示例#1
0
    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
示例#2
0
    def locate_files(self):
        # FIXME: duplicates code from prepare_files; relevant code should
        #        probably be factored out into a separate method
        unnamed = list(self.unnamed_requirements)
        reqs = list(self.requirements.values())
        while reqs or unnamed:
            if unnamed:
                req_to_install = unnamed.pop(0)
            else:
                req_to_install = reqs.pop(0)
            install_needed = True
            if not self.ignore_installed and not req_to_install.editable:
                req_to_install.check_if_exists()
                if req_to_install.satisfied_by:
                    if self.upgrade:
                        # don't uninstall conflict if user install and and
                        # conflict is not user install
                        if not (self.use_user_site
                                and not dist_in_usersite(
                                    req_to_install.satisfied_by
                                )):
                            req_to_install.conflicts_with = \
                                req_to_install.satisfied_by
                        req_to_install.satisfied_by = None
                    else:
                        install_needed = False
                if req_to_install.satisfied_by:
                    logger.notify('Requirement already satisfied '
                                  '(use --upgrade to upgrade): %s'
                                  % req_to_install)

            if req_to_install.editable:
                if req_to_install.source_dir is None:
                    req_to_install.source_dir = req_to_install.build_location(
                        self.src_dir
                    )
            elif install_needed:
                req_to_install.source_dir = req_to_install.build_location(
                    self.build_dir,
                    not self.is_download,
                )

            if (req_to_install.source_dir is not None
                    and not os.path.isdir(req_to_install.source_dir)):
                raise InstallationError(
                    'Could not install requirement %s because source folder %s'
                    ' does not exist (perhaps --no-download was used without '
                    'first running an equivalent install with --no-install?)' %
                    (req_to_install, req_to_install.source_dir)
                )
    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
    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)

        pip_egg_info_path = os.path.join(dist.location,
                                         dist.egg_name()) + '.egg-info'
        dist_info_path = os.path.join(dist.location,
                                      '-'.join(dist.egg_name().split('-')[:2])
                                      ) + '.dist-info'
        # Workaround - http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=618367
        debian_egg_info_path = pip_egg_info_path.replace(
            '-py%s' % pkg_resources.PY_MAJOR, '')
        easy_install_egg = dist.egg_name() + '.egg'
        develop_egg_link = egg_link_path(dist)

        pip_egg_info_exists = os.path.exists(pip_egg_info_path)
        debian_egg_info_exists = os.path.exists(debian_egg_info_path)
        dist_info_exists = os.path.exists(dist_info_path)
        if pip_egg_info_exists or debian_egg_info_exists:
            # package installed by pip
            if pip_egg_info_exists:
                egg_info_path = pip_egg_info_path
            else:
                egg_info_path = debian_egg_info_path
            paths_to_remove.add(egg_info_path)
            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(egg_info_path, 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 dist.location.endswith(easy_install_egg):
            # package installed by easy_install
            paths_to_remove.add(dist.location)
            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 develop_egg_link:
            # develop egg
            fh = open(develop_egg_link, 'r')
            link_pointer = os.path.normcase(fh.readline().strip())
            fh.close()
            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 dist_info_exists:
            for path in pip.wheel.uninstallation_paths(dist):
                paths_to_remove.add(path)

        # 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 sys.platform == 'win32':
                    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 sys.platform == 'win32':
                        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
示例#5
0
    def prepare_files(self, finder, force_root_egg_info=False, bundle=False):

        """Prepare process. Create temp directories, download and/or unpack files."""
        unnamed = list(self.unnamed_requirements)
        reqs = list(self.requirements.values())
        while reqs or unnamed:
            if unnamed:
                req_to_install = unnamed.pop(0)
            else:
                req_to_install = reqs.pop(0)
            install = True
            best_installed = False
            not_found = None
            if not self.ignore_installed and not req_to_install.editable:
                req_to_install.check_if_exists()

                if req_to_install.satisfied_by:

                    substitute = self.install_req_checker.get_available_substitute(req_to_install)

