Example #1
0
    def _get_file_stash(self, path):
        """Stashes a file.

        If no root has been provided, one will be created for the directory
        in the user's temp directory."""
        path = os.path.normcase(path)
        head, old_head = os.path.dirname(path), None
        save_dir = None

        while head != old_head:
            try:
                save_dir = self._save_dirs[head]
                break
            except KeyError:
                pass
            head, old_head = os.path.dirname(head), head
        else:
            # Did not find any suitable root
            head = os.path.dirname(path)
            save_dir = TempDirectory(kind='uninstall')
            save_dir.create()
            self._save_dirs[head] = save_dir

        relpath = os.path.relpath(path, head)
        if relpath and relpath != os.path.curdir:
            return os.path.join(save_dir.path, relpath)
        return save_dir.path
Example #2
0
    def __init__(self, format_control):
        # type: (FormatControl) -> None
        self._temp_dir = TempDirectory(kind="ephem-wheel-cache")
        self._temp_dir.create()

        super(EphemWheelCache, self).__init__(
            self._temp_dir.path, format_control
        )
Example #3
0
    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))
Example #4
0
 def __init__(self):
     # type: () -> None
     self._root = os.environ.get('PIP_REQ_TRACKER')
     if self._root is None:
         self._temp_dir = TempDirectory(delete=False, kind='req-tracker')
         self._temp_dir.create()
         self._root = os.environ['PIP_REQ_TRACKER'] = self._temp_dir.path
         logger.debug('Created requirements tracker %r', self._root)
     else:
         self._temp_dir = None
         logger.debug('Re-using requirements tracker %r', self._root)
     self._entries = set()  # type: Set[InstallRequirement]
Example #5
0
class EphemWheelCache(SimpleWheelCache):
    """A SimpleWheelCache that creates it's own temporary cache directory
    """

    def __init__(self, format_control):
        # type: (FormatControl) -> None
        self._temp_dir = TempDirectory(kind="ephem-wheel-cache")
        self._temp_dir.create()

        super(EphemWheelCache, self).__init__(
            self._temp_dir.path, format_control
        )

    def cleanup(self):
        # type: () -> None
        self._temp_dir.cleanup()
Example #6
0
    def export(self, location):
        """Export the Hg repository at the url to the destination location"""
        with TempDirectory(kind="export") as temp_dir:
            self.unpack(temp_dir.path)

            self.run_command(
                ['archive', location], show_stdout=False, cwd=temp_dir.path
            )
Example #7
0
    def _get_directory_stash(self, path):
        """Stashes a directory.

        Directories are stashed adjacent to their original location if
        possible, or else moved/copied into the user's temp dir."""

        try:
            save_dir = AdjacentTempDirectory(path)
            save_dir.create()
        except OSError:
            save_dir = TempDirectory(kind="uninstall")
            save_dir.create()
        self._save_dirs[os.path.normcase(path)] = save_dir

        return save_dir.path
Example #8
0
    def export(self, location):
        """
        Export the Bazaar repository at the url to the destination location
        """
        # Remove the location to make sure Bazaar can export it correctly
        if os.path.exists(location):
            rmtree(location)

        with TempDirectory(kind="export") as temp_dir:
            self.unpack(temp_dir.path)

            self.run_command(
                ['export', location],
                cwd=temp_dir.path,
                show_stdout=False,
            )
Example #9
0
 def _build_one_inside_env(self, req, output_dir, python_tag=None):
     with TempDirectory(kind="wheel") as temp_dir:
         if req.use_pep517:
             builder = self._build_one_pep517
         else:
             builder = self._build_one_legacy
         wheel_path = builder(req, temp_dir.path, python_tag=python_tag)
         if wheel_path is not None:
             wheel_name = os.path.basename(wheel_path)
             dest_path = os.path.join(output_dir, wheel_name)
             try:
                 shutil.move(wheel_path, dest_path)
                 logger.info('Stored in directory: %s', output_dir)
                 return dest_path
             except Exception:
                 pass
         # Ignore return, we can't do anything else useful.
         self._clean_one(req)
         return None
Example #10
0
def unpack_http_url(
        link,  # type: Link
        location,  # type: str
        download_dir=None,  # type: Optional[str]
        session=None,  # type: Optional[PipSession]
        hashes=None,  # type: Optional[Hashes]
        progress_bar="on"  # type: str
):
    # type: (...) -> None
    if session is None:
        raise TypeError(
            "unpack_http_url() missing 1 required keyword argument: 'session'")

    with TempDirectory(kind="unpack") as temp_dir:
        # If a download dir is specified, is the file already downloaded there?
        already_downloaded_path = None
        if download_dir:
            already_downloaded_path = _check_download_dir(
                link, download_dir, hashes)

        if already_downloaded_path:
            from_path = already_downloaded_path
            content_type = mimetypes.guess_type(from_path)[0]
        else:
            # let's download to a tmp dir
            from_path, content_type = _download_http_url(
                link, session, temp_dir.path, hashes, progress_bar)

