install_options += self.options.get('install_options', [])
if self.isolated:
global_options = list(global_options) + ["--no-user-cfg"]
temp_location = tempfile.mkdtemp('-record', 'pip-')
record_filename = os.path.join(temp_location, 'install-record.txt')
try:
install_args = self.get_install_args(
global_options, record_filename, root, prefix)
msg = 'Running setup.py install for %s' % (self.name,)
with open_spinner(msg) as spinner:
with indent_log():
call_subprocess(
install_args + install_options,
cwd=self.setup_py_dir,
show_stdout=False,
spinner=spinner,
)
if not os.path.exists(record_filename):
logger.debug('Record file %s not found', record_filename)
return
self.install_succeeded = True
if self.as_egg:
# there's no --always-unzip option we can pass to install
# command so we unable to save the installed-files.txt
return
def prepend_root(path):
if root is None or not os.path.isabs(path):
return path
else:
return change_root(root, path)
with open(record_filename) as f:
for line in f:
directory = os.path.dirname(line)
if directory.endswith('.egg-info'):
egg_info_dir = prepend_root(directory)
break
else:
logger.warning(
'Could not find .egg-info directory in install record'
' for %s',
self,
)
# FIXME: put the record somewhere
# FIXME: should this be an error?
return
new_lines = []
with open(record_filename) as f:
for line in f:
filename = line.strip()
if os.path.isdir(filename):
filename += os.path.sep
new_lines.append(
os.path.relpath(
prepend_root(filename), egg_info_dir)
)
inst_files_path = os.path.join(egg_info_dir, 'installed-files.txt')
with open(inst_files_path, 'w') as f:
f.write('\n'.join(new_lines) + '\n')
finally:
if os.path.exists(record_filename):
os.remove(record_filename)
rmtree(temp_location)
def ensure_has_source_dir(self, parent_dir):
"""Ensure that a source_dir is set.
This will create a temporary build dir if the name of the requirement
isn't known yet.
:param parent_dir: The ideal pip parent_dir for the source_dir.
Generally src_dir for editables and build_dir for sdists.
:return: self.source_dir
"""
if self.source_dir is None:
self.source_dir = self.build_location(parent_dir)
return self.source_dir
def get_install_args(self, global_options, record_filename, root, prefix):
install_args = [sys.executable, "-u"]
install_args.append('-c')
install_args.append(SETUPTOOLS_SHIM % self.setup_py)
install_args += list(global_options) + \
['install', '--record', record_filename]
if not self.as_egg:
install_args += ['--single-version-externally-managed']
if root is not None:
install_args += ['--root', root]
if prefix is not None:
install_args += ['--prefix', prefix]
if self.pycompile:
install_args += ["--compile"]
else:
install_args += ["--no-compile"]
if running_under_virtualenv():
py_ver_str = 'python' + sysconfig.get_python_version()
install_args += ['--install-headers',
os.path.join(sys.prefix, 'include', 'site',
py_ver_str, self.name)]
return install_args
def remove_temporary_source(self):
"""Remove the source files from this requirement, if they are marked
for deletion"""
if self.source_dir and os.path.exists(
os.path.join(self.source_dir, PIP_DELETE_MARKER_FILENAME)):
logger.debug('Removing source in %s', self.source_dir)
rmtree(self.source_dir)
self.source_dir = None
if self._temp_build_dir and os.path.exists(self._temp_build_dir):
rmtree(self._temp_build_dir)
self._temp_build_dir = None
def install_editable(self, install_options,
global_options=(), prefix=None):
logger.info('Running setup.py develop for %s', self.name)
if self.isolated:
global_options = list(global_options) + ["--no-user-cfg"]
if prefix:
prefix_param = ['--prefix={0}'.format(prefix)]
install_options = list(install_options) + prefix_param
with indent_log():
# FIXME: should we do --install-headers here too?
call_subprocess(
[
sys.executable,
'-c',
SETUPTOOLS_SHIM % self.setup_py
] +
list(global_options) +
['develop', '--no-deps'] +
list(install_options),
cwd=self.setup_py_dir,
show_stdout=False)
self.install_succeeded = True
def check_if_exists(self):
"""Find an installed distribution that satisfies or conflicts
with this requirement, and set self.satisfied_by or
self.conflicts_with appropriately.