                    # if the req_to_install is identified as the best available substitue
                    # AND
                    # ( no version with req_to_install.name has been installed
                    # OR a different version of req_to_install.name has been installed
                    # )
                    # then set the self.upgrade flag to True to install req_to_install

                    if req_to_install == substitute.requirement and (
                        req_to_install.name not in self.install_req_checker.pre_installed
                        or self.install_req_checker.pre_installed[req_to_install.name].requirement is not req_to_install
                    ):
                        self.upgrade = True

                    if self.upgrade:
                        if not self.force_reinstall and not req_to_install.url:
                            try:
                                url = finder.find_requirement(req_to_install, self.upgrade)
                            except BestVersionAlreadyInstalled:
                                best_installed = True
                                install = False
                            except DistributionNotFound:
                                not_found = sys.exc_info()[1]
                            else:
                                # Avoid the need to call find_requirement again
                                req_to_install.url = url.url

                        if not best_installed:
                            # don't uninstall conflict if user install and conflict is not user install
                            if not (self.use_user_site and not dist_in_usersite(req_to_install.satisfied_by)):
                                req_to_install.conflicts_with = req_to_install.satisfied_by
                            req_to_install.satisfied_by = None
                    else:
                        install = False
                if req_to_install.satisfied_by:
                    if best_installed:
                        logger.notify("Requirement already up-to-date: %s" % req_to_install)
                    else:
                        logger.notify(
                            "Requirement already satisfied " "(use --upgrade to upgrade): %s" % req_to_install
                        )
            if req_to_install.editable:
                logger.notify("Obtaining %s" % req_to_install)
            elif install:
                logger.notify("Downloading/unpacking %s" % req_to_install)
            logger.indent += 2
            try:
                is_bundle = False
                if req_to_install.editable:
                    if req_to_install.source_dir is None:
                        location = req_to_install.build_location(self.src_dir)
                        req_to_install.source_dir = location
                    else:
                        location = req_to_install.source_dir
                    if not os.path.exists(self.build_dir):
                        _make_build_dir(self.build_dir)
                    req_to_install.update_editable(not self.is_download)
                    if self.is_download:
                        req_to_install.run_egg_info()
                        req_to_install.archive(self.download_dir)
                    else:
                        req_to_install.run_egg_info()
                elif install:
                    ##@@ if filesystem packages are not marked
                    ##editable in a req, a non deterministic error
                    ##occurs when the script attempts to unpack the
                    ##build directory

                    # NB: This call can result in the creation of a temporary build directory
                    location = req_to_install.build_location(self.build_dir, not self.is_download)