        # unpack the archive to the build dir location. even when only
        # downloading archives, they have to be unpacked to parse dependencies
        unpack_file(from_path, location, content_type, link)

        # a download dir is specified; let's copy the archive there
        if download_dir and not already_downloaded_path:
            _copy_file(from_path, download_dir, link)

        if not already_downloaded_path:
            os.unlink(from_path)
Example #11
0
    def run(self, options, args):
        options.ignore_installed = True
        # editable doesn't really make sense for `pip download`, but the bowels
        # of the RequirementSet code require that property.
        options.editables = []

        if options.python_version:
            python_versions = [options.python_version]
        else:
            python_versions = None

        cmdoptions.check_dist_restriction(options)

        options.src_dir = os.path.abspath(options.src_dir)
        options.download_dir = normalize_path(options.download_dir)

        ensure_dir(options.download_dir)

        with self._build_session(options) as session:
            finder = self._build_package_finder(
                options=options,
                session=session,
                platform=options.platform,
                python_versions=python_versions,
                abi=options.abi,
                implementation=options.implementation,
            )
            build_delete = (not (options.no_clean or options.build_dir))
            if options.cache_dir and not check_path_owner(options.cache_dir):
                logger.warning(
                    "The directory '%s' or its parent directory is not owned "
                    "by the current user and caching wheels has been "
                    "disabled. check the permissions and owner of that "
                    "directory. If executing pip with sudo, you may want "
                    "sudo's -H flag.",
                    options.cache_dir,
                )
                options.cache_dir = None

            with RequirementTracker() as req_tracker, TempDirectory(
                    options.build_dir, delete=build_delete,
                    kind="download") as directory:

                requirement_set = RequirementSet(
                    require_hashes=options.require_hashes, )
                self.populate_requirement_set(requirement_set, args, options,
                                              finder, session, self.name, None)

                preparer = RequirementPreparer(
                    build_dir=directory.path,
                    src_dir=options.src_dir,
                    download_dir=options.download_dir,
                    wheel_download_dir=None,
                    progress_bar=options.progress_bar,
                    build_isolation=options.build_isolation,
                    req_tracker=req_tracker,
                )

                resolver = Resolver(
                    preparer=preparer,
                    finder=finder,
                    session=session,
                    wheel_cache=None,
                    use_user_site=False,
                    upgrade_strategy="to-satisfy-only",
                    force_reinstall=False,
                    ignore_dependencies=options.ignore_dependencies,
                    ignore_requires_python=False,
                    ignore_installed=True,
                    isolated=options.isolated_mode,
                )
                resolver.resolve(requirement_set)

                downloaded = ' '.join([
                    req.name for req in requirement_set.successfully_downloaded
                ])
                if downloaded:
                    logger.info('Successfully downloaded %s', downloaded)

                # Clean up
                if not options.no_clean:
                    requirement_set.cleanup_files()

        return requirement_set
Example #12
0
    def run(self, options, args):
        cmdoptions.check_install_build_global(options)
        upgrade_strategy = "to-satisfy-only"
        if options.upgrade:
            upgrade_strategy = options.upgrade_strategy

        if options.build_dir:
            options.build_dir = os.path.abspath(options.build_dir)

        cmdoptions.check_dist_restriction(options, check_target=True)

        if options.python_version:
            python_versions = [options.python_version]
        else:
            python_versions = None

        options.src_dir = os.path.abspath(options.src_dir)
        install_options = options.install_options or []
        if options.use_user_site:
            if options.prefix_path:
                raise CommandError(
                    "Can not combine '--user' and '--prefix' as they imply "
                    "different installation locations"
                )
            if virtualenv_no_global():
                raise InstallationError(
                    "Can not perform a '--user' install. User site-packages "
                    "are not visible in this virtualenv."
                )
            install_options.append('--user')
            install_options.append('--prefix=')

        target_temp_dir = TempDirectory(kind="target")
        if options.target_dir:
            options.ignore_installed = True
            options.target_dir = os.path.abspath(options.target_dir)
            if (os.path.exists(options.target_dir) and not
                    os.path.isdir(options.target_dir)):
                raise CommandError(
                    "Target path exists but is not a directory, will not "
                    "continue."
                )

            # Create a target directory for using with the target option
            target_temp_dir.create()
            install_options.append('--home=' + target_temp_dir.path)

        global_options = options.global_options or []

        with self._build_session(options) as session:
            finder = self._build_package_finder(
                options=options,
                session=session,
                platform=options.platform,
                python_versions=python_versions,
                abi=options.abi,
                implementation=options.implementation,
            )
            build_delete = (not (options.no_clean or options.build_dir))
            wheel_cache = WheelCache(options.cache_dir, options.format_control)

            if options.cache_dir and not check_path_owner(options.cache_dir):
                logger.warning(
                    "The directory '%s' or its parent directory is not owned "
                    "by the current user and caching wheels has been "
                    "disabled. check the permissions and owner of that "
                    "directory. If executing pip with sudo, you may want "
                    "sudo's -H flag.",
                    options.cache_dir,
                )
                options.cache_dir = None

