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Editing: wrappers.cpython-35.pyc
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Ensure that the requested backend path is specified as a relative path, and resolves to a location under the given source tree. Return an absolute version of the requested path. zpaths must be relativez paths must be inside source tree) r+ r �isabs� ValueErrorr �normpathr �normcase� commonprefix)� source_tree� requested� abs_source� abs_requested� norm_source�norm_requestedr r r �norm_and_checkN s ! r? c @ s� e Z d Z d Z d d d d � Z e d d � � Z d d d � Z d d d d � Z d d d d � Z d d d � Z d d d � Z d d � Z d S)�Pep517HookCallerae A wrapper around a source directory to be built with a PEP 517 backend. source_dir : The path to the source directory, containing pyproject.toml. build_backend : The build backend spec, as per PEP 517, from pyproject.toml. backend_path : The backend path, as per PEP 517, from pyproject.toml. runner : A callable that invokes the wrapper subprocess. The 'runner', if provided, must expect the following: cmd : a list of strings representing the command and arguments to execute, as would be passed to e.g. 'subprocess.check_call'. cwd : a string representing the working directory that must be used for the subprocess. Corresponds to the provided source_dir. extra_environ : a dict mapping environment variable names to values which must be set for the subprocess execution. Nc s_ | d k r t } t | � � _ | � _ | rI � f d d � | D� } | � _ | � _ d S)Nc s" g | ] } t � j | � � q Sr )r? � source_dir)�.0�p)r r r � <listcomp>� s z-Pep517HookCaller.__init__.<locals>.<listcomp>)r1 r rA � build_backendr" �_subprocess_runner)r rA rE r" �runnerr )r r r w s zPep517HookCaller.__init__c c s, | j } | | _ z d VWd | | _ Xd S)z\A context manager for temporarily overriding the default subprocess runner. N)rF )r rG �prevr r r �subprocess_runner� s z"Pep517HookCaller.subprocess_runnerc C s | j d d | i � S)aG Identify packages required for building a wheel Returns a list of dependency specifications, e.g.: ["wheel >= 0.25", "setuptools"] This does not include requirements specified in pyproject.toml. It returns the result of calling the equivalently named hook in a subprocess. � get_requires_for_build_wheel�config_settings)� _call_hook)r rK r r r rJ � s z-Pep517HookCaller.get_requires_for_build_wheelTc C s( | j d d t | � d | d | i � S)aq Prepare a *.dist-info folder with metadata for this project. Returns the name of the newly created folder. If the build backend defines a hook with this name, it will be called in a subprocess. If not, the backend will be asked to build a wheel, and the dist-info extracted from that (unless _allow_fallback is False). � prepare_metadata_for_build_wheel�metadata_directoryrK �_allow_fallback)rL r )r rN rK rO r r r rM � s z1Pep517HookCaller.prepare_metadata_for_build_wheelc C s@ | d k r t | � } | j d d t | � d | d | i � S)av Build a wheel from this project. Returns the name of the newly created file. In general, this will call the 'build_wheel' hook in the backend. However, if that was previously called by 'prepare_metadata_for_build_wheel', and the same metadata_directory is used, the previously built wheel will be copied to wheel_directory. N� build_wheel�wheel_directoryrK rN )r rL )r rQ rK rN r r r rP � s z Pep517HookCaller.build_wheelc C s | j d d | i � S)a< Identify packages required for building a wheel Returns a list of dependency specifications, e.g.: ["setuptools >= 26"] This does not include requirements specified in pyproject.toml. It returns the result of calling the equivalently named hook in a subprocess. � get_requires_for_build_sdistrK )rL )r rK r r r rR � s z-Pep517HookCaller.get_requires_for_build_sdistc C s" | j d d t | � d | i � S)z�Build an sdist from this project. Returns the name of the newly created file. This calls the 'build_sdist' backend hook in a subprocess. � build_sdist�sdist_directoryrK )rL r )r rT rK r r r rS � s z Pep517HookCaller.build_sdistc C s� t j d d k r( | j j d � } n | j } d | i } | j r� t j j | j � } t j d d k r� | j t j � � } | | d <t � �;} d | i } t j | t | d � d d �t � �8 } | j t j t | � | | g d | j d | �Wd QRXt j t | d � � } | j d � rGt | j d d � � � | j d � rnt | j d d � � � | j d � r�t d | j d | j d | j d d � � � | j d � r�t | � � | d SWd QRXd S)Nr � �ASCII�PEP517_BUILD_BACKEND�PEP517_BACKEND_PATH�kwargsz input.json�indentr) r0 z output.json� unsupportedr � � no_backend�backend_invalidr! r" r# � backend_error� hook_missing� return_val)�sys� version_inforE �encoder" r+ �pathsepr �getfilesystemencodingr r � write_jsonr r rF � executable�strrA � read_json�getr( r r r$ ) r r& rY rE r0 r" r � hook_input�script�datar r r rL � s> zPep517HookCaller._call_hook) r r r r r r rI rJ rM rP rR rS rL r r r r r@ f s r@ c @ sX e Z d Z d Z d d � Z d d � Z e d d � � Z d d � Z d d � Z d S) � LoggerWrapperzd Read messages from a pipe and redirect them to a logger (see python's logging module). c C sf t j j | � d | _ | | _ | | _ t j � \ | _ | _ t j | j � | _ | j � d S)NT) � threading�Threadr �daemon�logger�levelr+ �pipe�fd_read�fd_write�fdopen�reader�start)r rs rt r r r r s zLoggerWrapper.__init__c C s | j S)N)rw )r r r r �fileno( s zLoggerWrapper.filenoc C s$ | j t j � r | d d � S| S)Nr ���)�endswithr+ �linesep)�msgr r r �remove_newline+ s z LoggerWrapper.remove_newlinec C s. x' | j D] } | j | j | � � q Wd S)N)ry �_writer� )r �liner r r �run/ s zLoggerWrapper.runc C s | j j | j | � d S)N)rs �logrt )r r# r r r r� 3 s zLoggerWrapper._writeN) r r r r r r{ � staticmethodr� r� r� r r r r ro s ro )$rp � contextlibr r+ �os.pathr r r r r � subprocessr r r rb �tempfiler r\ r Zimportlib.resourcesr r � ImportErrorr � Exceptionr r r$ r( r1 r3 r? �objectr@ rq ro r r r r �<module> s. �
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