                    ## FIXME: is the existance of the checkout good enough to use it?  I don't think so.
                    unpack = True
                    url = None
                    if not os.path.exists(os.path.join(location, "setup.py")):
                        ## FIXME: this won't upgrade when there's an existing package unpacked in `location`
                        if req_to_install.url is None:
                            if not_found:
                                raise not_found
                            url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
                        else:
                            ## FIXME: should req_to_install.url already be a link?
                            url = Link(req_to_install.url)
                            assert url
                        if url:
                            try:
                                self.unpack_url(url, location, self.is_download)
                            except HTTPError:
                                e = sys.exc_info()[1]
                                logger.fatal(
                                    "Could not install requirement %s because of error %s" % (req_to_install, e)
                                )
                                raise InstallationError(
                                    "Could not install requirement %s because of HTTP error %s for URL %s"
                                    % (req_to_install, e, url)
                                )
                        else:
                            unpack = False
                    if unpack:
                        is_bundle = req_to_install.is_bundle
                        if is_bundle:
                            req_to_install.move_bundle_files(self.build_dir, self.src_dir)
                            for subreq in req_to_install.bundle_requirements():
                                reqs.append(subreq)
                                self.add_requirement(subreq)
                        elif self.is_download:
                            req_to_install.source_dir = location
                            req_to_install.run_egg_info()
                            if url and url.scheme in vcs.all_schemes:
                                req_to_install.archive(self.download_dir)
                        else:
                            req_to_install.source_dir = location
                            req_to_install.run_egg_info()
                            if force_root_egg_info:
                                # We need to run this to make sure that the .egg-info/
                                # directory is created for packing in the bundle
                                req_to_install.run_egg_info(force_root_egg_info=True)
                            req_to_install.assert_source_matches_version()
                            # @@ sketchy way of identifying packages not grabbed from an index
                            if bundle and req_to_install.url:
                                self.copy_to_build_dir(req_to_install)
                                install = False
                            # req_to_install.req is only avail after unpack for URL pkgs
                        # repeat check_if_exists to uninstall-on-upgrade (#14)
                        req_to_install.check_if_exists()
                        if req_to_install.satisfied_by:
                            if self.upgrade or self.ignore_installed:
                                # don't uninstall conflict if user install and and conflict is not user install
                                if not (self.use_user_site and not dist_in_usersite(req_to_install.satisfied_by)):
                                    req_to_install.conflicts_with = req_to_install.satisfied_by
                                req_to_install.satisfied_by = None
                            else:
                                install = False
                if not is_bundle:
                    ## FIXME: shouldn't be globally added:
                    finder.add_dependency_links(req_to_install.dependency_links)
                    if req_to_install.extras:
                        logger.notify("Installing extra requirements: %r" % ",".join(req_to_install.extras))
                    if not self.ignore_dependencies:
                        for req in req_to_install.requirements(req_to_install.extras):
                            try:
                                name = pkg_resources.Requirement.parse(req).project_name
                            except ValueError:
                                e = sys.exc_info()[1]
                                ## FIXME: proper warning
                                logger.error(
                                    "Invalid requirement: %r (%s) in requirement %s" % (req, e, req_to_install)
                                )
                                continue
                            if self.has_requirement(name):
                                ## FIXME: check for conflict
                                continue
                            subreq = InstallRequirement(req, req_to_install)
                            reqs.append(subreq)
                            self.add_requirement(subreq)
                        if req_to_install.editable and req_to_install.source_dir:
                            for subreq in self.install_requirements_txt(req_to_install):
                                if self.add_requirement(subreq):
                                    reqs.append(subreq)
                    if not self.has_requirement(req_to_install.name):
                        #'unnamed' requirements will get added here
                        self.add_requirement(req_to_install)
                    if self.is_download or req_to_install._temp_build_dir is not None:
                        self.reqs_to_cleanup.append(req_to_install)
                else:
                    self.reqs_to_cleanup.append(req_to_install)

                if install:
                    self.successfully_downloaded.append(req_to_install)
                    if bundle and (req_to_install.url and req_to_install.url.startswith("file:///")):
                        self.copy_to_build_dir(req_to_install)
            finally:
                logger.indent -= 2
示例#6
0
    def prepare_files(self, finder, force_root_egg_info=False, bundle=False):
        """
        Prepare process. Create temp directories, download and/or unpack files.
        """
        unnamed = list(self.unnamed_requirements)
        reqs = list(self.requirements.values())
        while reqs or unnamed:
            if unnamed:
                req_to_install = unnamed.pop(0)
            else:
                req_to_install = reqs.pop(0)
            install = True
            best_installed = False
            not_found = None

            # ############################################# #
            # # Search for archive to fulfill requirement # #
            # ############################################# #

            if not self.ignore_installed and not req_to_install.editable:
                req_to_install.check_if_exists()
                if req_to_install.satisfied_by:
                    if self.upgrade:
                        if not self.force_reinstall and not req_to_install.url:
                            try:
                                url = finder.find_requirement(
                                    req_to_install, self.upgrade)
                            except BestVersionAlreadyInstalled:
                                best_installed = True
                                install = False
                            except DistributionNotFound as exc:
                                not_found = exc
                            else:
                                # Avoid the need to call find_requirement again
                                req_to_install.url = url.url

                        if not best_installed:
                            # don't uninstall conflict if user install and
                            # conflict is not user install
                            if not (self.use_user_site
                                    and not dist_in_usersite(
                                        req_to_install.satisfied_by
                                    )):
                                req_to_install.conflicts_with = \
                                    req_to_install.satisfied_by
                            req_to_install.satisfied_by = None
                    else:
                        install = False
                if req_to_install.satisfied_by:
                    if best_installed:
                        logger.notify('Requirement already up-to-date: %s'
                                      % req_to_install)
                    else:
                        logger.notify('Requirement already satisfied '
                                      '(use --upgrade to upgrade): %s'
                                      % req_to_install)
            if req_to_install.editable:
                logger.notify('Obtaining %s' % req_to_install)
            elif install:
                if (req_to_install.url
                        and req_to_install.url.lower().startswith('file:')):
                    logger.notify(
                        'Unpacking %s' %
                        display_path(url_to_path(req_to_install.url))
                    )
                else:
                    logger.notify('Downloading/unpacking %s' % req_to_install)
            logger.indent += 2