            with RequirementTracker() as req_tracker, TempDirectory(
                options.build_dir, delete=build_delete, kind="install"
            ) as directory:
                requirement_set = RequirementSet(
                    require_hashes=options.require_hashes,
                    check_supported_wheels=not options.target_dir,
                )

                try:
                    self.populate_requirement_set(
                        requirement_set, args, options, finder, session,
                        self.name, wheel_cache
                    )
                    preparer = RequirementPreparer(
                        build_dir=directory.path,
                        src_dir=options.src_dir,
                        download_dir=None,
                        wheel_download_dir=None,
                        progress_bar=options.progress_bar,
                        build_isolation=options.build_isolation,
                        req_tracker=req_tracker,
                    )

                    resolver = Resolver(
                        preparer=preparer,
                        finder=finder,
                        session=session,
                        wheel_cache=wheel_cache,
                        use_user_site=options.use_user_site,
                        upgrade_strategy=upgrade_strategy,
                        force_reinstall=options.force_reinstall,
                        ignore_dependencies=options.ignore_dependencies,
                        ignore_requires_python=options.ignore_requires_python,
                        ignore_installed=options.ignore_installed,
                        isolated=options.isolated_mode,
                        use_pep517=options.use_pep517
                    )
                    resolver.resolve(requirement_set)

                    protect_pip_from_modification_on_windows(
                        modifying_pip=requirement_set.has_requirement("pip")
                    )

                    # Consider legacy and PEP517-using requirements separately
                    legacy_requirements = []
                    pep517_requirements = []
                    for req in requirement_set.requirements.values():
                        if req.use_pep517:
                            pep517_requirements.append(req)
                        else:
                            legacy_requirements.append(req)

                    # We don't build wheels for legacy requirements if we
                    # don't have wheel installed or we don't have a cache dir
                    try:
                        import wheel  # noqa: F401
                        build_legacy = bool(options.cache_dir)
                    except ImportError:
                        build_legacy = False

                    wb = WheelBuilder(
                        finder, preparer, wheel_cache,
                        build_options=[], global_options=[],
                    )

                    # Always build PEP 517 requirements
                    build_failures = wb.build(
                        pep517_requirements,
                        session=session, autobuilding=True
                    )

                    if build_legacy:
                        # We don't care about failures building legacy
                        # requirements, as we'll fall through to a direct
                        # install for those.
                        wb.build(
                            legacy_requirements,
                            session=session, autobuilding=True
                        )

                    # If we're using PEP 517, we cannot do a direct install
                    # so we fail here.
                    if build_failures:
                        raise InstallationError(
                            "Could not build wheels for {} which use"
                            " PEP 517 and cannot be installed directly".format(
                                ", ".join(r.name for r in build_failures)))

                    to_install = resolver.get_installation_order(
                        requirement_set
                    )

                    # Consistency Checking of the package set we're installing.
                    should_warn_about_conflicts = (
                        not options.ignore_dependencies and
                        options.warn_about_conflicts
                    )
                    if should_warn_about_conflicts:
                        self._warn_about_conflicts(to_install)

                    # Don't warn about script install locations if
                    # --target has been specified
                    warn_script_location = options.warn_script_location
                    if options.target_dir:
                        warn_script_location = False

                    installed = install_given_reqs(
                        to_install,
                        install_options,
                        global_options,
                        root=options.root_path,
                        home=target_temp_dir.path,
                        prefix=options.prefix_path,
                        pycompile=options.compile,
                        warn_script_location=warn_script_location,
                        use_user_site=options.use_user_site,
                    )

                    lib_locations = get_lib_location_guesses(
                        user=options.use_user_site,
                        home=target_temp_dir.path,
                        root=options.root_path,
                        prefix=options.prefix_path,
                        isolated=options.isolated_mode,
                    )
                    working_set = pkg_resources.WorkingSet(lib_locations)

                    reqs = sorted(installed, key=operator.attrgetter('name'))
                    items = []
                    for req in reqs:
                        item = req.name
                        try:
                            installed_version = get_installed_version(
                                req.name, working_set=working_set
                            )
                            if installed_version:
                                item += '-' + installed_version
                        except Exception:
                            pass
                        items.append(item)
                    installed = ' '.join(items)
                    if installed:
                        logger.info('Successfully installed %s', installed)
                except EnvironmentError as error:
                    show_traceback = (self.verbosity >= 1)

                    message = create_env_error_message(
                        error, show_traceback, options.use_user_site,
                    )
                    logger.error(message, exc_info=show_traceback)

                    return ERROR
                except PreviousBuildDirError:
                    options.no_clean = True
                    raise
                finally:
                    # Clean up
                    if not options.no_clean:
                        requirement_set.cleanup_files()
                        wheel_cache.cleanup()

        if options.target_dir:
            self._handle_target_dir(
                options.target_dir, target_temp_dir, options.upgrade
            )
        return requirement_set
Example #13
0
    def run(self, options, args):
        cmdoptions.check_install_build_global(options)

