from __future__ import absolute_import import logging import os import re import shutil import sys import tempfile import warnings import zipfile from distutils.util import change_root from distutils import sysconfig from email.parser import FeedParser from pip._vendor import pkg_resources, six from pip._vendor.distlib.markers import interpret as markers_interpret from pip._vendor.six.moves import configparser from pip._vendor.six.moves.urllib import parse as urllib_parse import pip.wheel from pip.compat import native_str, WINDOWS from pip.download import is_url, url_to_path, path_to_url, is_archive_file from pip.exceptions import ( InstallationError, UninstallationError, UnsupportedWheel, ) 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, make_path_relative, call_subprocess, read_text_file, FakeFile, _make_build_dir, ) from pip.utils.deprecation import RemovedInPip8Warning from pip.utils.logging import indent_log from pip.req.req_uninstall import UninstallPathSet from pip.vcs import vcs from pip.wheel import move_wheel_files, Wheel, wheel_ext from pip._vendor.packaging.version import Version logger = logging.getLogger(__name__) class InstallRequirement(object): def __init__(self, req, comes_from, source_dir=None, editable=False, url=None, as_egg=False, update=True, editable_options=None, pycompile=True, markers=None, isolated=False): self.extras = () if isinstance(req, six.string_types): req = pkg_resources.Requirement.parse(req) self.extras = req.extras self.req = req self.comes_from = comes_from self.source_dir = source_dir self.editable = editable if editable_options is None: editable_options = {} self.editable_options = editable_options self.url = url self.as_egg = as_egg self.markers = markers 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 self._temp_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 self.use_user_site = False self.target_dir = None self.pycompile = pycompile self.isolated = isolated @classmethod def from_editable(cls, editable_req, comes_from=None, default_vcs=None, isolated=False): name, url, extras_override, editable_options = 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, url=url, editable_options=editable_options, isolated=isolated) if extras_override is not None: res.extras = extras_override return res @classmethod def from_line(cls, name, comes_from=None, isolated=False): """Creates an InstallRequirement from a name, which might be a requirement, directory containing 'setup.py', filename, or URL. """ from pip.index import Link url = None 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 = None name = name.strip() req = None path = os.path.normpath(os.path.abspath(name)) link = None if is_url(name): link = Link(name) elif (os.path.isdir(path) and (os.path.sep in name or name.startswith('.'))): if not is_installable_dir(path): raise InstallationError( "Directory %r is not installable. File 'setup.py' not " "found." % name ) link = Link(path_to_url(name)) elif is_archive_file(path): if not os.path.isfile(path): logger.warning( 'Requirement %r looks like a filename, but the file does ' 'not exist', name ) link = Link(path_to_url(name)) # it's a local file, dir, or url if link: url = link.url # Handle relative file URLs if link.scheme == 'file' and re.search(r'\.\./', url): url = path_to_url(os.path.normpath(os.path.abspath(link.path))) # wheel file if link.ext == wheel_ext: wheel = Wheel(link.filename) # can raise InvalidWheelFilename if not wheel.supported(): raise UnsupportedWheel( "%s is not a supported wheel on this platform." % wheel.filename ) 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 return cls(req, comes_from, url=url, markers=markers, isolated=isolated) def __str__(self): if self.req: s = str(self.req) if self.url: s += ' from %s' % self.url else: s = self.url 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 @property def specifier(self): return self.req.specifier 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: self._temp_build_dir = 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): _make_build_dir(build_dir) return os.path.join(build_dir, name) def correct_build_location(self): """If the build location was a temporary directory, this will move it to a new more permanent location""" if self.source_dir is not None: return assert self.req is not None assert self._temp_build_dir old_location = self._temp_build_dir new_build_dir = self._ideal_build_dir del self._ideal_build_dir if self.editable: name = self.name.lower() else: name = self.name new_location = os.path.join(new_build_dir, name) if not os.path.exists(new_build_dir): logger.debug('Creating directory %s', new_build_dir) _make_build_dir(new_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.source_dir = new_location self._egg_info_path = None @property def name(self): if self.req is None: return None return native_str(self.req.project_name) @property def url_name(self): if self.req is None: return None return urllib_parse.quote(self.req.project_name.lower()) @property def setup_py(self): try: import setuptools # noqa except ImportError: # Setuptools is not available raise InstallationError( "setuptools must be installed to install from a source " "distribution" ) setup_file = 'setup.py' if self.editable_options