            # ################################ #
            # # vcs update or unpack archive # #
            # ################################ #

            try:
                is_bundle = False
                is_wheel = False
                if req_to_install.editable:
                    if req_to_install.source_dir is None:
                        location = req_to_install.build_location(self.src_dir)
                        req_to_install.source_dir = location
                    else:
                        location = req_to_install.source_dir
                    if not os.path.exists(self.build_dir):
                        _make_build_dir(self.build_dir)
                    req_to_install.update_editable(not self.is_download)
                    if self.is_download:
                        req_to_install.run_egg_info()
                        req_to_install.archive(self.download_dir)
                    else:
                        req_to_install.run_egg_info()
                elif install:
                    # @@ if filesystem packages are not marked
                    # editable in a req, a non deterministic error
                    # occurs when the script attempts to unpack the
                    # build directory

                    # NB: This call can result in the creation of a temporary
                    # build directory
                    location = req_to_install.build_location(
                        self.build_dir,
                        not self.is_download,
                    )
                    unpack = True
                    url = None

                    # In the case where the req comes from a bundle, we should
                    # assume a build dir exists and move on
                    if req_to_install.from_bundle:
                        pass
                    # If a checkout exists, it's unwise to keep going.  version
                    # inconsistencies are logged later, but do not fail the
                    # installation.
                    elif os.path.exists(os.path.join(location, 'setup.py')):
                        raise PreviousBuildDirError(
                            "pip can't proceed with requirements '%s' due to a"
                            " pre-existing buld directory (%s). This is likely"
                            " due to a previous installation that failed. pip "
                            "is being responsible and not assuming it can "
                            "delete this. Please delete it and try again." %
                            (req_to_install, location)
                        )
                    else:
                        # FIXME: this won't upgrade when there's an existing
                        # package unpacked in `location`
                        if req_to_install.url is None:
                            if not_found:
                                raise not_found
                            url = finder.find_requirement(
                                req_to_install,
                                upgrade=self.upgrade,
                            )
                        else:
                            # FIXME: should req_to_install.url already be a
                            # link?
                            url = Link(req_to_install.url)
                            assert url
                        if url:
                            try:

                                if (
                                    url.filename.endswith(wheel_ext)
                                    and self.wheel_download_dir
                                ):
                                    # when doing 'pip wheel`
                                    download_dir = self.wheel_download_dir
                                    do_download = True
                                else:
                                    download_dir = self.download_dir
                                    do_download = self.is_download
                                self.unpack_url(
                                    url, location, download_dir,
                                    do_download,
                                )
                            except HTTPError as exc:
                                logger.fatal(
                                    'Could not install requirement %s because '
                                    'of error %s' % (req_to_install, exc)
                                )
                                raise InstallationError(
                                    'Could not install requirement %s because '
                                    'of HTTP error %s for URL %s' %
                                    (req_to_install, exc, url)
                                )
                        else:
                            unpack = False
                    if unpack:
                        is_bundle = req_to_install.is_bundle
                        is_wheel = url and url.filename.endswith(wheel_ext)
                        if is_bundle:
                            req_to_install.move_bundle_files(
                                self.build_dir,
                                self.src_dir,
                            )
                            for subreq in req_to_install.bundle_requirements():
                                reqs.append(subreq)
                                self.add_requirement(subreq)
                        elif self.is_download:
                            req_to_install.source_dir = location
                            if not is_wheel:
                                # FIXME:https://github.com/pypa/pip/issues/1112
                                req_to_install.run_egg_info()
                            if url and url.scheme in vcs.all_schemes:
                                req_to_install.archive(self.download_dir)
                        elif is_wheel:
                            req_to_install.source_dir = location
                            req_to_install.url = url.url
                        else:
                            req_to_install.source_dir = location
                            req_to_install.run_egg_info()
                            if force_root_egg_info:
                                # We need to run this to make sure that the
                                # .egg-info/ directory is created for packing
                                # in the bundle
                                req_to_install.run_egg_info(
                                    force_root_egg_info=True,
                                )
                            req_to_install.assert_source_matches_version()
                            # @@ sketchy way of identifying packages not
                            # grabbed from an index
                            if bundle and req_to_install.url:
                                self.copy_to_build_dir(req_to_install)
                                install = False
                        # req_to_install.req is only avail after unpack for URL
                        # pkgs repeat check_if_exists to uninstall-on-upgrade
                        # (#14)
                        if not self.ignore_installed:
                            req_to_install.check_if_exists()
                        if req_to_install.satisfied_by:
                            if self.upgrade or self.ignore_installed:
                                # don't uninstall conflict if user install and
                                # conflict is not user install
                                if not (self.use_user_site
                                        and not dist_in_usersite(
                                            req_to_install.satisfied_by)):
                                    req_to_install.conflicts_with = \
                                        req_to_install.satisfied_by
                                req_to_install.satisfied_by = None
                            else:
                                logger.notify(
                                    'Requirement already satisfied (use '
                                    '--upgrade to upgrade): %s' %
                                    req_to_install
                                )
                                install = False