        index_urls = [options.index_url] + options.extra_index_urls
        if options.no_index:
            logger.debug('Ignoring indexes: %s', ','.join(index_urls))
            index_urls = []

        if options.build_dir:
            options.build_dir = os.path.abspath(options.build_dir)

        options.src_dir = os.path.abspath(options.src_dir)

        with self._build_session(options) as session:
            finder = self._build_package_finder(options, session)
            build_delete = (not (options.no_clean or options.build_dir))
            wheel_cache = WheelCache(options.cache_dir, options.format_control)

            with RequirementTracker() as req_tracker, TempDirectory(
                    options.build_dir, delete=build_delete,
                    kind="wheel") as directory:

                requirement_set = RequirementSet(
                    require_hashes=options.require_hashes, )

                try:
                    self.populate_requirement_set(requirement_set, args,
                                                  options, finder, session,
                                                  self.name, wheel_cache)

                    preparer = RequirementPreparer(
                        build_dir=directory.path,
                        src_dir=options.src_dir,
                        download_dir=None,
                        wheel_download_dir=options.wheel_dir,
                        progress_bar=options.progress_bar,
                        build_isolation=options.build_isolation,
                        req_tracker=req_tracker,
                    )

                    resolver = Resolver(
                        preparer=preparer,
                        finder=finder,
                        session=session,
                        wheel_cache=wheel_cache,
                        use_user_site=False,
                        upgrade_strategy="to-satisfy-only",
                        force_reinstall=False,
                        ignore_dependencies=options.ignore_dependencies,
                        ignore_requires_python=options.ignore_requires_python,
                        ignore_installed=True,
                        isolated=options.isolated_mode,
                        use_pep517=options.use_pep517)
                    resolver.resolve(requirement_set)

                    # build wheels
                    wb = WheelBuilder(
                        finder,
                        preparer,
                        wheel_cache,
                        build_options=options.build_options or [],
                        global_options=options.global_options or [],
                        no_clean=options.no_clean,
                    )
                    build_failures = wb.build(
                        requirement_set.requirements.values(),
                        session=session,
                    )
                    if len(build_failures) != 0:
                        raise CommandError(
                            "Failed to build one or more wheels")
                except PreviousBuildDirError:
                    options.no_clean = True
                    raise
                finally:
                    if not options.no_clean:
                        requirement_set.cleanup_files()
                        wheel_cache.cleanup()
Example #14
0
class RequirementTracker(object):
    def __init__(self):
        # type: () -> None
        self._root = os.environ.get('PIP_REQ_TRACKER')
        if self._root is None:
            self._temp_dir = TempDirectory(delete=False, kind='req-tracker')
            self._temp_dir.create()
            self._root = os.environ['PIP_REQ_TRACKER'] = self._temp_dir.path
            logger.debug('Created requirements tracker %r', self._root)
        else:
            self._temp_dir = None
            logger.debug('Re-using requirements tracker %r', self._root)
        self._entries = set()  # type: Set[InstallRequirement]

    def __enter__(self):
        return self

    def __exit__(self, exc_type, exc_val, exc_tb):
        self.cleanup()

    def _entry_path(self, link):
        # type: (Link) -> str
        hashed = hashlib.sha224(link.url_without_fragment.encode()).hexdigest()
        return os.path.join(self._root, hashed)

    def add(self, req):
        # type: (InstallRequirement) -> None
        link = req.link
        info = str(req)
        entry_path = self._entry_path(link)
        try:
            with open(entry_path) as fp:
                # Error, these's already a build in progress.
                raise LookupError('%s is already being built: %s' %
                                  (link, fp.read()))
        except IOError as e:
            if e.errno != errno.ENOENT:
                raise
            assert req not in self._entries
            with open(entry_path, 'w') as fp:
                fp.write(info)
            self._entries.add(req)
            logger.debug('Added %s to build tracker %r', req, self._root)

    def remove(self, req):
        # type: (InstallRequirement) -> None
        link = req.link
        self._entries.remove(req)
        os.unlink(self._entry_path(link))
        logger.debug('Removed %s from build tracker %r', req, self._root)

    def cleanup(self):
        # type: () -> None
        for req in set(self._entries):
            self.remove(req)
        remove = self._temp_dir is not None
        if remove:
            self._temp_dir.cleanup()
        logger.debug('%s build tracker %r', 'Removed' if remove else 'Cleaned',
                     self._root)

