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o ;jt � @ s. d Z ddlZddlZddlZddlZddlmZmZmZm Z ddl m Z G dd� de�Z de d ee fd d �Ze�� d e d ee fd d��Zde e d ee fdd�Zedkr�ddlZe�� Ze�d�shJ d��ede� edeej�� eddd� ee�dde�d d�d ��D ] Zeed 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)�Iterator� NamedTuple�Optional�Sequence� )�ELFFilec @ s e Zd ZU eed< eed< dS )� _MuslVersion�major�minorN)�__name__� __module__� __qualname__�int�__annotations__� r r �H/opt/saltstack/salt/lib/python3.10/site-packages/packaging/_musllinux.pyr s r �output�returnc 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> s z'_parse_musl_version.<locals>.<listcomp>c s s � | ]}|� � V qd S )N)�stripr r r r � <genexpr> s � z&_parse_musl_version.<locals>.<genexpr>� r � �muslzVersion (\d+)\.(\d+)r )r r )� splitlines�len�re�matchr r �group)r �lines�mr r r �_parse_musl_version s r$ � executablec C s� z t | d�� }t|�j}W d � n1 sw Y W n tttfy) Y dS w |du s2d|vr4dS 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 �rbNr T)�stderr�text) �openr � interpreter�OSError� TypeError� ValueError� subprocess�run�PIPEr$ r' )r% �fZld�procr r r �_get_musl_version s ��� r3 �archsc c sT � t tj�}|du r dS | D ]}t|jdd�D ]}d|j� d|� d|� �V qqdS )a� Generate musllinux tags compatible to the current platform. :param archs: Sequence of compatible architectures. The first one shall be the closest to the actual architecture and 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���Z musllinux_�_)r3 �sysr% �ranger r )r4 Zsys_musl�archr r r r � platform_tags6 s � ��r: �__main__zlinux-z not linuxzplat:zmusl:ztags:� )�endz[.-]r6 �-r5 z ) �__doc__� functoolsr r. r7 �typingr r r r Z_elffiler r �strr$ � lru_cacher3 r: r � sysconfigZ get_platform�plat� startswith�printr% �sub�split�tr r r r �<module> s. "�
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