"""
if self.req is None:
return False
try:
# get_distribution() will resolve the entire list of requirements
# anyway, and we've already determined that we need the requirement
# in question, so strip the marker so that we don't try to
# evaluate it.
no_marker = Requirement(str(self.req))
no_marker.marker = None
self.satisfied_by = pkg_resources.get_distribution(str(no_marker))
if self.editable and self.satisfied_by:
self.conflicts_with = self.satisfied_by
# when installing editables, nothing pre-existing should ever
# satisfy
self.satisfied_by = None
return True
except pkg_resources.DistributionNotFound:
return False
except pkg_resources.VersionConflict:
existing_dist = pkg_resources.get_distribution(
self.req.name
)
if self.use_user_site:
if dist_in_usersite(existing_dist):
self.conflicts_with = existing_dist
elif (running_under_virtualenv() and
dist_in_site_packages(existing_dist)):
raise InstallationError(
"Will not install to the user site because it will "
"lack sys.path precedence to %s in %s" %
(existing_dist.project_name, existing_dist.location)
)
else:
self.conflicts_with = existing_dist
return True
@property
def is_wheel(self):
return self.link and self.link.is_wheel
def move_wheel_files(self, wheeldir, root=None, prefix=None, strip_file_prefix=None):
move_wheel_files(
self.name, self.req, wheeldir,
user=self.use_user_site,
home=self.target_dir,
root=root,
prefix=prefix,
pycompile=self.pycompile,
isolated=self.isolated,
strip_file_prefix=strip_file_prefix,
)
def get_dist(self):
"""Return a pkg_resources.Distribution built from self.egg_info_path"""
egg_info = self.egg_info_path('').rstrip('/')
base_dir = os.path.dirname(egg_info)
metadata = pkg_resources.PathMetadata(base_dir, egg_info)
dist_name = os.path.splitext(os.path.basename(egg_info))[0]
return pkg_resources.Distribution(
os.path.dirname(egg_info),
project_name=dist_name,
metadata=metadata)
@property
def has_hash_options(self):
"""Return whether any known-good hashes are specified as options.
These activate --require-hashes mode; hashes specified as part of a
URL do not.
"""
return bool(self.options.get('hashes', {}))
def hashes(self, trust_internet=True):
"""Return a hash-comparer that considers my option- and URL-based
hashes to be known-good.
Hashes in URLs--ones embedded in the requirements file, not ones
downloaded from an index server--are almost peers with ones from
flags. They satisfy --require-hashes (whether it was implicitly or
explicitly activated) but do not activate it. md5 and sha224 are not
allowed in flags, which should nudge people toward good algos. We
always OR all hashes together, even ones from URLs.
:param trust_internet: Whether to trust URL-based (#md5=...) hashes
downloaded from the internet, as by populate_link()
"""
good_hashes = self.options.get('hashes', {}).copy()
link = self.link if trust_internet else self.original_link
if link and link.hash:
good_hashes.setdefault(link.hash_name, []).append(link.hash)
return Hashes(good_hashes)
def _strip_postfix(req):
"""
Strip req postfix ( -dev, 0.2, etc )
"""
# FIXME: use package_to_requirement?
match = re.search(r'^(.*?)(?:-dev|-\d.*)$', req)
if match:
# Strip off -dev, -0.2, etc.
req = match.group(1)
return req
def parse_editable(editable_req, default_vcs=None):
"""Parses an editable requirement into:
- a requirement name
- an URL
- extras
- editable options
Accepted requirements:
svn+http://blahblah@rev#egg=Foobar[baz]&subdirectory=version_subdir
.[some_extra]
"""
from pip.index import Link
url = editable_req
extras = None
# If a file path is specified with extras, strip off the extras.
m = re.match(r'^(.+)(\[[^\]]+\])$', url)
if m:
url_no_extras = m.group(1)
extras = m.group(2)
else:
url_no_extras = url
if os.path.isdir(url_no_extras):
if not os.path.exists(os.path.join(url_no_extras, 'setup.py')):
raise InstallationError(
"Directory %r is not installable. File 'setup.py' not found." %
url_no_extras
)
# Treating it as code that has already been checked out
url_no_extras = path_to_url(url_no_extras)
if url_no_extras.lower().startswith('file:'):
package_name = Link(url_no_extras).egg_fragment
if extras:
return (
package_name,
url_no_extras,
Requirement("placeholder" + extras.lower()).extras,
)
else:
return package_name, url_no_extras, None
for version_control in vcs:
if url.lower().startswith('%s:' % version_control):
url = '%s+%s' % (version_control, url)
break
if '+' not in url:
if default_vcs:
warnings.warn(
"--default-vcs has been deprecated and will be removed in "
"the future.",
RemovedInPip10Warning,
)
url = default_vcs + '+' + url
else:
raise InstallationError(
'%s should either be a path to a local project or a VCS url '
'beginning with svn+, git+, hg+, or bzr+' %
editable_req
)
vc_type = url.split('+', 1)[0].lower()
if not vcs.get_backend(vc_type):
error_message = 'For --editable=%s only ' % editable_req + \
', '.join([backend.name + '+URL' for backend in vcs.backends]) + \
' is currently supported'
raise InstallationError(error_message)
package_name = Link(url).egg_fragment
if not package_name:
raise InstallationError(
"Could not detect requirement name, please specify one with #egg="
)
if not package_name:
raise InstallationError(
'--editable=%s is not the right format; it must have '
'#egg=Package' % editable_req
)
return _strip_postfix(package_name), url, None
|