                # ###################### #
                # # parse dependencies # #
                # ###################### #

                if is_wheel:
                    dist = list(
                        pkg_resources.find_distributions(location)
                    )[0]
                    if not req_to_install.req:
                        req_to_install.req = dist.as_requirement()
                        self.add_requirement(req_to_install)
                    if not self.ignore_dependencies:
                        for subreq in dist.requires(
                                req_to_install.extras):
                            if self.has_requirement(
                                    subreq.project_name):
                                continue
                            subreq = InstallRequirement(str(subreq),
                                                        req_to_install)
                            reqs.append(subreq)
                            self.add_requirement(subreq)

                # sdists
                elif not is_bundle:
                    if (req_to_install.extras):
                        logger.notify(
                            "Installing extra requirements: %r" %
                            ','.join(req_to_install.extras)
                        )
                    if not self.ignore_dependencies:
                        for req in req_to_install.requirements(
                                req_to_install.extras):
                            try:
                                name = pkg_resources.Requirement.parse(
                                    req
                                ).project_name
                            except ValueError as exc:
                                # FIXME: proper warning
                                logger.error(
                                    'Invalid requirement: %r (%s) in '
                                    'requirement %s' %
                                    (req, exc, req_to_install)
                                )
                                continue
                            if self.has_requirement(name):
                                # FIXME: check for conflict
                                continue
                            subreq = InstallRequirement(req, req_to_install)
                            reqs.append(subreq)
                            self.add_requirement(subreq)
                    if not self.has_requirement(req_to_install.name):
                        # 'unnamed' requirements will get added here
                        self.add_requirement(req_to_install)

                # cleanup tmp src
                if not is_bundle:
                    if (
                        self.is_download or
                        req_to_install._temp_build_dir is not None
                    ):
                        self.reqs_to_cleanup.append(req_to_install)
                if install:
                    self.successfully_downloaded.append(req_to_install)
                    if (bundle
                            and (
                                req_to_install.url
                                and req_to_install.url.startswith('file:///')
                            )):
                        self.copy_to_build_dir(req_to_install)
            finally:
                logger.indent -= 2
示例#7
0
    def prepare_files(self, finder, force_root_egg_info=False, bundle=False):
        """Prepare process. Create temp directories, download and/or unpack files."""
        unnamed = list(self.unnamed_requirements)
        reqs = list(self.requirements.values())
        while reqs or unnamed:
            if unnamed:
                req_to_install = unnamed.pop(0)
            else:
                req_to_install = reqs.pop(0)
            install = True
            best_installed = False
            not_found = None
            if not self.ignore_installed and not req_to_install.editable:
                req_to_install.check_if_exists()

                if req_to_install.satisfied_by:

                    substitute = self.install_req_checker.get_available_substitute(
                        req_to_install)