    @contextlib.contextmanager
    def track(self, req):
        # type: (InstallRequirement) -> Iterator[None]
        self.add(req)
        yield
        self.remove(req)
Example #15
0
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)
Example #16
0
    def install(
            self,
            install_options,  # type: List[str]
            global_options=None,  # type: Optional[Sequence[str]]
            root=None,  # type: Optional[str]
            home=None,  # type: Optional[str]
            prefix=None,  # type: Optional[str]
            warn_script_location=True,  # type: bool
            use_user_site=False,  # type: bool
            pycompile=True  # type: bool
    ):
        # type: (...) -> None
        global_options = global_options if global_options is not None else []
        if self.editable:
            self.install_editable(
                install_options,
                global_options,
                prefix=prefix,
            )
            return
        if self.is_wheel:
            version = wheel.wheel_version(self.source_dir)
            wheel.check_compatibility(version, self.name)

            self.move_wheel_files(
                self.source_dir,
                root=root,
                prefix=prefix,
                home=home,
                warn_script_location=warn_script_location,
                use_user_site=use_user_site,
                pycompile=pycompile,
            )
            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 = list(global_options) + \
            self.options.get('global_options', [])
        install_options = list(install_options) + \
            self.options.get('install_options', [])

        if self.isolated:
            # https://github.com/python/mypy/issues/1174
            global_options = global_options + ["--no-user-cfg"]  # type: ignore

        with TempDirectory(kind="record") as temp_dir:
            record_filename = os.path.join(temp_dir.path, 'install-record.txt')
            install_args = self.get_install_args(
                global_options,
                record_filename,
                root,
                prefix,
                pycompile,
            )
            msg = 'Running setup.py install for %s' % (self.name, )
            with open_spinner(msg) as spinner:
                with indent_log():
                    with self.build_env:
                        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

            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))
            new_lines.sort()
            ensure_dir(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')
Example #17
0
    def __init__(
            self,
            req,  # type: Optional[Requirement]
            comes_from,  # type: Optional[Union[str, InstallRequirement]]
            source_dir=None,  # type: Optional[str]
            editable=False,  # type: bool
            link=None,  # type: Optional[Link]
            update=True,  # type: bool
            markers=None,  # type: Optional[Marker]
            use_pep517=None,  # type: Optional[bool]
            isolated=False,  # type: bool
            options=None,  # type: Optional[Dict[str, Any]]
            wheel_cache=None,  # type: Optional[WheelCache]
            constraint=False,  # type: bool
            extras=()  # type: Iterable[str]
    ):
        # type: (...) -> None
        assert req is None or isinstance(req, Requirement), req
        self.req = req
        self.comes_from = comes_from
        self.constraint = constraint
        if source_dir is not None:
            self.source_dir = os.path.normpath(os.path.abspath(source_dir))
        else:
            self.source_dir = None
        self.editable = editable

        self._wheel_cache = wheel_cache
        if link is None and req and req.url:
            # PEP 508 URL requirement
            link = Link(req.url)
        self.link = self.original_link = link

        if extras:
            self.extras = extras
        elif req:
            self.extras = {
                pkg_resources.safe_extra(extra)
                for extra in req.extras
            }
        else:
            self.extras = set()
        if markers is None and req:
            markers = req.marker
        self.markers = markers

        self._egg_info_path = None  # type: Optional[str]
        # 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 = TempDirectory(kind="req-build")
        # 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  # type: Optional[str]
        # True if the editable should be updated:
        self.update = update
        # Set to True after successful installation
        self.install_succeeded = None  # type: Optional[bool]
        # UninstallPathSet of uninstalled distribution (for possible rollback)
        self.uninstalled_pathset = None
        self.options = options if options else {}
        # Set to True after successful preparation of this requirement
        self.prepared = False
        self.is_direct = False

        self.isolated = isolated
        self.build_env = NoOpBuildEnvironment()  # type: BuildEnvironment

        # For PEP 517, the directory where we request the project metadata
        # gets stored. We need this to pass to build_wheel, so the backend
        # can ensure that the wheel matches the metadata (see the PEP for
        # details).
        self.metadata_directory = None  # type: Optional[str]

        # The static build requirements (from pyproject.toml)
        self.pyproject_requires = None  # type: Optional[List[str]]

        # Build requirements that we will check are available
        self.requirements_to_check = []  # type: List[str]

        # The PEP 517 backend we should use to build the project
        self.pep517_backend = None  # type: Optional[Pep517HookCaller]

        # Are we using PEP 517 for this requirement?
        # After pyproject.toml has been loaded, the only valid values are True
        # and False. Before loading, None is valid (meaning "use the default").
        # Setting an explicit value before loading pyproject.toml is supported,
        # but after loading this flag should be treated as read only.
        self.use_pep517 = use_pep517
Example #18
0
class InstallRequirement(object):
    """
    Represents something that may be installed later on, may have information
    about where to fetch the relavant requirement and also contains logic for
    installing the said requirement.
    """
    def __init__(
            self,
            req,  # type: Optional[Requirement]
            comes_from,  # type: Optional[Union[str, InstallRequirement]]
            source_dir=None,  # type: Optional[str]
            editable=False,  # type: bool
            link=None,  # type: Optional[Link]
            update=True,  # type: bool
            markers=None,  # type: Optional[Marker]
            use_pep517=None,  # type: Optional[bool]
            isolated=False,  # type: bool
            options=None,  # type: Optional[Dict[str, Any]]
            wheel_cache=None,  # type: Optional[WheelCache]
            constraint=False,  # type: bool
            extras=()  # type: Iterable[str]
    ):
        # type: (...) -> None
        assert req is None or isinstance(req, Requirement), req
        self.req = req
        self.comes_from = comes_from
        self.constraint = constraint
        if source_dir is not None:
            self.source_dir = os.path.normpath(os.path.abspath(source_dir))
        else:
            self.source_dir = None
        self.editable = editable

