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Editing: wrappers.cpython-38.pyc
U ��.eg) � @ s d dl Z d dlmZ d dlZd dlmZmZmZ d dl Z d dl m Z m Z m Z d dlZd dlmZ ddlmZ eeee��d�Zed d � �ZG d d � d e�ZG d d� de�ZG dd� de�ZG dd� de�Zd dd�Zd dd�Z dd� Z G dd� de �Z G dd � d e j �Z!dS ) � N)�contextmanager)�dirname�abspath�join)� check_call� check_output�STDOUT)�mkdtemp� )�compatz_in_process.pyc c s" t � } z | V W 5 t�| � X d S �N)r �shutilZrmtree)�td� r �?/usr/lib/python3.8/site-packages/pip/_vendor/pep517/wrappers.py�tempdir s r c @ s e Zd ZdZdd� ZdS )�BackendUnavailablezEWill be raised if the backend cannot be imported in the hook process.c C s || _ d S r �� traceback��selfr r r r �__init__ s zBackendUnavailable.__init__N��__name__� __module__� __qualname__�__doc__r r r r r r s r c @ s e Zd ZdZdd� ZdS )�BackendInvalidz)Will be raised if the backend is invalid.c C s || _ || _|| _d S r �� backend_name� backend_path�message)r r r r! r r r r s zBackendInvalid.__init__Nr r r r r r s r c s e Zd ZdZ� fdd�Z� ZS )� HookMissingz Will be raised on missing hooks.c s t t| ��|� || _d S r )�superr" r � hook_name)r r$ �� __class__r r r ( s zHookMissing.__init__)r r r r r � __classcell__r r r% r r" & s r" c @ s e Zd ZdZdd� ZdS )�UnsupportedOperationzDMay be raised by build_sdist if the backend indicates that it can't.c C s || _ d S r r r r r r r / s z UnsupportedOperation.__init__Nr r r r r r( - s r( c C s* t j�� }|r|�|� t| ||d� dS )z5The default method of calling the wrapper subprocess.)�cwd�envN)�os�environ�copy�updater ��cmdr) � extra_environr* r r r �default_subprocess_runner3 s r2 c C s, t j�� }|r|�|� t| ||td� dS )zDA method of calling the wrapper subprocess while suppressing output.)r) r* �stderrN)r+ r, r- r. r r r/ r r r �quiet_subprocess_runner< s r4 c C sn t j�|�rtd��t j�| �}t j�t j�||��}t j�|�}t j�|�}t j�||g�|krjtd��|S )z�Normalise and check a backend path. 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+ �path�isabs� ValueErrorr �normpathr �normcase� commonprefix)Z source_treeZ requestedZ abs_sourceZ abs_requestedZ norm_sourceZnorm_requestedr r r �norm_and_checkE s r; c @ s` e Zd ZdZddd�Zedd� �Zddd�Zdd d �Zdd d �Z ddd�Z ddd�Z dd� Z dS )�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 sB |d kr t }t|�� _|� _|r2� fdd�|D �}|� _|� _d S )Nc s g | ]}t � j|��qS r )r; � source_dir)�.0�p�r r r � <listcomp>{ s z-Pep517HookCaller.__init__.<locals>.<listcomp>)r2 r r= � build_backendr �_subprocess_runner)r r= rB r �runnerr r@ r r n s �zPep517HookCaller.__init__c c s | j }|| _ dV || _ dS )z\A context manager for temporarily overriding the default subprocess runner. N)rC )r rD �prevr r r �subprocess_runner� s z"Pep517HookCaller.subprocess_runnerc C s | � dd|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 rH r r r rG � s �z-Pep517HookCaller.get_requires_for_build_wheelTc C s | � dt|�||d��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_directoryrH �_allow_fallback�rJ r )r rM rH rN r r r rL � s �z1Pep517HookCaller.prepare_metadata_for_build_wheelc C s( |dk rt |�}| �dt |�||d��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_directoryrH rM )r rJ )r rQ rH rM r r r rP � s �z Pep517HookCaller.build_wheelc C s | � dd|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_sdistrH rI rK r r r rR � s �z-Pep517HookCaller.get_requires_for_build_sdistc C s | � dt|�|d��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_directoryrH rO )r rT rH r r r rS � s �z Pep517HookCaller.build_sdistc C s@ t jd dkr | j�d�}n| j}d|i}| jrbtj�| j�}t jd dkrZ|�t �� �}||d< t � ��}d|i}t j |t |d�dd� | j t jt||g| j|d � t �t |d ��}|�d �r�t|�d d ���|�d�r�t|�d d ���|�d��rt| j| j|�dd �d��|�d��r"t|��|d W 5 Q R � S Q R X d S )Nr � �ASCIIZPEP517_BUILD_BACKENDZPEP517_BACKEND_PATH�kwargsz input.json)�indent)r) r1 z output.jsonZ unsupportedr � Z no_backendZbackend_invalidZ backend_errorr Z hook_missingZ return_val)�sys� version_inforB �encoder r+ �pathsepr �getfilesystemencodingr r Z write_json�pjoinrC � executable�_in_proc_scriptr= Z read_json�getr( r r r" ) r r$ rW rB r1 r r Z hook_input�datar r r rJ � sB � � � zPep517HookCaller._call_hook)NN)N)NT)NN)N)N) r r r r r r rF rG rL rP rR rS rJ r r r r r< ] s � � � r< c @ s< e Zd ZdZdd� Zdd� Zedd� �Zdd � Zd d � Z d S ) � LoggerWrapperzd Read messages from a pipe and redirect them to a logger (see python's logging module). c C sH t j�| � d| _|| _|| _t�� \| _| _ t� | j�| _ | � � d S )NT) � threading�Threadr Zdaemon�logger�levelr+ �pipeZfd_read�fd_write�fdopen�reader�start)r rg rh r r r r s zLoggerWrapper.__init__c C s | j S r )rj r@ r r r �fileno s zLoggerWrapper.filenoc C s | � tj�r| d d� S | S )N���)�endswithr+ �linesep)�msgr r r �remove_newline! s z LoggerWrapper.remove_newlinec C s | j D ]}| �| �|�� qd S r )rl �_writers )r �liner r r �run% s zLoggerWrapper.runc C s | j �| j|� d S r )rg �logrh )r r! r r r rt ) s zLoggerWrapper._writeN) r r r r r rn � staticmethodrs rv rt r r r r rd s rd )NN)NN)"re � contextlibr r+ Zos.pathr r r r_ r � subprocessr r r rZ Ztempfiler rY r �__file__ra r � Exceptionr r r" r( r2 r4 r; �objectr< rf rd r r r r �<module> s* /
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