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편집 파일: _musllinux.cpython-39.pyc
a ��Re � @ st d Z ddlZddlZddlZddlZddlZddlZddlZddlZddl m Z m Z m Z m Z mZ e e eeedf d�dd�Ze e e e d�d d �ZG d d � d e �Zee e d �dd�Ze�� ee e d�dd��Zee e d�dd�Zedk�rpddlZe�� Z e � d��sJ d��e de � e deej �� e dd d � ee� d d e �!d d!�d" ��D ]Z"e e"d#d � �q\dS )$z�PEP 656 support. This module implements logic to detect if the currently running Python is linked against musl, and what musl version is used. � N)�IO�Iterator� NamedTuple�Optional�Tuple.)�f�fmt�returnc C s t �|| �t �|���S �N)�struct�unpack�read�calcsize)r r � r ��/builddir/build/BUILDROOT/alt-python39-pip-21.3.1-2.el8.x86_64/opt/alt/python39/lib/python3.9/site-packages/pip/_vendor/packaging/_musllinux.py�_read_unpacked s r )r r c C sh | � d� zt| d�}W n tjy. Y dS 0 |dd� td�krHdS | � t�d�d� z dd d �|d \}}}W n ty� Y dS 0 tj|� }z t| |�\}}}}}}} W n tjy� Y dS 0 t | d �D ]�} | � ||| � z|t| |��\} } } W n tj�y Y dS 0 | d k�r,q�| � | � t � | � | ��� d �}d |v�r\ dS | S dS )z�Detect musl libc location by parsing the Python executable. Based on: https://gist.github.com/lyssdod/f51579ae8d93c8657a5564aefc2ffbca ELF header: https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html r �16BN� s ELF�HHI� )�IIIIHHH�IIIIIIII)r r r )�QQQIHHH�IIQQQQQQ)r � � )r r � � �musl)�seekr r �error�tupler �KeyError�operator� itemgetter�range�os�fsdecoder �strip)r �ident�e_fmt�p_fmt�p_idx�p_get�_�e_phoff� e_phentsize�e_phnum�i�p_type�p_offset�p_filesz� interpreterr r r �_parse_ld_musl_from_elf sF �� r7 c @ s e Zd ZU eed< eed< dS )� _MuslVersion�major�minorN)�__name__� __module__� __qualname__�int�__annotations__r r r r r8 G s r8 )�outputr c C sx dd� dd� | � � D �D �}t|�dk s<|d d d� dkr@d S t�d |d �}|sXd S tt|�d ��t|�d��d �S ) Nc S s g | ] }|r|�qS r r ��.0�nr r r � <listcomp>M � z'_parse_musl_version.<locals>.<listcomp>c s s | ]}|� � V qd S r )r( rA r r r � <genexpr>M rE z&_parse_musl_version.<locals>.<genexpr>r r r r zVersion (\d+)\.(\d+)r )r9 r: )� splitlines�len�re�matchr8 r> �group)r@ �lines�mr r r �_parse_musl_versionL s rN )� executabler c C s� t �� �N}z|�t| d��}W n ty> Y W d � dS 0 t|�}W d � n1 s\0 Y |sndS tj|gtjdd�}t |j �S )a` Detect currently-running musl runtime version. This is done by checking the specified executable's dynamic linking information, and invoking the loader to parse its output for a version string. If the loader is musl, the output would be something like:: musl libc (x86_64) Version 1.2.2 Dynamic Program Loader �rbNT)�stderr�universal_newlines) � contextlib� ExitStack� enter_context�open�IOErrorr7 � subprocess�run�PIPErN rQ )rO �stackr �ld�procr r r �_get_musl_versionV s &r^ )�archr c c sH t tj�}|du rdS t|jdd�D ] }d|j� d|� d| � �V q$dS )aT Generate musllinux tags compatible to the current platform. :param arch: Should be the part of platform tag after the ``linux_`` prefix, e.g. ``x86_64``. The ``linux_`` prefix is assumed as a prerequisite for the current platform to be musllinux-compatible. :returns: An iterator of compatible musllinux tags. N���� musllinux_r. )r^ �sysrO r% r: r9 )r_ �sys_muslr: r r r � platform_tagsn s rd �__main__zlinux-z not linuxzplat:zmusl:ztags:� )�endz[.-]r. �-r r` z )#�__doc__rS � functoolsr# r& rI r rX rb �typingr r r r r �bytes�strr> r r7 r8 rN � lru_cacher^ rd r; � sysconfig� get_platform�plat� startswith�printrO �sub�split�tr r r r �<module> s2 1 "