        self._wheel_cache = wheel_cache
        if link is None and req and req.url:
            # PEP 508 URL requirement
            link = Link(req.url)
        self.link = self.original_link = link

        if extras:
            self.extras = extras
        elif req:
            self.extras = {
                pkg_resources.safe_extra(extra)
                for extra in req.extras
            }
        else:
            self.extras = set()
        if markers is None and req:
            markers = req.marker
        self.markers = markers

        self._egg_info_path = None  # type: Optional[str]
        # 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 = TempDirectory(kind="req-build")
        # 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  # type: Optional[str]
        # True if the editable should be updated:
        self.update = update
        # Set to True after successful installation
        self.install_succeeded = None  # type: Optional[bool]
        # UninstallPathSet of uninstalled distribution (for possible rollback)
        self.uninstalled_pathset = None
        self.options = options if options else {}
        # Set to True after successful preparation of this requirement
        self.prepared = False
        self.is_direct = False

        self.isolated = isolated
        self.build_env = NoOpBuildEnvironment()  # type: BuildEnvironment

        # For PEP 517, the directory where we request the project metadata
        # gets stored. We need this to pass to build_wheel, so the backend
        # can ensure that the wheel matches the metadata (see the PEP for
        # details).
        self.metadata_directory = None  # type: Optional[str]

        # The static build requirements (from pyproject.toml)
        self.pyproject_requires = None  # type: Optional[List[str]]

        # Build requirements that we will check are available
        self.requirements_to_check = []  # type: List[str]

        # The PEP 517 backend we should use to build the project
        self.pep517_backend = None  # type: Optional[Pep517HookCaller]

        # Are we using PEP 517 for this requirement?
        # After pyproject.toml has been loaded, the only valid values are True
        # and False. Before loading, None is valid (meaning "use the default").
        # Setting an explicit value before loading pyproject.toml is supported,
        # but after loading this flag should be treated as read only.
        self.use_pep517 = use_pep517

    def __str__(self):
        if self.req:
            s = str(self.req)
            if self.link:
                s += ' from %s' % redact_password_from_url(self.link.url)
        elif self.link:
            s = redact_password_from_url(self.link.url)
        else:
            s = '<InstallRequirement>'
        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):
        # type: (PackageFinder, bool, bool) -> None
        """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.get(self.link, self.name)
            if old_link != self.link:
                logger.debug('Using cached wheel link: %s', self.link)

    # Things that are valid for all kinds of requirements?
    @property
    def name(self):
        # type: () -> Optional[str]
        if self.req is None:
            return None
        return native_str(pkg_resources.safe_name(self.req.name))

    @property
    def specifier(self):
        # type: () -> SpecifierSet
        return self.req.specifier

    @property
    def is_pinned(self):
        # type: () -> bool
        """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 {'==', '==='})

    @property
    def installed_version(self):
        return get_installed_version(self.name)

    def match_markers(self, extras_requested=None):
        # type: (Optional[Iterable[str]]) -> bool
        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

    @property
    def has_hash_options(self):
        # type: () -> bool
        """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):
        # type: (bool) -> Hashes
        """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 from_path(self):
        # type: () -> Optional[str]
        """Format a nice indicator to show where this "comes from"
        """
        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):
        # type: (str) -> Optional[str]
        assert build_dir is not None
        if self._temp_build_dir.path is not None:
            return self._temp_build_dir.path
        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.create()
            self._ideal_build_dir = build_dir

            return self._temp_build_dir.path
        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):
        # type: () -> None
        """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.run_egg_info 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.path
        assert (self._ideal_build_dir is not None
                and self._ideal_build_dir.path)  # type: ignore
        old_location = self._temp_build_dir.path
        self._temp_build_dir.path = 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.path = new_location
        self._ideal_build_dir = None
        self.source_dir = os.path.normpath(os.path.abspath(new_location))
        self._egg_info_path = None

        # Correct the metadata directory, if it exists
        if self.metadata_directory:
            old_meta = self.metadata_directory
            rel = os.path.relpath(old_meta, start=old_location)
            new_meta = os.path.join(new_location, rel)
            new_meta = os.path.normpath(os.path.abspath(new_meta))
            self.metadata_directory = new_meta

    def remove_temporary_source(self):
        # type: () -> None
        """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
        self._temp_build_dir.cleanup()
        self.build_env.cleanup()

    def check_if_exists(self, use_user_site):
        # type: (bool) -> bool
        """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 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