and 'subdirectory' in self.editable_options: setup_py = os.path.join(self.source_dir, self.editable_options['subdirectory'], setup_file) else: setup_py = os.path.join(self.source_dir, setup_file) # 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.url, ) with indent_log(): # if it's distribute>=0.7, it won't contain an importable # setuptools, and having an egg-info dir blocks the ability of # setup.py to find setuptools plugins, so delete the egg-info dir # if no setuptools. it will get recreated by the run of egg_info # NOTE: this self.name check only works when installing from a # specifier (not archive path/urls) # TODO: take this out later if (self.name == 'distribute' and not os.path.isdir( os.path.join(self.source_dir, 'setuptools'))): rmtree(os.path.join(self.source_dir, 'distribute.egg-info')) script = self._run_setup_py script = script.replace('__SETUP_PY__', repr(self.setup_py)) script = script.replace('__PKG_NAME__', repr(self.name)) 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.source_dir, 'pip-egg-info') if not os.path.exists(egg_info_dir): os.makedirs(egg_info_dir) egg_base_option = ['--egg-base', 'pip-egg-info'] cwd = self.source_dir if self.editable_options and \ 'subdirectory' in self.editable_options: cwd = os.path.join(cwd, self.editable_options['subdirectory']) call_subprocess( egg_info_cmd + egg_base_option, cwd=cwd, filter_stdout=self._filter_install, show_stdout=False, command_level=logging.DEBUG, command_desc='python setup.py egg_info') if not self.req: if isinstance( pkg_resources.parse_version(self.pkg_info()["Version"]), Version): op = "==" else: op = "===" self.req = pkg_resources.Requirement.parse( "".join([ self.pkg_info()["Name"], op, self.pkg_info()["Version"], ])) self.correct_build_location() # FIXME: This is a lame hack, entirely for PasteScript which has # a self-provided entry point that causes this awkwardness _run_setup_py = """ __file__ = __SETUP_PY__ from setuptools.command import egg_info import pkg_resources import os import tokenize def replacement_run(self): self.mkpath(self.egg_info) installer = self.distribution.fetch_build_egg for ep in pkg_resources.iter_entry_points('egg_info.writers'): # require=False is the change we're making: writer = ep.load(require=False) if writer: writer(self, ep.name, os.path.join(self.egg_info,ep.name)) self.find_sources() egg_info.egg_info.run = replacement_run exec(compile( getattr(tokenize, 'open', open)(__file__).read().replace('\\r\\n', '\\n'), __file__, 'exec' )) """ 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.source_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.exists( 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): # Create a requirement that we'll look for inside of setuptools. req = pkg_resources.Requirement.parse(self.name) # We want to avoid having this cached, so we need to construct a new # working set each time. working_set = pkg_resources.WorkingSet() # Get the installed distribution from our working set dist = working_set.find(req) # Check to see if we got an installed distribution or not, if we did # we want to return it's version. if dist: return dist.version def assert_source_matches_version(self): assert self.source_dir version = self.pkg_info()['version'] if version not in self.req: 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.url: logger.debug( "Cannot update repository at %s; repository location is " "unknown", self.source_dir, ) return assert self.editable assert self.source_dir if self.url.startswith('file:'): # Static paths don't get updated return assert '+' in self.url, "bad url: %r" % self.url if not self.update: return vc_type, url = self.url.split('+', 1) backend = vcs.get_backend(vc_type) if backend: vcs_backend = backend(self.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.url, 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 paths_to_remove = UninstallPathSet(dist) develop_egg_link = egg_link_path(dist) 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) if 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) elif egg_info_exists and dist.egg_info.endswith('.egg-info'): 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') 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), RemovedInPip8Warning, ) 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) 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'): config = configparser.SafeConfigParser() 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.project_name, ) def commit_uninstall(self): if self.uninstalled: self.uninstalled.commit() else: logger.error( "Can't commit %s, nothing uninstalled.", self.project_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 ' % display_path(archive_path), ('i', 'w', 'b')) 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) if create_archive: zip = zipfile.ZipFile( archive_path, 'w', zipfile.ZIP_DEFLATED, allowZip64=True ) dir = os.path.normcase(os.path.abspath(self.source_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): if self.markers is not None: return markers_interpret(self.markers) else: return True def install(self, install_options, global_options=(), root=None): if self.editable: self.install_editable(install_options, global_options) 