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편집 파일: _musllinux.cpython-310.pyc
o ƚRe � @ s~ d Z ddlZddlZddlZddlZddlZddlZddlZddlZddl m Z m Z m Z m Z mZ de e dedeedf fdd �Zde e de e fd d �ZG d d � d e �Zdede e fdd�Ze�� dede e fdd��Zdede e fdd�Zedkr�ddlZe�� Z e � d�s�J d��e de � e deej �� e d d d � ee� d d e �!d!d"�d# ��D ] Z"e e"d$d � q�dS dS )%z�PEP 656 support. This module implements logic to detect if the currently running Python is linked against musl, and what musl version is used. � N)�IO�Iterator� NamedTuple�Optional�Tuple�f�fmt�return.c C s t �|| �t �|���S �N)�struct�unpack�read�calcsize)r r � r ��/builddir/build/BUILDROOT/alt-python310-pip-21.3.1-3.el8.x86_64/opt/alt/python310/lib/python3.10/site-packages/pip/_vendor/packaging/_musllinux.py�_read_unpacked s r c C sb | � d� zt| d�}W n tjy Y dS w |dd� td�kr$dS | � t�d�d� zdd d �|d \}}}W n tyE Y dS w tj|� }zt| |�\}}}}}}} W n tjyd Y dS w t | d �D ]C} | � ||| � z |t| |��\} } } W n tjy� Y dS w | d kr�qk| � | � t � | � | ��� d �}d |vr� 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 sN ��� � �� 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 �outputc C sx dd� dd� | � � D �D �}t|�dk s |d d d� dkr d S t�d |d �}|s,d S tt|�d ��t|�d��d �S ) Nc S s g | ]}|r|�qS r r ��.0�nr r r � <listcomp>M s z'_parse_musl_version.<locals>.<listcomp>c s s � | ]}|� � V qd S r )r( rA r r r � <genexpr>M s � 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 rM � executablec C s� t �� �'}z |�t| d��}W n ty Y W d � dS w t|�}W d � n1 s.w Y |s7dS 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�PIPErM rP )rN �stackr �ld�procr r r �_get_musl_versionV s � � r] �archc c sJ � t tj�}|du r dS t|jdd�D ]}d|j� d|� d| � �V qdS )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] �sysrN r% r: r9 )r^ �sys_muslr: r r r � platform_tagsn s � �rc �__main__zlinux-z not linuxzplat:zmusl:ztags:� )�endz[.-]r. �-r r_ z )#�__doc__rR � functoolsr# r& rH r rW ra �typingr r r r r �bytes�strr> r r7 r8 rM � lru_cacher] rc r; � sysconfig� get_platform�plat� startswith�printrN �sub�split�tr r r r �<module> s8 "1 "