    # Things valid for wheels
    @property
    def is_wheel(self):
        # type: () -> bool
        if not self.link:
            return False
        return self.link.is_wheel

    def move_wheel_files(
            self,
            wheeldir,  # type: str
            root=None,  # type: Optional[str]
            home=None,  # type: Optional[str]
            prefix=None,  # type: Optional[str]
            warn_script_location=True,  # type: bool
            use_user_site=False,  # type: bool
            pycompile=True  # type: bool
    ):
        # type: (...) -> None
        move_wheel_files(
            self.name,
            self.req,
            wheeldir,
            user=use_user_site,
            home=home,
            root=root,
            prefix=prefix,
            pycompile=pycompile,
            isolated=self.isolated,
            warn_script_location=warn_script_location,
        )

    # Things valid for sdists
    @property
    def setup_py_dir(self):
        # type: () -> str
        return os.path.join(
            self.source_dir, self.link and self.link.subdirectory_fragment
            or '')

    @property
    def setup_py(self):
        # type: () -> str
        assert self.source_dir, "No source dir for %s" % self

        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

    @property
    def pyproject_toml(self):
        # type: () -> str
        assert self.source_dir, "No source dir for %s" % self

        return make_pyproject_path(self.setup_py_dir)

    def load_pyproject_toml(self):
        # type: () -> None
        """Load the pyproject.toml file.

        After calling this routine, all of the attributes related to PEP 517
        processing for this requirement have been set. In particular, the
        use_pep517 attribute can be used to determine whether we should
        follow the PEP 517 or legacy (setup.py) code path.
        """
        pep517_data = load_pyproject_toml(self.use_pep517, self.pyproject_toml,
                                          self.setup_py, str(self))

        if pep517_data is None:
            self.use_pep517 = False
        else:
            self.use_pep517 = True
            requires, backend, check = pep517_data
            self.requirements_to_check = check
            self.pyproject_requires = requires
            self.pep517_backend = Pep517HookCaller(self.setup_py_dir, backend)

            # Use a custom function to call subprocesses
            self.spin_message = ""

            def runner(cmd, cwd=None, extra_environ=None):
                with open_spinner(self.spin_message) as spinner:
                    call_subprocess(cmd,
                                    cwd=cwd,
                                    extra_environ=extra_environ,
                                    show_stdout=False,
                                    spinner=spinner)
                self.spin_message = ""

            self.pep517_backend._subprocess_runner = runner

    def prepare_metadata(self):
        # type: () -> None
        """Ensure that project metadata is available.

        Under PEP 517, call the backend hook to prepare the metadata.
        Under legacy processing, call setup.py egg-info.
        """
        assert self.source_dir

        with indent_log():
            if self.use_pep517:
                self.prepare_pep517_metadata()
            else:
                self.run_egg_info()

        if not self.req:
            if isinstance(parse_version(self.metadata["Version"]), Version):
                op = "=="
            else:
                op = "==="
            self.req = Requirement("".join([
                self.metadata["Name"],
                op,
                self.metadata["Version"],
            ]))
            self._correct_build_location()
        else:
            metadata_name = canonicalize_name(self.metadata["Name"])
            if canonicalize_name(self.req.name) != metadata_name:
                logger.warning(
                    'Generating metadata for package %s '
                    'produced metadata for project name %s. Fix your '
                    '#egg=%s fragments.', self.name, metadata_name, self.name)
                self.req = Requirement(metadata_name)

    def prepare_pep517_metadata(self):
        # type: () -> None
        assert self.pep517_backend is not None

        metadata_dir = os.path.join(self.setup_py_dir, 'pip-wheel-metadata')
        ensure_dir(metadata_dir)

        with self.build_env:
            # Note that Pep517HookCaller implements a fallback for
            # prepare_metadata_for_build_wheel, so we don't have to
            # consider the possibility that this hook doesn't exist.
            backend = self.pep517_backend
            self.spin_message = "Preparing wheel metadata"
            distinfo_dir = backend.prepare_metadata_for_build_wheel(
                metadata_dir)

        self.metadata_directory = os.path.join(metadata_dir, distinfo_dir)

    def run_egg_info(self):
        # type: () -> None
        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,
            )
        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 = []  # type: List[str]
        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']
        with self.build_env:
            call_subprocess(egg_info_cmd + egg_base_option,
                            cwd=self.setup_py_dir,
                            show_stdout=False,
                            command_desc='python setup.py egg_info')

    @property
    def egg_info_path(self):
        # type: () -> str
        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("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=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 self._egg_info_path

    @property
    def metadata(self):
        if not hasattr(self, '_metadata'):
            self._metadata = get_metadata(self.get_dist())

        return self._metadata

    def get_dist(self):
        # type: () -> Distribution
        """Return a pkg_resources.Distribution for this requirement"""
        if self.metadata_directory:
            base_dir, distinfo = os.path.split(self.metadata_directory)
            metadata = pkg_resources.PathMetadata(base_dir,
                                                  self.metadata_directory)
            dist_name = os.path.splitext(distinfo)[0]
            typ = pkg_resources.DistInfoDistribution
        else:
            egg_info = self.egg_info_path.rstrip(os.path.sep)
            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]
            # https://github.com/python/mypy/issues/1174
            typ = pkg_resources.Distribution  # type: ignore

        return typ(
            base_dir,
            project_name=dist_name,
            metadata=metadata,
        )

    def assert_source_matches_version(self):
        # type: () -> None
        assert self.source_dir
        version = self.metadata['version']
        if self.req.specifier and version not in self.req.specifier:
            logger.warning(
                'Requested %s, but installing version %s',
                self,
                version,
            )
        else:
            logger.debug(
                'Source in %s has version %s, which satisfies requirement %s',
                display_path(self.source_dir),
                version,
                self,
            )