                    # if the req_to_install is identified as the best available substitue
                    # AND
                    # ( no version with req_to_install.name has been installed
                    # OR a different version of req_to_install.name has been installed
                    # )
                    # then set the self.upgrade flag to True to install req_to_install

                    if (req_to_install == substitute.requirement
                            and (req_to_install.name
                                 not in self.install_req_checker.pre_installed
                                 or self.install_req_checker.pre_installed[
                                     req_to_install.name].requirement
                                 is not req_to_install)):
                        self.upgrade = True

                    if self.upgrade:
                        if not self.force_reinstall and not req_to_install.url:
                            try:
                                url = finder.find_requirement(
                                    req_to_install, self.upgrade)
                            except BestVersionAlreadyInstalled:
                                best_installed = True
                                install = False
                            except DistributionNotFound:
                                not_found = sys.exc_info()[1]
                            else:
                                # Avoid the need to call find_requirement again
                                req_to_install.url = url.url

                        if not best_installed:
                            #don't uninstall conflict if user install and conflict is not user install
                            if not (self.use_user_site
                                    and not dist_in_usersite(
                                        req_to_install.satisfied_by)):
                                req_to_install.conflicts_with = req_to_install.satisfied_by
                            req_to_install.satisfied_by = None
                    else:
                        install = False
                if req_to_install.satisfied_by:
                    if best_installed:
                        logger.notify('Requirement already up-to-date: %s' %
                                      req_to_install)
                    else:
                        logger.notify('Requirement already satisfied '
                                      '(use --upgrade to upgrade): %s' %
                                      req_to_install)
            if req_to_install.editable:
                logger.notify('Obtaining %s' % req_to_install)
            elif install:
                logger.notify('Downloading/unpacking %s' % req_to_install)
            logger.indent += 2
            try:
                is_bundle = False
                if req_to_install.editable:
                    if req_to_install.source_dir is None:
                        location = req_to_install.build_location(self.src_dir)
                        req_to_install.source_dir = location
                    else:
                        location = req_to_install.source_dir
                    if not os.path.exists(self.build_dir):
                        _make_build_dir(self.build_dir)
                    req_to_install.update_editable(not self.is_download)
                    if self.is_download:
                        req_to_install.run_egg_info()
                        req_to_install.archive(self.download_dir)
                    else:
                        req_to_install.run_egg_info()
                elif install:
                    ##@@ if filesystem packages are not marked
                    ##editable in a req, a non deterministic error
                    ##occurs when the script attempts to unpack the
                    ##build directory

                    # NB: This call can result in the creation of a temporary build directory
                    location = req_to_install.build_location(
                        self.build_dir, not self.is_download)