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) self.install_succeeded = True return 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 = [sys.executable] install_args.append('-c') install_args.append( "import setuptools, tokenize;__file__=%r;" "exec(compile(getattr(tokenize, 'open', open)(__file__).read()" ".replace('\\r\\n', '\\n'), __file__, 'exec'))" % 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 self.pycompile: install_args += ["--compile"] else: install_args += ["--no-compile"] if running_under_virtualenv(): # FIXME: I'm not sure if this is a reasonable location; # probably not but we can't put it in the default location, as # that is a virtualenv symlink that isn't writable py_ver_str = 'python' + sysconfig.get_python_version() install_args += ['--install-headers', os.path.join(sys.prefix, 'include', 'site', py_ver_str)] logger.info('Running setup.py install for %s', self.name) with indent_log(): call_subprocess( install_args + install_options, cwd=self.source_dir, filter_stdout=self._filter_install, show_stdout=False, ) 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( make_path_relative( 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 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=()): logger.info('Running setup.py develop for %s', self.name) if self.isolated: global_options = list(global_options) + ["--no-user-cfg"] with indent_log(): # FIXME: should we do --install-headers here too? cwd = self.source_dir if self.editable_options and \ 'subdirectory' in self.editable_options: cwd = os.path.join(cwd, self.editable_options['subdirectory']) call_subprocess( [ sys.executable, '-c', "import setuptools, tokenize; __file__=%r; exec(compile(" "getattr(tokenize, 'open', open)(__file__).read().replace" "('\\r\\n', '\\n'), __file__, 'exec'))" % self.setup_py ] + list(global_options) + ['develop', '--no-deps'] + list(install_options), cwd=cwd, filter_stdout=self._filter_install, show_stdout=False) self.install_succeeded = True def _filter_install(self, line): level = logging.INFO for regex in [ r'^running .*', r'^writing .*', '^creating .*', '^[Cc]opying .*', r'^reading .*', r"^removing .*\.egg-info' \(and everything under it\)$", r'^byte-compiling ', r'^SyntaxError:', r'^SyntaxWarning:', r'^\s*Skipping implicit fixer: ', r'^\s*(warning: )?no previously-included (files|directories) ', r'^\s*warning: no files found matching \'.*\'', # Not sure what this warning is, but it seems harmless: r"^warning: manifest_maker: standard file '-c' not found$"]: if not line or re.search(regex, line.strip()): level = logging.DEBUG break return (level, line) 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: # DISTRIBUTE TO SETUPTOOLS UPGRADE HACK (1 of 3 parts) # if we've already set distribute as a conflict to setuptools # then this check has already run before. we don't want it to # run again, and return False, since it would block the uninstall # TODO: remove this later if (self.req.project_name == 'setuptools' and self.conflicts_with and self.conflicts_with.project_name == 'distribute'): return True else: self.satisfied_by = pkg_resources.get_distribution(self.req) except pkg_resources.DistributionNotFound: return False except pkg_resources.VersionConflict: existing_dist = pkg_resources.get_distribution( self.req.project_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.url and '.whl' in self.url def move_wheel_files(self, wheeldir, root=None): move_wheel_files( self.name, self.req, wheeldir, user=self.use_user_site, home=self.target_dir, root=root, pycompile=self.pycompile, isolated=self.isolated, ) def get_dist(self): """Return a pkg_resources.Distribution built from self.egg_info_path""" egg_info = self.egg_info_path('') 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) 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 _build_req_from_url(url): parts = [p for p in url.split('#', 1)[0].split('/') if p] req = None if parts[-2] in ('tags', 'branches', 'tag', 'branch'): req = parts[-3] elif parts[-1] == 'trunk': req = parts[-2] return req def _build_editable_options(req): """ This method generates a dictionary of the query string parameters contained in a given editable URL. """ regexp = re.compile(r"[\?#&](?P[^&=]+)=(?P[^&=]+)") matched = regexp.findall(req) if matched: ret = dict() for option in matched: (name, value) = option if name in ret: raise Exception("%s option already defined" % name) ret[name] = value return ret return None 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] """ 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:'): if extras: return ( None, url_no_extras, pkg_resources.Requirement.parse( '__placeholder__' + extras ).extras, {}, ) else: return None, 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: 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) try: options = _build_editable_options(editable_req) except Exception as exc: raise InstallationError( '--editable=%s error in editable options:%s' % (editable_req, exc) ) if not options or 'egg' not in options: req = _build_req_from_url(editable_req) if not req: raise InstallationError( '--editable=%s is not the right format; it must have ' '#egg=Package' % editable_req ) else: req = options['egg'] package = _strip_postfix(req) return package, url, None, options