    # For both source distributions and editables
    def ensure_has_source_dir(self, parent_dir):
        # type: (str) -> str
        """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

    # For editable installations
    def install_editable(
            self,
            install_options,  # type: List[str]
            global_options=(),  # type: Sequence[str]
            prefix=None  # type: Optional[str]
    ):
        # type: (...) -> 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={}'.format(prefix)]
            install_options = list(install_options) + prefix_param

        with indent_log():
            # FIXME: should we do --install-headers here too?
            with self.build_env:
                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 update_editable(self, obtain=True):
        # type: (bool) -> None
        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))

    # Top-level Actions
    def uninstall(self,
                  auto_confirm=False,
                  verbose=False,
                  use_user_site=False):
        # type: (bool, bool, bool) -> Optional[UninstallPathSet]
        """
        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(use_user_site):
            logger.warning("Skipping %s as it is not installed.", self.name)
            return None
        dist = self.satisfied_by or self.conflicts_with

        uninstalled_pathset = UninstallPathSet.from_dist(dist)
        uninstalled_pathset.remove(auto_confirm, verbose)
        return uninstalled_pathset

    def _clean_zip_name(self, name, prefix):  # only used by archive.
        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 _get_archive_name(self, path, parentdir, rootdir):
        # type: (str, str, str) -> str
        path = os.path.join(parentdir, path)
        name = self._clean_zip_name(path, rootdir)
        return self.name + '/' + name

    # TODO: Investigate if this should be kept in InstallRequirement
    #       Seems to be used only when VCS + downloads
    def archive(self, build_dir):
        # type: (str) -> None
        assert self.source_dir
        create_archive = True
        archive_name = '%s-%s.zip' % (self.name, self.metadata["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:
                    dir_arcname = self._get_archive_name(dirname,
                                                         parentdir=dirpath,
                                                         rootdir=dir)
                    zipdir = zipfile.ZipInfo(dir_arcname + '/')
                    zipdir.external_attr = 0x1ED << 16  # 0o755
                    zip.writestr(zipdir, '')
                for filename in filenames:
                    if filename == PIP_DELETE_MARKER_FILENAME:
                        continue
                    file_arcname = self._get_archive_name(filename,
                                                          parentdir=dirpath,
                                                          rootdir=dir)
                    filename = os.path.join(dirpath, filename)
                    zip.write(filename, file_arcname)
            zip.close()
            logger.info('Saved %s', display_path(archive_path))

    def install(
            self,
            install_options,  # type: List[str]
            global_options=None,  # type: Optional[Sequence[str]]
            root=None,  # type: Optional[str]
            home=None,  # type: Optional[str]
            prefix=None,  # type: Optional[str]
            warn_script_location=True,  # type: bool
            use_user_site=False,  # type: bool
            pycompile=True  # type: bool
    ):
        # type: (...) -> None
        global_options = global_options if global_options is not None else []
        if self.editable:
            self.install_editable(
                install_options,
                global_options,
                prefix=prefix,
            )
            return
        if self.is_wheel:
            version = wheel.wheel_version(self.source_dir)
            wheel.check_compatibility(version, self.name)

            self.move_wheel_files(
                self.source_dir,
                root=root,
                prefix=prefix,
                home=home,
                warn_script_location=warn_script_location,
                use_user_site=use_user_site,
                pycompile=pycompile,
            )
            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 = list(global_options) + \
            self.options.get('global_options', [])
        install_options = list(install_options) + \
            self.options.get('install_options', [])

        if self.isolated:
            # https://github.com/python/mypy/issues/1174
            global_options = global_options + ["--no-user-cfg"]  # type: ignore

        with TempDirectory(kind="record") as temp_dir:
            record_filename = os.path.join(temp_dir.path, 'install-record.txt')
            install_args = self.get_install_args(
                global_options,
                record_filename,
                root,
                prefix,
                pycompile,
            )
            msg = 'Running setup.py install for %s' % (self.name, )
            with open_spinner(msg) as spinner:
                with indent_log():
                    with self.build_env:
                        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

            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))
            new_lines.sort()
            ensure_dir(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')

    def get_install_args(
            self,
            global_options,  # type: Sequence[str]
            record_filename,  # type: str
            root,  # type: Optional[str]
            prefix,  # type: Optional[str]
            pycompile  # type: bool
    ):
        # type: (...) -> List[str]
        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]
        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 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