                    ## FIXME: is the existance of the checkout good enough to use it?  I don't think so.
                    unpack = True
                    url = None
                    if not os.path.exists(os.path.join(location, 'setup.py')):
                        ## FIXME: this won't upgrade when there's an existing package unpacked in `location`
                        if req_to_install.url is None:
                            if not_found:
                                raise not_found
                            url = finder.find_requirement(req_to_install,
                                                          upgrade=self.upgrade)
                        else:
                            ## FIXME: should req_to_install.url already be a link?
                            url = Link(req_to_install.url)
                            assert url
                        if url:
                            try:
                                self.unpack_url(url, location,
                                                self.is_download)
                            except HTTPError:
                                e = sys.exc_info()[1]
                                logger.fatal(
                                    'Could not install requirement %s because of error %s'
                                    % (req_to_install, e))
                                raise InstallationError(
                                    'Could not install requirement %s because of HTTP error %s for URL %s'
                                    % (req_to_install, e, url))
                        else:
                            unpack = False
                    if unpack:
                        is_bundle = req_to_install.is_bundle
                        if is_bundle:
                            req_to_install.move_bundle_files(
                                self.build_dir, self.src_dir)
                            for subreq in req_to_install.bundle_requirements():
                                reqs.append(subreq)
                                self.add_requirement(subreq)
                        elif self.is_download:
                            req_to_install.source_dir = location
                            req_to_install.run_egg_info()
                            if url and url.scheme in vcs.all_schemes:
                                req_to_install.archive(self.download_dir)
                        else:
                            req_to_install.source_dir = location
                            req_to_install.run_egg_info()
                            if force_root_egg_info:
                                # We need to run this to make sure that the .egg-info/
                                # directory is created for packing in the bundle
                                req_to_install.run_egg_info(
                                    force_root_egg_info=True)
                            req_to_install.assert_source_matches_version()
                            #@@ sketchy way of identifying packages not grabbed from an index
                            if bundle and req_to_install.url:
                                self.copy_to_build_dir(req_to_install)
                                install = False
                            # req_to_install.req is only avail after unpack for URL pkgs
                        # repeat check_if_exists to uninstall-on-upgrade (#14)
                        req_to_install.check_if_exists()
                        if req_to_install.satisfied_by:
                            if self.upgrade or self.ignore_installed:
                                #don't uninstall conflict if user install and and conflict is not user install
                                if not (self.use_user_site
                                        and not dist_in_usersite(
                                            req_to_install.satisfied_by)):
                                    req_to_install.conflicts_with = req_to_install.satisfied_by
                                req_to_install.satisfied_by = None
                            else:
                                install = False
                if not is_bundle:
                    ## FIXME: shouldn't be globally added:
                    finder.add_dependency_links(
                        req_to_install.dependency_links)
                    if (req_to_install.extras):
                        logger.notify("Installing extra requirements: %r" %
                                      ','.join(req_to_install.extras))
                    if not self.ignore_dependencies:
                        for req in req_to_install.requirements(
                                req_to_install.extras):
                            try:
                                name = pkg_resources.Requirement.parse(
                                    req).project_name
                            except ValueError:
                                e = sys.exc_info()[1]
                                ## FIXME: proper warning
                                logger.error(
                                    'Invalid requirement: %r (%s) in requirement %s'
                                    % (req, e, req_to_install))
                                continue
                            if self.has_requirement(name):
                                ## FIXME: check for conflict
                                continue
                            subreq = InstallRequirement(req, req_to_install)
                            reqs.append(subreq)
                            self.add_requirement(subreq)
                        if req_to_install.editable and req_to_install.source_dir:
                            for subreq in self.install_requirements_txt(
                                    req_to_install):
                                if self.add_requirement(subreq):
                                    reqs.append(subreq)
                    if not self.has_requirement(req_to_install.name):
                        #'unnamed' requirements will get added here
                        self.add_requirement(req_to_install)
                    if self.is_download or req_to_install._temp_build_dir is not None:
                        self.reqs_to_cleanup.append(req_to_install)
                else:
                    self.reqs_to_cleanup.append(req_to_install)

                if install:
                    self.successfully_downloaded.append(req_to_install)
                    if bundle and (req_to_install.url and
                                   req_to_install.url.startswith('file:///')):
                        self.copy_to_build_dir(req_to_install)
            finally:
                logger.indent -= 2
示例#8
0
    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)

        pip_egg_info_path = os.path.join(dist.location,
                                         dist.egg_name()) + '.egg-info'
        dist_info_path = os.path.join(dist.location, '-'.join(
            dist.egg_name().split('-')[:2])) + '.dist-info'
        # Workaround - http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=618367
        debian_egg_info_path = pip_egg_info_path.replace(
            '-py%s' % pkg_resources.PY_MAJOR, '')
        easy_install_egg = dist.egg_name() + '.egg'
        develop_egg_link = egg_link_path(dist)

        pip_egg_info_exists = os.path.exists(pip_egg_info_path)
        debian_egg_info_exists = os.path.exists(debian_egg_info_path)
        dist_info_exists = os.path.exists(dist_info_path)
        if pip_egg_info_exists or debian_egg_info_exists:
            # package installed by pip
            if pip_egg_info_exists:
                egg_info_path = pip_egg_info_path
            else:
                egg_info_path = debian_egg_info_path
            paths_to_remove.add(egg_info_path)
            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(egg_info_path, 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 dist.location.endswith(easy_install_egg):
            # package installed by easy_install
            paths_to_remove.add(dist.location)
            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 develop_egg_link:
            # develop egg
            fh = open(develop_egg_link, 'r')
            link_pointer = os.path.normcase(fh.readline().strip())
            fh.close()
            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 dist_info_exists:
            for path in pip.wheel.uninstallation_paths(dist):
                paths_to_remove.add(path)

        # 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 sys.platform == 'win32':
                    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 sys.platform == 'win32':
                        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